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Jasim Mohammed, Samir, and Zaid Saadi Hussein. "Design and implementation DVB-S & DVB-S2 systems." Indonesian Journal of Electrical Engineering and Computer Science 20, no. 3 (December 1, 2020): 1444. http://dx.doi.org/10.11591/ijeecs.v20.i3.pp1444-1452.
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<p>Digital video broadcasting plays an important role in most digital communication systems. Digital broadcasting systems are designed with great accuracy and delicate design which has a major role in our lives today especially digital video broadcasting. It is these systems that are considered to be the most advanced in transmission, reception and reliability. From these systems they develop through the digital video broadcasting project group.The most important are digital video broadcasting of terrestrial, digital video broadcasting of cable and digital video broadcasting of satellite because of that many user's desires to use communications and entertainment in their lives there are new and demanding situations that the standards of these systems can only meet for their own applications .In this paper, it will design and implement the digital video broadcasting of satellite first generation and digital video broadcasting of satellite second generation of binary data,image and audio using Matlab-Simulink environment.In addition, will calculate the bit error rate of the signal. This system is designed with precision to improve performance errors and increase transmission capacity as well as provide a safe environment for information.</p>
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Ellis, Katie. "Digital Television Flexibility: A Survey of Australians with Disability." Media International Australia 150, no. 1 (February 2014): 96–105. http://dx.doi.org/10.1177/1329878x1415000120.
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Flexibility for many viewers comes from digital technologies and their interaction with television broadcasting. Significantly, as television is switched to digital transmissions, viewers with disability have the potential to experience flexibility in the form of accessibility features such as audio descriptions, captions, lip-reading avatars, signing avatars, spoken subtitles and clean audio. This flexibility may in fact provide some people with access to television for the first time. This exploratory study reports results from an online survey of Australians with disabilities conducted during the final months of the simulcast period before analogue signals were switched off in 2013. While captioning emerged as the most desired accessibility feature, differences surfaced when the data were broken into specific impairment types. This article highlights the importance of digital flexibility specific to impairment type, and locates people with disability as a significant group to consider as more changes take place around digital television broadcasting via the NBN.
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Lema, Gebrehiwet Gebrekrstos, Teklehaymanot Baweke Reda, Dawit Hailu, and Tole Sutikno. "Practical understanding of the operating principle of digital communication systems." Indonesian Journal of Electrical Engineering and Computer Science 16, no. 1 (October 1, 2019): 299. http://dx.doi.org/10.11591/ijeecs.v16.i1.pp299-310.
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There are many students and researcher who doesn’t really understand the practical operating principle of digital communication system. Hence in this paper, the digital communication system is studied and simulated. In the system kit development text and audio inputs are taken and encrypted with different encryption techniques including additive cipher, multiplicative cipher and affine ciphers. The encrypted data is converted in to an 8-bit binary, channel encoded with distinct channel coding styles like linear block encoder, cyclic encoder and convolutional encoder, line coded and band pass modulated by different digital modulation techniques. Finally, the developed software is tested with equivalent inputs of the current national TV broadcasting and the results found are correct according to the theoretical analysis of the discussion.
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Zhang, Yi, Zhanxin Yang, Lunhui Deng, and Shanshan Li. "Research on Wireless Positioning Technology Based on Digital FM Broadcasting." International Journal of Digital Multimedia Broadcasting 2019 (May 2, 2019): 1–10. http://dx.doi.org/10.1155/2019/1051386.
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With more and more new mobile devices (such as mobile phones, tablets, and wearable devices) entering people’s daily life, along with the application and development of relevant technologies based on users’ location information, location based service is becoming a basic service demand of people’s life. This paper puts forward a research on location technology based on frequency modulation band digital audio broadcasting (FM China Digital Radio, FM-CDR). A new method of adding timestamp information to the FM-CDR frame structure is proposed, which verified that the change to the system does not affect the normal transmission and reception of broadcast content under the original standards and can accurately extract the recognition signal and timing information of BS. In the complex environment, the estimation algorithm of signal parameters such as received signal strength (RSS), time of arrival (TOA), and time difference of arrival (TDOA) of terrestrial radio broadcast signals is studied. In this paper, a new method based on multisource data fusion is proposed, which can meet the need of localization in various environments and overcome the deficiency of single localization method.
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Manhas, Pratima, and M. K. Soni. "Optimized OFDM Model Using CMA Channel Equalization for BER Evaluation." Bulletin of Electrical Engineering and Informatics 6, no. 2 (June 1, 2017): 133–39. http://dx.doi.org/10.11591/eei.v6i2.614.
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Orthogonal Frequency Division Multiplexing (OFDM) is a type of Multicarrier Modulation (MCM) technique in which entire bandwidth is divided into large number of small sub-carriers and each subcarrier is transmitted parallel to achieve higher data rates. It has various applications like Digital Audio Broadcasting (DAB), Digital Video Broadcasting (DVB) and wireless LAN.OFDM technique is widely used in wireless communication system because of its very high data rate. The performance of FFT based OFDM system using Linear and cyclic channel coding and Constant Modulus Algorithm (CMA) equalizer is simulated using simulink model. The BER saving using the optimized proposed model with both linear and cyclic channel coding along with CMA equalizer is evaluated. The proposed work using cyclic channel coding with QPSK/QAM modulation and CMA as channel equalization under AWGN channel results in 52.6% and 96.3% BER reduction as compared to conventional OFDM model without channel coding, channel equalization and channel fading. So, CMA equalizer is used to enhance the performance of OFDM system.
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Yang, Ming, Chih-Cheng Hung, and Edward Jung. "Secure Information Delivery through High Bitrate Data Embedding within Digital Video and its Application to Audio/Video Synchronization." International Journal of Information Security and Privacy 6, no. 4 (October 2012): 71–93. http://dx.doi.org/10.4018/jisp.2012100104.
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Secure communication has traditionally been ensured with data encryption, which has become easier to break than before due to the advancement of computing power. For this reason, information hiding techniques have emerged as an alternative to achieve secure communication. In this research, a novel information hiding methodology is proposed to deliver secure information with the transmission/broadcasting of digital video. Secure data will be embedded within the video frames through vector quantization. At the receiver end, the embedded information can be extracted without the presence of the original video contents. In this system, the major performance goals include visual transparency, high bitrate, and robustness to lossy compression. Based on the proposed methodology, the authors have developed a novel synchronization scheme, which ensures audio/video synchronization through speech-in-video techniques. Compared to existing algorithms, the main contributions of the proposed methodology are: (1) it achieves both high bitrate and robustness against lossy compression; (2) it has investigated impact of embedded information to the performance of video compression, which has not been addressed in previous research. The proposed algorithm is very useful in practical applications such as secure communication, captioning, speech-in-video, video-in-video, etc.
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Baranchuk, A., G. Dagnone, P. Fowler, M. N. Harrison, L. Lisnevskaia, B. Etemadi, D. Blouin, D. P. Redfearn, and C. S. Simpson. "45. Education at distance: Broadcasting ECG rounds to Southeastern Ontario (BESO Project). An innovative approach for teaching electrocardiography." Clinical & Investigative Medicine 30, no. 4 (August 1, 2007): 51. http://dx.doi.org/10.25011/cim.v30i4.2805.
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Electrocardiography (ECG) interpretation is an essential skill for physicians as well as for many other health care professionals. Continuing education is necessary to maintain these skills. The process of teaching and learning ECG interpretation is complex and involves both deductive mechanisms and recognition of patterns for different clinical situations (“pattern recognition”). The successful methodologies of interactive sessions and real time problem based learning have never been evaluated with a long distance education model.
To evaluate the efficacy of broadcasting ECG rounds to different hospitals in the Southeastern Ontario region; to perform qualitative research to determine the impact of this methodology in developing and maintaining skills in ECG interpretation.
ECG rounds are held weekly at Kingston General Hospital and will be transmitted live to Napanee, Belleville, Oshawa, Peterborough and Brockville. The teaching methodology is based on real ECG cases. The audience is invited to analyze the ECG case and the coordinator will introduce comments to guide the case through the proper algorithm. Final interpretation will be achieved emphasizing the deductive process and the relevance of each case. An evaluation will be filled out by each participant at the end of each session.
Videoconferencing works through a vast array of internet LANs, WANs, ISDN phone lines, routers, switches, firewalls and Codecs (Coder/Decoder) and bridges. A videoconference Codec takes the analog audio and video signal codes and compresses it into a digital signal and transmits that digital signal to another Codec where the signal is decompressed and retranslated back into analog video and audio. This compression and decompression allows large amounts of data to be transferred across a network at close to real time (384 kbps with 30 frames of video per second). Videoconferencing communication works on voice activation so whichever site is speaking has the floor and is seen by all the participating sites. A continuous presence mode allows each site to have the same visual and audio involvement as the host site. A bridged multipoint can connect between 8 and 12 sites simultaneously.
This innovative methodology for teaching ECG will facilitate access to developing and maintaining skills in ECG interpretation for a large number of health care providers.
Bertsch TF, Callas PW, Rubin A. Effectiveness of lectures attended via interactive video conferencing versus in-person in preparing third-year internal medicine clerkship students for clinical practice examinations. Teach Learn Med 2007; 19(1):4-8.
Yellowlees PM, Hogarth M, Hilty DM. The importance of distributed broadband networks to academic biomedical research and education programs. Acad Psychaitry 2006;30:451-455
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Soenarto, Sunaryo. "A Need Analysis on Character-Based Campus Television to Support the Integrated Laboratory of Learning Technology." Jurnal Pendidikan Teknologi dan Kejuruan 25, no. 2 (October 1, 2019): 237–43. http://dx.doi.org/10.21831/jptk.v25i2.25151.
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The role of Campus Television (TV) in a university can integrate human resources and audio visual laboratory facilities in each faculty, especially to face today’s digital communication era. The objectives of this study were: (1) to determine the academic community's needs for Campus Television media in Universitas Negeri Yogyakarta (UNY) based on faculties, and the academicians status and (2) to map program types broadcasted by the Campus TV in UNY that were expected by UNY academic community. A survey to the academic community in UNY (consisted of lecturers, employees, and students) was conducted as the research method. Electronic-based questionnaires and smartphones with Google form applications were used as the technique in the data collection. The research subjects were 409 respondents. The data analysis technique was descriptive quantitative. This study concluded that (1) lecturer who agreed and doubted about the existence of Campus TV in UNY were 97.33%, and 2.66% respectively; (2) Employees who agreed was 100%; and (3) Students who agreed, doubted, and disagreed about the existence of Campus TV in UNY were 92.63%, 6.31%, and 1.02% respectively. Campus TV broadcasting programs required by the academic community in UNY included: (1) innovative work programs, (2) campus information, (3) campus activity programs (community service, teaching practice, conference), (4) talk show and (5) skills program. This study provided encouragement to academic community of UNY to support the realization of Campus TV as the integrated laboratory for learning technology.
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Carrere, G. "Digital audio broadcasting by satellite: A new approach." International Journal of Satellite Communications 13, no. 4 (July 1995): 209. http://dx.doi.org/10.1002/sat.4600130403.
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Franchi, A., E. Colzi, C. Elia, and R. A. Harris. "Performance of cofdm for satellite digital audio broadcasting." International Journal of Satellite Communications 13, no. 4 (July 1995): 229–42. http://dx.doi.org/10.1002/sat.4600130407.
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Prosch, Theodor A. "Digital audio broadcasting (DAB) over non-stationary satellite systems." International Journal of Satellite Communications 18, no. 6 (November 2000): 433–56. http://dx.doi.org/10.1002/1099-1247(200011/12)18:6<433::aid-sat669>3.0.co;2-8.
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Wylie, F. "Digital audio data compression." Electronics & Communication Engineering Journal 7, no. 1 (February 1, 1995): 5–10. http://dx.doi.org/10.1049/ecej:19950103.
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Shelswell, P. "The COFDM modulation system: the heart of digital audio broadcasting." Electronics & Communication Engineering Journal 7, no. 3 (June 1, 1995): 127–36. http://dx.doi.org/10.1049/ecej:19950309.
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Palmer, Duncan, Terry Moore, Chris Hill, Marcus Andreotti, and David Park. "Radio Positioning using the Digital Audio Broadcasting (DAB) Signal." Journal of Navigation 64, no. 1 (November 26, 2010): 45–59. http://dx.doi.org/10.1017/s037346331000041x.
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Over the recent decades, there have been a number of trends that have driven the desire to improve the ability to position and navigate in all environments. While GPS has been the driving factor behind most of these trends, there are limitations to GPS that have become more evident over time as the World has increasingly come to rely on location. These limitations are mostly due to the low transmission power of GPS satellites, where navigation signals broadcast from space are comparatively weak, especially by the time they have travelled to receivers on the ground. This makes the signals particularly vulnerable to fading in difficult environments such as built-up urban areas. The low signal-to-noise ratio (SNR) also means that the signals are susceptible to jamming, both hostile and accidental.This motivates the need for non-GPS (or, more generally, non-GNSS) navigation technologies, for example, terrestrial based alternatives to GNSS such as eLoran. But, there is also significant interest in the exploitation of other non-navigation signals for positioning and navigation purposes. These so-called ‘Signals of Opportunity’ (SoOP) do not generally require any alterations to existing communications transmission infrastructure and often use alternative multi-carrier modulation techniques to those methods used by most GNSS services. The major challenge of using a SoOP for location purposes is that the transmitter network infrastructure has not generally been designed with positioning as a requirement.An ongoing project, at the Institute of Engineering Surveying and Space Geodesy (IESSG) of the University of Nottingham, is directed towards an investigation of the potential of the Digital Audio Broadcast (DAB) signal for positioning purposes. A prototype Software Defined Radio (SDR) DAB positioning receiver has been developed and has now been tested. This paper presents a detailed review of the structure of the DAB signals and explains how these signals can be used as the basis of a positioning system. In addition the development of the prototype SDR receiver and the initial results are presented and discussed.
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Gilski, Przemysław, Sławomir Gajewski, and Jacek Stefański. "Quality Aspects in Digital Broadcasting and Webcasting Systems: Bitrate versus Loudness." Journal of Telecommunications and Information Technology, no. 2 (June 30, 2017): 26–31. http://dx.doi.org/10.26636/jtit.2017.114217.
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In this paper the quality aspects of bitrate and loudness in digital broadcasting and webcasting systems are examined. The authors discuss a survey concerning user preferences related with processing and managing audio content. The coding efficiency of a popular audio format is analyzed in the context of storing media. An objective study on a representative group of signal samples, as well as a subjective study of the perceived quality of real-time broadcasted and webcasted radio programs are performed.
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Mohammady, Somayeh, Ronan Farrell, David Malone, and John Dooley. "Performance Investigation of Peak Shrinking and Interpolating the PAPR Reduction Technique for LTE-Advance and 5G Signals." Information 11, no. 1 (December 28, 2019): 20. http://dx.doi.org/10.3390/info11010020.
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Orthogonal frequency division multiplexing (OFDM) has become an indispensable part of waveform generation in wideband digital communication since its first appearance in digital audio broadcasting (DAB) in Europe in 1980s, and it is indeed in use. As has been seen, the OFDM based waveforms work well with time division duplex operation in new radio (NR) systems in 5G systems, supporting delay-sensitive applications, high spectral efficiency, massive multiple input multiple output (MIMO) compatibility, and ever-larger bandwidth signals, which has demonstrated successful commercial implementation for 5G downlinks and uplinks up to 256-QAM modulation schemes. However, the OFDM waveforms suffer from high peak to average power ratio (PAPR), which is not desired by system designers as they want RF power amplifiers (PAs) to operate with high efficiency. Although NR offers some options for maintaining the efficiency and spectral demand, such as cyclic prefix based (CP-OFDM), and discrete Fourier transform spread based (DFT-S-OFDM) schemes, which have limiting effects on PAPR, the PAPR is still as high as 13 dB. This value increases when the bandwidth is increased. Moreover, in LTE-Advance and 5G systems, in order to increase the bandwidth, and data-rate, carrier aggregation technology is used which increases the PAPR the same way that bandwidth increment does; therefore, it is essential to employ PAPR reduction in signal processing stage before passing the signal to PA. In this paper, we investigate the performance of an innovative peak shrinking and interpolation (PSI) technique for reducing peak to average power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM) based signals at waveform generation stage. The main idea behind the PSI technique is to extract high peaks, scale them down, and interpolate them back into the signal. It is shown that PSI technique is a possible candidate for reducing PAPR without compromising on computational complexity, compatible for existing and future telecommunication systems such as 4G, 5G, and beyond. In this paper, the PSI technique is tested with variety of signals in terms of inverse fast Fourier transform (IFFT) length, type of the signal modulation, and applications. Additional work has been carried out to compare the proposed technique with other promising PAPR reduction techniques. This paper further validates the PSI technique through experimental measurement with a power amplifier (PA) test bench and achieves an adjacent channel power ratio (ACPR) of less than –55 dBc. Results showed improvement in output power of PA versus given input power, and furthermore, the error vector magnitude (EVM) of less than 1 % was achieved when comparing of the signal after and before modification by the PSI technique.
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Losquadro, G. "Digital audio broadcasting: High-grade service quality through on-board processing techniques." International Journal of Satellite Communications 13, no. 4 (July 1995): 273–81. http://dx.doi.org/10.1002/sat.4600130411.
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Park, Chul-Ho, Seong-Moo Yoo, Hyunseung Choo, and W. David Pan. "Multi-user data multiplexing for digital multimedia broadcasting." Computer Communications 29, no. 18 (November 2006): 3970–75. http://dx.doi.org/10.1016/j.comcom.2006.06.022.
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Sammo Cho, Soo In Lee, and Hyuckjae Lee. "Managing multimedia data services with multiple ensemble decoding architecture in digital audio broadcasting system." IEEE Transactions on Consumer Electronics 50, no. 1 (February 2004): 274–80. http://dx.doi.org/10.1109/tce.2004.1277874.
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Telagam, Nagarjuna, Padma Charan Sahu, Sunita Panda, and Nehru Kandasamy. "USRP Based Digital Audio Broadcasting Using OFDM in Virtual and Remote Laboratory." International Journal of Online and Biomedical Engineering (iJOE) 15, no. 13 (September 30, 2019): 77. http://dx.doi.org/10.3991/ijoe.v15i13.8761.
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Digital Audio Broadcasting (DAB) is an amazing technology, achieving its promise of certainly delivering high quality digital audio in the most vindicate mobile and fixed receiver environments. The radio signal processing capability can be provided by Universal software radio peripheral (USRP) hardware. The received signal frequency can be controlled and transmitting the signal through wireless is possible by installing NI USRP utility configuration. The programmable USRP was running the VI snippet program in block diagram panel with radio companion integrated through USB cable on windows 7 64. With the parameters such as IQ rate, transmitter gain, carrier frequency along with device name which is given as ni2901_1 the students can able to tune the radio signal. DAB technology is integrated with USRP device using prominent OFDM technique for promise delivery of high quality audio signal. DAB works under four transmission modes in this paper. In this paper RF0 module is used USRP device is connected with dual band vertical antenna with 2.4 and 5GHz frequency as Tx1. This transmitting VI snippet program will support all file formats such as.wav, mp3, etc. the intention of the paper is to transmit the real time data through long distance using DAB technology in remote laboratory. The proposed system is implemented in virtual lab so that it can be accessed by any user from anywhere. This system is successfully tested on institute of aeronautical engineering virtual lab.
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Gotoh, Yusuke, Tomoki Yoshihisa, Hideo Taniguchi, Masanori Kanazawa, Wenny Rahayu, and Yi-Ping Phoebe Chen. "A Scheduling Method to Reduce Waiting Time for Close-Range Broadcasting." Mobile Information Systems 8, no. 4 (2012): 303–14. http://dx.doi.org/10.1155/2012/768269.
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Due to the recent popularization of digital broadcasting systems, close-range broadcasting using continuous media data, i.e. audio and video, has attracted great attention. For example, in a drama, after a user watches interesting content such as a highlight scene, he/she will watch the main program continuously. In close-range broadcasting, the necessary bandwidth for continuously playing the two types of data increases. Conventional methods reduce the necessary bandwidth by producing an effective broadcast schedule for continuous media data. However, these methods do not consider the broadcast schedule for two types of continuous media data. When the server schedules two types of continuous media data, waiting time that occurs from finishing the highlight scene to starting the main scene, may increase. In this paper, we propose a scheduling method to reduce the waiting time for close-range broadcasting. In our proposed method, by dividing two types of data and producing an effective broadcast schedule considering the available bandwidth, we can reduce the waiting time.
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Abdourahamane, Ali. "ADVANTAGES OF OPTICAL ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING IN COMMUNICATIONS SYSTEMS." EUREKA: Physics and Engineering 2 (March 31, 2016): 27–33. http://dx.doi.org/10.21303/2461-4262.2016.00058.
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The role of the optical transmitter is to generate the optical signal, impose the information bearing signal, and launch the modulated signal into the optical fiber. The semiconductor light sources are commonly used in state-of-the-art optical communication systems. Optical communication systems has become one of the important systems after the advent of telephone, internet, radio networks in the second half of the 20th century. The development of optical communication was caused primarily by the rapidly rising demand for Internet connectivity. Orthogonal frequency-division multiplexing (OFDM) belongs to a wide class of multicarrier modulation. Orthogonal frequency-division multiplexing has succeeded in a wide range of applications in the wireless communication domain from video/audio digital broadcasting to wireless local area networks (LANs). Although their very low loss compared to that of the wireless counterpart, optical systems still need renovation for spans commonly less than150 Km. In this paper advantages of optical orthogonal frequency division multiplexing in communications systems will explained.
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Zheng, Feng, Han Rong Lu, and Le Jiang Guo. "The Application of Data Radio Broadcasting Station Base on GPRS." Applied Mechanics and Materials 423-426 (September 2013): 2651–54. http://dx.doi.org/10.4028/www.scientific.net/amm.423-426.2651.
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Data transmission networks based on GPRS has become a rapid rising data transmission way with its high reliability, networking convenience, low costs and other advantages. Advanced communications systems also involve a digital data radio communication technique as a promising technology that may bring many benefits to the communication community. This article makes a comprehensive comparison and analysis on the transport mechanism, networking and many other aspects, providing a network promotion scheme from data radio based on GPRS.
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Agarwal, Arun, and S. K. Patra. "Performance Prediction of Eureka-147 DAB System Using Interleaving and Different Coding Rates." Advanced Materials Research 403-408 (November 2011): 4119–25. http://dx.doi.org/10.4028/www.scientific.net/amr.403-408.4119.
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Radio broadcasting technology has evolved rapidly over the last few years due to ever increasing demands for as high quality sound services with ancillary data transmission in mobile environment. The Eureka-147 Digital Audio Broadcasting (DAB) system with coded OFDM technology accomplish this demand by making receivers highly robust against effects of multipath fading environment. In this paper, we have analyzed the performance of DAB system conforming to the parameters established by the ETSI (EN 300 401) using frequency interleaving and different coding rates in different transmission channels. The results show that interleaving is essential for the forward error correction to work properly and an increased coding rate makes the system more flexible without increase in the receiver complexity.
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Vryzas, Nikolaos, Nikolaos Tsipas, and Charalampos Dimoulas. "Web Radio Automation for Audio Stream Management in the Era of Big Data." Information 11, no. 4 (April 11, 2020): 205. http://dx.doi.org/10.3390/info11040205.
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Radio is evolving in a changing digital media ecosystem. Audio-on-demand has shaped the landscape of big unstructured audio data available online. In this paper, a framework for knowledge extraction is introduced, to improve discoverability and enrichment of the provided content. A web application for live radio production and streaming is developed. The application offers typical live mixing and broadcasting functionality, while performing real-time annotation as a background process by logging user operation events. For the needs of a typical radio station, a supervised speaker classification model is trained for the recognition of 24 known speakers. The model is based on a convolutional neural network (CNN) architecture. Since not all speakers are known in radio shows, a CNN-based speaker diarization method is also proposed. The trained model is used for the extraction of fixed-size identity d-vectors. Several clustering algorithms are evaluated, having the d-vectors as input. The supervised speaker recognition model for 24 speakers scores an accuracy of 88.34%, while unsupervised speaker diarization scores a maximum accuracy of 87.22%, as tested on an audio file with speech segments from three unknown speakers. The results are considered encouraging regarding the applicability of the proposed methodology.
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Rachmiati, Desy, Imam Qalyubi, and Zaitun Qamariah. "THE USE OF BRITISH BROADCASTING CORPORATION (BBC) PODCAST IN EFL STUDENTS' LISTENING SKILL IN IAIN PALANGKA RAYA." PROJECT (Professional Journal of English Education) 4, no. 4 (July 12, 2021): 738. http://dx.doi.org/10.22460/project.v4i4.p738-743.
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A podcast is a digital multimedia file that can be downloaded to a portable media player, phone, or other device via the internet. There are many audio podcast that can be used in learning listening, one of them is British Broadcasting Corporation (BBC) podcast. This research aimed to describe how the contribution and the problems in using British Broadcasting Corporation (BBC) podcast in EFL students’ listening skill. This research was conducted at IAIN Palangka Raya. The type of this study was a qualitative approach. The data was taken from interview and documentation. Eight EFL students and two lecturers in IAIN Palangka Raya were the subjects of this research. They were determined by purposive sampling technique. The findings reveal that the use of British Broadcasting Corporation (BBC) podcast give positive contribution to students’ listening skill. Based on the result of the research using British Broadcasting Corporation (BBC) podcast can develop students’ listening skill, vocabularies and they will be familiar with British accent. The problems in using the BBC podcast faced by the students were unfamiliar pronunciation, lack of vocabularies, and the speaker who spoke fast. Keywords: Podcast, British Broadcasting Corporation (BBC) podcast, EFL students, listening skill
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Chen, Chien-Sheng, Chyuan-Der Lu, Ho-Nien Shou, and Le-Wei Lin. "Baseband Transceiver Design of a High Definition Radio FM System Using Joint Theoretical Analysis and FPGA Implementation." International Journal of Antennas and Propagation 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/580479.
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Advances in wireless communications have enabled various technologies for wireless digital communication. In the field of digital radio broadcasting, several specifications have been proposed, such as Eureka-147 and digital radio mondiale (DRM). These systems require a new spectrum assignment, which incurs heavy cost due to the depletion of the available spectrum. Therefore, the in-band on-channel (IBOC) system has been developed to work in the same band with the conventional analog radio and to provide digital broadcasting services. This paper discusses the function and algorithm of the high definition (HD) radio frequency modulation (FM) digital radio broadcasting system. Content includes data format allocation, constellation mapping, orthogonal frequency division multiplexing (OFDM) modulation of the transmitter, timing synchronization, OFDM demodulation, integer and fraction carrier frequency (integer carrier frequency offset (ICFO) and fractional CFO (FCFO)) estimation, and channel estimation of the receiver. When we implement this system to the field programmable gate array (FPGA) based on a hardware platform, both theoretical and practical aspects have been considered to accommodate the available hardware resources.
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Yang, Chaozhong, Yulin Wang, Shifeng Li, and Wenhe Yan. "Experimental Study of a Signal Modulation Method to Improve eLORAN Data Channel Communications." Sensors 20, no. 22 (November 14, 2020): 6504. http://dx.doi.org/10.3390/s20226504.
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There are mainly two types of data modulation methods used for enhanced LOng-RAnge Navigation (eLORAN) systems: pulse position modulation (PPM) and supernumerary interpulse modulation (SIM). The typical application for PPM is tri-state PPM (3S-PPM), also known as Eurofix. The typical application for SIM is ninth pulse modulation. Both of these methods are phase modulation methods. Phase modulation coding, a very mature technology, is used at present. To achieve a better demodulation success rate of eLORAN digital modulation signals at longer distances, a method of using the transmitting station duplex mode to transmit a digital modulation pulse group after LORAN-C transmitting a pulse group is proposed to realize modulation pulse on–off modulation. In this method, a broadcasting experiment was performed on the BPL (The call sign of eLORAN time service system in China) broadcaster station. After monitoring, a good receiving demodulation effect was initially obtained.
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Ramdhani, Galih Sasmi, Wahyu Pamungkas, and Yana Yuniarsyah. "Pemanfaatan Jaringan Komputer Untuk Aplikasi IPTV (Internet Protocol Television) Studi Kasus Akatel Sandhy Putra Purwokerto." JURNAL INFOTEL - Informatika Telekomunikasi Elektronika 2, no. 2 (November 10, 2010): 25. http://dx.doi.org/10.20895/infotel.v2i2.80.
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Internet Protocol Television (IPTV) adalah suatu pengembangan baru dalam software komunikasi client-server yang mem-broadcast video yang berkualitas tinggi melalui jaringan internet protocol. IPTV melayani baik siaran langsung (live) maupun program atau video yang tersimpan di server. Streaming adalah sebuah teknologi untuk memainkan file video atau audio secara langsung ataupun dengan prerecorded dari sebuah mesin server. File video atau audio yang terletak pada server dapat secara langsung dijalankan pada komputer client sesaat setelah ada permintaan dari users sehingga proses download yang menghabiskan waktu cukup lama dapat dihindari. Digital Video Broadcasting (DVB) adalah salah satu sistem yang digunakan untuk mentransmisikan siaran TV / Video digital hingga sampai ke pengguna akhir (end-user). Proses Transmisi siaran TV umumnya masih menggunakan metode analog, maka dengan adanya streaming TV channel berbasis DVB merupakan suatu perkembangan distribusi siaran televisi yang tadinya secara analog menjadi digital. Oleh karena itu pada penelitian ini akan dibahas mengenai aplikasi IPTV yang berbasis DVB dengan metode streaming pada Ubuntu 9.04 yang merupakan distro Linux dengan media transmisi Wireless LAN Akatel Sandhy Putra Purwokerto. Metode streaming yang digunakan adalah broadcast yaitu pengiriman data, dimana data dikirimkan ke banyak titik sekaligus, tanpa melakukan pengecekan apakah titik tersebut siap atau tidak, atau tanpa memperhatikan apakah data itu sampai atau tidak. Contoh penggunaan sistem ini adalah siaran televisi dan radio.
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Yohanes, Yulanda Trisula, Nimas Parista Pancawati, and Lalu Ahmad Rahmat. "Management Strategy of Radio Republik Indonesia (RRI) Mataram in the Digital Era." JCommsci - Journal of Media and Communication Science 1, no. 3 (August 7, 2019): 109. http://dx.doi.org/10.29303/jcommsci.v1i3.50.
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RRI Mataram is an independent, neutral and non-commercial Public Broadcasting Institution that serves to provide information broadcasting, education, healthy entertainment, social control, and maintain a positive image of the nation in the international community. In the digital era, which was the era of media convergence, RRI Mataram did not escape from efforts to remain in the midst of society. This study aims to determine the management strategy of LPP RRI Mataram in the face of the digital era. This study uses a qualitative descriptive method with several steps, namely: Observation, interview, documentation, data analysis and conclusion. From the results of the study, the researchers formulated LPP RRI Mataram's management strategy using a SWOT analysis, including: understanding market share by presenting interesting and interesting shows to the community, maximizing and expanding networks of cooperation with various agencies, utilizing relations with the government, organizing programs for listeners, provide rewards for employees who excel, improve the quality of human resources by providing continuous training, conduct Joint Branding, add segmentation to program 2, improve program quality, and utilize other media as a medium to improve the existence of LPP RRI Mataram, and also complete broadcast systems with audio and video streaming, as well as fixing the RRI PLAY GO application, and minimizing technical problems with optimal device maintenance. Keywords: management strategy; radio; RRI Mataram; digital era
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Tong Guoxiang, Wang Jingzhao, and Li Yi. "Design of a High-speed Data Processing Channel based on DSD for Digital Audio System." International Journal of Digital Content Technology and its Applications 5, no. 3 (March 31, 2011): 219–24. http://dx.doi.org/10.4156/jdcta.vol5.issue3.22.
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Ricke, J., L. Kleinholz, N. Hosten, W. Zendel, A. Lemke, W. Wielgus, K. H. Vöge, E. Fleck, R. Marciniak, and R. Felix. "Telemedicine in Rural Areas. Experience with Medical Desktop-Conferencing via Satellite." Journal of Telemedicine and Telecare 1, no. 4 (December 1995): 224–28. http://dx.doi.org/10.1177/1357633x9500100406.
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Cooperation between physicians in hospitals in rural areas can be assisted by desktop-conferencing using a satellite link. For six weeks, medical desktop-conferencing was tested during daily clinical conferences between the Virchow-Klinikum, Berlin, and the Medical Academy, Wroclaw. The communications link was provided by the German Telekom satellite system MCS, which allowed temporary connections to be established on demand by manual dialling. Standard hardware and software were used for videoconferencing, as well as software for medical communication developed in the BERMED project. Digital data, such as computed tomography or magnetic resonance images, were transmitted by a digital data channel in parallel to the transmission of analogue video and audio signals. For conferences involving large groups of people, hardware modifications were required. These included the installation of a video projector, adaptation of the audio system with improved echo cancellation, and installation of extra microphones. Learning to use an unfamiliar communication medium proved to be uncomplicated for the participating physicians.
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Chico, María Catalina Ovando, Emmanuel Olivera Pérez, and Juan Carlos Bocarando Lara. "Before and After the Reform: Fixed Line Internet Penetration in Mexican Households." Law, State and Telecommunications Review 10, no. 2 (October 15, 2018): 1–14. http://dx.doi.org/10.26512/lstr.v10i2.21490.
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Purpose – Despite being the second largest mobile market in Latin America regarding subscribers, Mexico’s penetration levels remain lower than the regional averages. The aim of this paper is to evaluate whether the Mexican 2013 Telecommunications and Broadcasting Reform helped mitigate or exacerbate the digital divide. In particular, we evaluate if the Reform had an impact on fixed-line internet penetration in Mexico.
Methodology/approach/design – For the assessment, the 2010 Census and 2015 Intercensal Survey data used to create impact indexes through Generalized Linear Models (GLMs) estimations.
Findings – Through a quintile analysis were confronted by results, with the intention of showing the average of internet penetration in each income group. The data obtained suggest that internet penetration had positive variations in all the quintiles indicating that recent regulatory changes in telecommunications matter had helped to reduce the digital divide.
Practical implications – The poor and vulnerable groups remain at the digital exclusion; these groups need more digital inclusion actions.
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Joshi, Jay M., Kiran R. Parmar, and Upena D. Dalal. "Design and Implementation of KASUMI Algorithm in ISMACryp Encryption for Video Content Protection in DVB-H Application." Advanced Materials Research 403-408 (November 2011): 3847–53. http://dx.doi.org/10.4028/www.scientific.net/amr.403-408.3847.
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Three technologies can be used for content protection in DVB-H; IPSec, SRTP and ISMACryp. ISMA Encryption and Authentication is one of the three chosen technologies for service protection in DVB-H (Digital Video Broadcasting - Handheld), the TV system for portable handheld devices. This paper deals with modification in ISMACryp. The ISMACryp is encoded with MPEG-4 video and MPEG-4 AAC (advanced audio coding), while leaving all structural data as it is. Two modes of ISMACryp are available; the CTR mode (Counter type) and CBC mode (Cipher Block Chaining) mode. Both modes of ISMACryp is based on 128-bit AES algorithm. AES algorithms are more complex and require larger time with more clock cycles for execution. This paper is being first simulate and implement existing ISMACryp using 128-bit Rijndael algorithm and then modified it with KASUMI algorithm that will be provided lower number of clock pulses with lower execution time. The simulation is done in Matlab and implementation in TMS320C6713 DSP kit.
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Lattner, Stefan, and Javier Nistal. "Stochastic Restoration of Heavily Compressed Musical Audio Using Generative Adversarial Networks." Electronics 10, no. 11 (June 5, 2021): 1349. http://dx.doi.org/10.3390/electronics10111349.
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Lossy audio codecs compress (and decompress) digital audio streams by removing information that tends to be inaudible in human perception. Under high compression rates, such codecs may introduce a variety of impairments in the audio signal. Many works have tackled the problem of audio enhancement and compression artifact removal using deep-learning techniques. However, only a few works tackle the restoration of heavily compressed audio signals in the musical domain. In such a scenario, there is no unique solution for the restoration of the original signal. Therefore, in this study, we test a stochastic generator of a Generative Adversarial Network (GAN) architecture for this task. Such a stochastic generator, conditioned on highly compressed musical audio signals, could one day generate outputs indistinguishable from high-quality releases. Therefore, the present study may yield insights into more efficient musical data storage and transmission. We train stochastic and deterministic generators on MP3-compressed audio signals with 16, 32, and 64 kbit/s. We perform an extensive evaluation of the different experiments utilizing objective metrics and listening tests. We find that the models can improve the quality of the audio signals over the MP3 versions for 16 and 32 kbit/s and that the stochastic generators are capable of generating outputs that are closer to the original signals than those of the deterministic generators.
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Prajapati, Y. N., and M. K. Srivastava. "Novel algorithms for protective digital privacy." IAES International Journal of Robotics and Automation (IJRA) 8, no. 3 (September 1, 2019): 184. http://dx.doi.org/10.11591/ijra.v8i3.pp184-188.
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Video is the recording, reproducing, or broadcasting of moving visual images. Visual multimedia source that combines a sequence of images to form a moving picture. The video transmits a signal to a screen and processes the order in which the screen captures should be shown. Videos usually have audio components that correspond with the pictures being shown on the screen. Video compression technologies are about reducing and removing redundant video data so that a digital video file can be effectively sent over a network and stored on computer disks. With efficient compression techniques, a significant reduction in file size can be achieved with little or no adverse effect on the visual quality. The video quality, however, can be affected if the file size is further lowered by raising the compression level for a given compression technique. Security is about the protection of assets. Security, in information technology <a href="http://searchdatacenter.techtarget.com/definition/IT">(IT), </a>is the defense of digital information and IT assets against internal and external, malicious and accidental threats. This defense includes detection, prevention and response to threats through the use of <a href="http://searchsecurity.techtarget.com/definition/security-policy">security policies, </a>software tools and IT services. Security refers to protective digital privacy measures that are applied to prevent unauthorized access to computers, databases and websites. Cryptography is closely related to the disciplines of <a href="http://searchsecurity.techtarget.com/definition/cryptology">cryptology </a>and <a href="http://searchsecurity.techtarget.com/definition/cryptanalysis">cryptanalysis. </a>Cryptography includes techniques such as microdots, merging words with images, and other ways to hide information in storage or transit. However, in today's computer-centric world, cryptography is most often associated with scrambling <a href="http://searchsecurity.techtarget.com/definition/plaintext">plaintext </a>(ordinary text, sometimes referred to as clear text into <a href="http://searchcio-midmarket.techtarget.com/definition/ciphertext">cipher text </a>(a process called <a href="http://searchsecurity.techtarget.com/definition/encryption">encryption), </a>then back again (known as decryption). Cryptography is evergreen and developments. Cryptography protects users by providing functionality for the encryption of data and authentication of other users. Compression is the process of reducing the number of bits or bytes needed to represent a given set of data. It allows saving more data. The project aims to implement security algorithm for data security. The data will be first encrypted using security techniques and that are done at the same time then it takes less processing time and more speed compression techniques will applied. If encryption and compression are done at the same time then it takes less processing time and more speed.
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Hidson, Elizabeth. "Pedagogy by proxy: teachers’ digital competence with crowd-sourced lesson resources." Pixel-Bit, Revista de Medios y Educación, no. 61 (2021): 197–229. http://dx.doi.org/10.12795/pixelbit.88108.
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This study explores how teachers of Information and Communications Technology (ICT) faced with a major National Curriculum change were able to teach the new elements of the programmes of study. A multiple case study involving nine experienced teachers was carried out, using thematic analysis to explore audio-visual and documentary data from lesson planning sessions captured mostly via video calling and desktop sharing. The process captured the various ways that teachers located, modified and re-used digital materials and accessed online communities of practice to develop crowd-sourced curricula. The results reveal that the alignment of teachers’ digital competence with their need to assimilate unfamiliar but necessary concepts into the pedagogical reasoning process facilitated the teachers in developing sufficient subject knowledge and pedagogical content knowledge (PCK). Knowledge deficits slowed down the fluency of teachers’ lesson-planning processes, but the location and use of crowd-sourced resources helped them to develop PCK. The teachers’ digital competences in sourcing suitable teaching resources from their communities of practice allowed the development of pedagogy by proxy.
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Aziz, Haris, Syed Mushhad Mustuzhar Gilani, Iqtadar Hussain, Abdul Kashif Janjua, and Shahzada Khurram. "A Noise-Tolerant Audio Encryption Framework Designed by the Application of S8 Symmetric Group and Chaotic Systems." Mathematical Problems in Engineering 2021 (April 11, 2021): 1–15. http://dx.doi.org/10.1155/2021/5554707.
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The recent decade has witnessed an exponential surge of digital content, especially multimedia and its applications. The security requirements of these innovative platforms necessitate the significance of enhancing advanced encryption schemes. In this paper, a novel encryption scheme is presented for real-time audio applications. The framework of the proposed scheme is grounded on the principles of confusion and diffusion. The confusion incorporates nonlinearity by the application of Mordell elliptic curves (MEC) and a symmetric group of permutations S8. The endurance of the proposed scheme is further enriched through the application of chaotic maps. The proposed scheme is intended to cater requirements of real-time voice communications in defense applications particularly warzones. The adoption of a modular design and fusion of chaotic maps makes the algorithm viable for numerous real-time audio applications. The security can further be enriched by incorporating additional rounds and number of S-boxes in the algorithm. The security and resistance of the algorithm against various attacks are gaged through performance evaluation and security measurements. The audio encryption scheme has the ability to tolerate noise triggered by a channel or induced by an invader. The decryption was successful and the resultant output was audible for noisy data. The overall results depict that the proposed audio encryption scheme contains an excellent cryptographic forte with the minimum computational load. These characteristics allow the algorithm to be a hotspot for modern robust applications.
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Setiyanto, Budi, Risanuri Hidayat, and I. Wayan Mustika. "Picture-Based Multiple-AntennaTechnique for the DVB-T2 Receiver." International Journal of Electronics and Telecommunications 63, no. 3 (August 28, 2017): 261–67. http://dx.doi.org/10.1515/eletel-2017-0035.
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Abstract Deep-fading can decline the quality of the received signal to below threshold, and interrupts the reception-success (generating an outage or time-out). In DVB-T2 (Digital Video Broadcasting Terrestrial Second Generation) receiver, such interruption can be identified from the displayed-picture. Multiple-antenna is one of techniques to mitigate such problem. This paper presents a multiple-antenna method for receiving the DVB-T2 signal. At any time, one of antennas is selected where the selection action is controlled by the recovered-picture. In case of using two antennas, field-measurement was conducted to collect the real data, later used in the simulation of the proposed algorithm. The result showed its capability to increase the portion of cumulative reception-success duration up to approximately 1.53 times with respect to its equivalent single-antenna.
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Andrade, Elizabeth, Nicole Barrett, Mark Edberg, Maria Rivera, Ljubica Latinovic, Matthew Seeger, Ann Goldman-Hawes, and Carlos Santos-Burgoa. "Mortality Reporting and Rumor Generation: An Assessment of Crisis and Emergency Risk Communication following Hurricane María in Puerto Rico." Journal of International Crisis and Risk Communication Research 3, no. 1 (March 9, 2020): 15–48. http://dx.doi.org/10.30658/jicrcr.3.1.2.
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This study assessed the Government of Puerto Rico’s crisis and emergency risk communications following Hurricane María and the post-disaster information environment to identify factors that may have contributed to negative public perceptions of mortality reports. Data included Government of Puerto Rico press releases, press conference audio recordings and Facebook Live transmissions, digital media news and social media commentary, and interviews with Government of Puerto Rico personnel and community stakeholders. Study findings indicate that inadequate crisis communication planning and training, coupled with information gaps and inconsistencies, contributed to rumors around the issue of mortality. As a consequence, the Government of Puerto Rico lost the ability to effectively manage messaging, thus decreasing their credibility, perceived transparency, and public trust. Recommendations regarding future preparedness activities and research are offered.
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Menahil, Anoshia, Waseem Iqbal, Mohsin Iftikhar, Waleed Bin Shahid, Khwaja Mansoor, and Saddaf Rubab. "Forensic Analysis of Social Networking Applications on an Android Smartphone." Wireless Communications and Mobile Computing 2021 (July 22, 2021): 1–36. http://dx.doi.org/10.1155/2021/5567592.
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Smartphone users spend a substantial amount of time in browsing, emailing, and messaging through different social networking apps. The use of social networking apps on smartphones has become a dominating part of daily lives. This momentous usage has also resulted in a huge spike in cybercrimes such as social harassing, abusive messages, vicious threats, broadcasting of suicidal actions, and live coverage of violent attacks. Many of such crimes are carried out through social networking apps; therefore, the forensic analysis of allegedly involved digital devices in crime scenes and social apps installed on them can be helpful in resolving criminal investigations. This research is aimed at performing forensic investigation of five social networking apps, i.e., Instagram, LINE, Whisper, WeChat, and Wickr on Android smart phones. The essential motivation behind the examination and tests is to find whether the data resides within the internal storage of the device or not after using these social networking apps. Data extraction and analysis are carried out using three tools, i.e., Magnet AXIOM, XRY, and Autopsy. From the results of these experiments, a considerable amount of essential data was successfully extracted from the examined smartphone. This useful data can easily be recovered by forensic analysts for future examination of any crime situation. Finally, we analyzed the tools on the basis of their ability to extract digital evidences from the device and their performance are examined with respect to NIST standards.
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Helmy, Noufal. "KOMUNIKASI PEMASARAN KOMPASTV MELALUI MEDIA SOSIAL DALAM PERSAINGAN BISNIS." Communicology: Jurnal Ilmu Komunikasi 7, no. 1 (July 29, 2019): 81–100. http://dx.doi.org/10.21009/communicology.14.05.
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ABSTRACT The large number of television stations present in Indonesia gives its own color in the world of Indonesian broadcasting. KompasTV realizes that the rapid advances in information technology have an impact on the behavior of Indonesian people, especially for KompasTV glass screen lovers. Answering this challenge, KompasTV is present to greet loyal viewers in digital form on various social media. The purpose of this study was to find out how KompasTV marketing communications, using social media in business competition. This study uses new media theory and communication mix theory. The paradigm used is post-positivism with qualitative approaches and case study research methods. The research data collection technique was obtained using interview and observation techniques to the subjects of the KompasTV digital division research, and strengthened by KompasTV social media users. The research results obtained are that KompasTV marketing communication using social media (media mix) can expand its broadcast network, audiences on social media have similarities with KompasTV's target audience on social media, and can provide information to KompasTV social media users in the form of advertising promotions, content news, as well as programs that attract the attention and interest of the audience. In addition, using KompasTV social media wants to invite audiences on social media to switch to watching news content and programs offered by KompasTV both through live streaming and on the KompasTV television screen.
Keywords: Marketing Communication, Social Media, Promotion, Business.
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Наумік-Гладка, Катерина Г. "РОЗВИТОК БЕЗПЕКИ МІЖНАРОДНОЇ ПІДПРИЄМНИЦЬКОЇ ДІЯЛЬНОСТІ ТА ІВЕНТ-ТУРИЗМУ В УМОВАХ ЦИФРОВИХ ТЕХНОЛОГІЙ ТА ПСИХОЛОГІЗАЦІЇ." Bulletin of the Kyiv National University of Technologies and Design. Series: Economic sciences 151, no. 5 (March 30, 2021): 28–37. http://dx.doi.org/10.30857/2413-0117.2020.5.3.
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The article provides insights into the surge of modern digital technologies on the market of digital communications, entertainment and educational services along with identifying the key trends in the development of international entrepreneurship and event business and outlining their further evolution options and perspectives. It is noted that a hallmark of modern entrepreneurship is blending of the commerce sector with the Internet and cyberspace. This challenges the emergence of new business models, contributes to building digital economy, promotes new types of digital products and services and facilitates cyber business development. The findings demonstrate rapid growth of the new sector and a tremendous increase in profits. E-commerce relies on innovative communication and partnership frameworks shared by all stakeholders, as well as on digital promotion strategies. The technology for creating digital reality, artificial intelligence, high speed audio and video conferencing, and instant data transfer is the background to build an environment for business global processes and shape the future of digital world and the digital economy. The twenties of the 21st century have marked the fundamental changes in the nature of event tourism: the beginning of the pandemic era, global climate change, cutting costs with VR technology, etc. In modern realia as never before, the event tourism industry faces a difficult dilemma: either a rapid and most effective transformation, or inevitable stagnation with the loss of markets and valuable personnel that have been cultivated for years. The tourism market globalization has turned into an ideal environment for spreading infections, especially in the context of large-scale biotechnology expanding, actively promoted by global pharmaceutical companies. However, globalization contributes to modern digital technology dissemination, fosters better adaptation to dynamic socioeconomic changes and shaping a global socioeconomic area. The implications for further development of international entrepreneurship and event tourism in the context of digital technologies challenges the need to re-think the fundamental characteristics of international business flows and tourism activities, as well as to transform the content of a tourism concept and the need to spatial movement. It is argued that thanks to modern technology, the event business area moves towards its consumer, and not on the contrary.
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Gan, Jie. "Music Feature Classification Based on Recurrent Neural Networks with Channel Attention Mechanism." Mobile Information Systems 2021 (June 10, 2021): 1–10. http://dx.doi.org/10.1155/2021/7629994.
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With the advancement of multimedia and digital technologies, music resources are rapidly increasing over the Internet, which changed listeners’ habits from hard drives to online music platforms. It has allowed the researchers to use classification technologies for efficient storage, organization, retrieval, and recommendation of music resources. The traditional music classification methods use many artificially designed acoustic features, which require knowledge in the music field. The features of different classification tasks are often not universal. This paper provides a solution to this problem by proposing a novel recurrent neural network method with a channel attention mechanism for music feature classification. The music classification method based on a convolutional neural network ignores the timing characteristics of the audio itself. Therefore, this paper combines convolution structure with the bidirectional recurrent neural network and uses the attention mechanism to assign different attention weights to the output of the recurrent neural network at different times; the weights are assigned for getting a better representation of the overall characteristics of the music. The classification accuracy of the model on the GTZAN data set has increased to 93.1%. The AUC on the multilabel labeling data set MagnaTagATune has reached 92.3%, surpassing other comparison methods. The labeling of different music labels has been analyzed. This method has good labeling ability for most of the labels of music genres. Also, it has good performance on some labels of musical instruments, singing, and emotion categories.
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Motuz, Tetiana, Liubov Pasichnyk, and Yana Baranets Yana. "INFORMATION AND COMMUNICATION TECHNOLOGIES IN THE INCLUSIVE ENVIRONMENT OF THE EDUCATIONAL INSTITUTION." Collection of Scientific Papers of Uman State Pedagogical University, no. 2 (June 24, 2021): 172–81. http://dx.doi.org/10.31499/2307-4906.2.2021.236702.
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The article raises the issue of application of information and communication technologies in the inclusive environment of the educational institution. It is proved that such an environment is formed as a result of an individual adaptation of educational programs, as well as with the use in the educational process of information and communication technologies that allow the perception and transmission of educational information in an accessible form for all students. The purpose of the article is to substantiate the relevance and features of the use of information and communication technologies in an inclusive educational environment of the educational institution. In the process of scientific research we used the following research methods: analysis, synthesis, generalization, systematization. Results of the research. The key ways in which information and communication technologies can support educational opportunities for people with disabilities are as follows: determining the previous level of personal development (skills and abilities); providing assistance in personal development, forming new skills or updating existing ones; improving access to information; overcoming geographical or social isolation through digital communications; increase motivation and awareness of the benefits of information and communication technologies. It is determined that the main types of information and communication technology used to teach children with special educational needs are: standard technologies (for example, computers with built-in settings for people with special educational needs); available data formats, also known as alternative formats (for example, available HTML, say books DAISY system (Digital Accessibility Information System ‒ electronic accessible information system), as well as “low-tech” formats such as Braille; assistive technologies: hearing aids, screen readers, keyboards, etc. Assistive technologies are devices, products, equipment, software, or services designed to enhance, support, or improve the functionality of people with disabilities. Taking into account the didactic capabilities of information and communication technologies, as well as the needs and demands of inclusive education, three key functions that perform information and communication technologies in inclusive education are formulated: compensatory, didactic, communication. Necessary conditions for the introduction of information and communication technologies in the educational process are the availability of material and system-technical support, as well as the availability of appropriate professional competencies of teachers.
Keywords: information and communication technologies, inclusive education, inclusive environment, audio lecture, audio simulator, compensatory function, standard technologies, auxiliary technologies.
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Gonzalez, Gilbert. "DIVIDE OR CONVERGE?" Muma Case Review 1 (2016): 1–23. http://dx.doi.org/10.28945/3581.
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Gilbert Gonzalez, founder and CEO of Mission Critical Solutions (MCS), was reflecting on the path forward for his company. MCS maintained and updated a five-year strategic plan each year since its inception in 1990. In the early years, the strategic plan focused on the key strategic factors (KSFs) and resulted in a narrow mission. Year after year, that focus on the KSFs was rewarded by the market. Doing the most important things well kept the organization focused and efficient. The consistently evolving mission of the organization necessitated adding new products, services, and solutions. In the early 1990s, deploying PCs, implementing local area networks (LANs), and providing onsite support met the challenges their customers faced. A few years later, the company’s clients’ needs led to the addition of a Wide Area Network (WAN) solution to aggregate offices and link applications. By 1996, information technologies (IT) and telecommunications began to converge. Common structured cable plants and digital trunks sharing voice and data traffic were new and mandatory elements of the clients’ solutions. Subtly, the technologies evolved and converged. Internet Protocol (IP) Telephony and Unified Communications converged onto the clients’ LAN/WAN networks. It was clear that most technology would speak IP in the future. In the early 2000s, building automation, audio video (AV), security, surveillance, and control system endpoints converged onto the network. The trend of unusual devices converging onto the network, also known as “the Internet of things,” will continue. Wireless innovations and mobility meant that technology could move not just around the facility, but also around the world. For MCS, the end result of this phenomenon was a group of specialized departments and teams: information technologies, passive cabling systems, electrical systems, building automation and controls, audio video, security and surveillance, and unified communications. All of these departments, staffed 200 associates strong, were coordinated by the project management team, and collaborated to meet the requirements of the company’s clients. Thus, the marketing elevator speech for MCS required a tall building! Their clients expressed surprise and confusion at the breadth of services offered. While the devices had converged, the clients’ perception of their vendors and providers had not. The question at hand was whether MCS should stay converged in a functional organization strategy with capability-based teams, or organize into separate standalone entities with unique identities and separate overheads, focusing more on the individual capability-based technology specialization.
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Oktavianti, Roswita, and Riris Loisa. "EKOLOGI MEDIA DALAM PELIPUTAN KEBERAGAMAN JURNALIS TELEVISI KONTRIBUTOR AMBON." Jurnal Muara Ilmu Sosial, Humaniora, dan Seni 5, no. 1 (April 30, 2021): 277. http://dx.doi.org/10.24912/jmishumsen.v5i1.10179.2021.
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Media ecology reflects that mass media have to move dynamically to survive its life in the middle of media pressure and competition among other platforms. In the digital era, television as conventional media needs to embrace the technology by airing diversity issues in social media Youtube. This study has a question about media ecology in the reportage of diversity issues by television journalists in Ambon. This research using a mixed method approach, quantitative and qualitative, with content analysis, FGD, interview, and literature review as a technique for data collecting. Content analysis is conducted toward news diversity about Maluku which aired on the Youtube television channel. Then FGD is conducted further with television journalists in Ambon in which their news has been analyzed. Further, the interview is conducted with a broadcasting supervisor as well as a member of the journalist organization. This study finds that media ecology has been changing to new media ecology. Nevertheless, new media ecology is not fully implemented by television journalists in Ambon when reporting the diversity issues. The journalists will frame their news before report it mainly for news with the tendency to the SARA (ethnicity, religion, and race) issues. Framing is formed when journalists narrate their news before aired. It implemented due to their conflict experienced in the past. The journalists have responsibility and awareness in terms of the effect of their news. Their SARA’s news which aired in the Youtube platform could trigger conflict. The conflict has a huge impact on their personal and social life Ekologi media merefleksikan bahwa media massa harus bergerak dinamis untuk bertahan hidup di tengah tekanan dan kompetisi dengan berbagai platform. Di era digital, televisi sebagai media konvensional merangkul teknologi dengan menayangkan berita keberagaman di media sosial YouTube. Studi ini mengangkat tentang ekologi media dalam peliputan keberagaman jurnalis televisi kontributor Ambon. Peneliti menggunakan pendekatan penelitian campuran, kuantitatif dan kualitatif, dengan teknik pengumpulan data analisis isi, Focus Group Discussion (FGD), wawancara, dan studi pustaka. Analisis isi dilakukan pada berita-berita keberagaman di Maluku pada saluran Youtube televisi-televisi nasional. Selanjutnya dilakukan FGD dengan jurnalis televisi kontributor Ambon di mana berita-berita yang ditayangkan telah dianalisis sebelumnya. Wawancara dilakukan dengan pengawas penyiaran dan organisasi jurnalis televisi. Studi ini menemukan bahwa ekologi media beralih menjadi ekologi media baru. Namun, ekologi media baru ini tidak sepenuhnya diikuti oleh jurnalis televisi kontributor Ambon dalam melaporkan berita keberagaman. Jurnalis televisi kontributor Ambon melakukan pembingkaian ketika melaporkan berita keberagaman, khususnya berita bernuansa SARA. Pembingkaian dilakukan lebih pada narasi atau audio berita yang disajikan. Ini dilakukan karena Provinsi Maluku pernah mengalami konflik masa lalu. Jurnalis memiliki tanggung jawab dan kesadaran tinggi bahwa sejumlah peristiwa konflik terjadi salah satunya akibat berita bernuansa SARA yang tersebar luas di Youtube. Konflik tersebut telah membawa pengaruh besar dalam kehidupan pribadi dan bermasyarakat.
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Zaluzec, Nestor J. "Tele-Presence Microscopy/LabSpace: An Interactive Collaboratory for use in Education and Research." Proceedings, annual meeting, Electron Microscopy Society of America 54 (August 11, 1996): 382–83. http://dx.doi.org/10.1017/s0424820100164374.
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Computerized control of scientific instrumentation has been successfully implemented in recent years to facilitate the indirect operation or remote observation of a wide variety of equipment including the full range of electron microscopes. The concept is, however, usually applied in it’s simplest sense, namely-the direct one-to-one functional replacement of “local operation” of equipment by a remote workstation. While the microscope is clearly central to the our research, real collaboration will not be achieved simply by creating a networked interface to a microscope for remote scientists. This is merely a simple exercise in computer programming and digital control. For true distributed collaboration (either in research and/or teaching) to be successful, all of the aspects of the research/teaching environment must be considered. For example, the investigators must be able to talk to and see each other while running an instrument, and they should be able to do everything else they would normally do if they were in the same laboratory. This includes sharing experimental data, review previous experiments, write papers, talk over coffee and even visiting each other in their office to plan current and/or future work. The TelePresence Microscopy (TPM) /LabSpace project attempts to bridge the gap between simple “remote microscopy” and true collaboration, by integrating protocols, tools, and interactive links to instrumentation, data (real-time as well as archived), and audio-visual communications. The initial goal of this project has been to create a virtual space, accessible via the Internet, where microscopists and their colleagues, who are distributed across the nation or the world, can meet, talk, plan their research, and also run their experiments.
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Hadi, Ido Prijana. "Pengguna Media Interaktif Sebagai Kenyataan Maya: Studi Resepsi Khalayak Suarasurabaya.net Sebagai Media Interaktif." Jurnal ASPIKOM 1, no. 3 (July 15, 2011): 231. http://dx.doi.org/10.24329/aspikom.v1i3.22.
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My aim in writing this paper is to describe that in this fast-changing world, media in Indonesia has undergone a rapid transformation. Digital technology continues to reshape the mass media landscape using internet technology. Internet brings a technical communication revolution, a fundamental change takes place in the structure of connections, artificial memories and the reproduction of their content. Internet technology has made communication much easier and less expensive. It has attracted many people and has penetrated into people’s daily lives. The mass media also have accepted the internet. Almost all forms of traditional media (old media) in local media, such as radio, television, and newspaper have extended their work into this new field. The internet and the World Wide Web have both significantly influenced modern journalism.
In online media allows readers to enjoy browsing their product and service of contents, such as news feed, podcasts, desktop alert, news on mobile phones, PDA and others mobile devices. Online media offer not only text but also digital images , audio file, moving images (video), internet radio and internet t v. The interactive features of the internet seemingly imply that online media have more advantages than traditional media forms (old media). So, the internet have dramatically evolved become new media with characteristic multimedia, hypertext, interactivity, archives , and virtuality. The most important structural new media characteristic is the integration of telecommunications, data communications and mass communication in a single medium – it is the convergence. It should be pointed out that the trend toward digital is affecting the various media and brings the local media in East Java to become a global media, where breaking news from Surabaya or anywhere in East Java is transmitted to around the world in a matter of minutes .
The research was carried out to find out how user reception on convergence media, journalism and local media on the site of SuaraSurabaya.net and how to access subjective meanings that they have created based on t heir understanding on online media so far. The research is also interested in looking into user reception on information and communication technology based on its relevance with the selected theme namely discourses on global media in website of Radio Suara Surabaya.
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Kukharska, N. "PROGRAM IMPLEMENTATION OF ALGORITHMS OF HIDING OF INFORMATION BY METHODS OF A RANDOM INTERVAL." Bulletin of Lviv State University of Life Safety, no. 18 (December 31, 2018): 41–48. http://dx.doi.org/10.32447/20784643.18.2018.03.
Full textAbstract:
At the current stage of the development of information systems and technologies, global computer systems and multimedia tools, as never before, there is an urgent need to ensure the reliability, security of storage of digital data and their transmission through open channels of information communications.
One of the most promising and popular approaches to solving this problem is based on the applying of computer steganography methods.
The purpose of the article is systematizing information about methods of textual steganography, namely methods of arbitrary intervals, carrying out a comparative bandwidth analysis.
Methods of research - methods of textual steganography: the method of double spaces between words, the method of changing the space code, the method of changing the number of spaces at the end of text strings, the method of changing the number of spaces between words aligned to the width of the text.
Methods of arbitrary interval are used to hide the data in the free space in the text. They use intervals between sentences, spaces at the end of text strings, intervals between words in the text, including those, which are aligned in width, manipulate symbols of spaces, which have different ASCII codes. They are used to organize secret transmission of confidential information through open communication channels.
In the article, on the basis of the software complexes developed in the environment of the computer algebra MathCAD, the steganographic transformations, which consistent with the algorithms of the methods, are sequentially tracked.
The question of the bandwidth of the constructed steganosystems was considered.
Bandwidth is the maximum amount of additional information that can be embedded in one element (symbol) of the text container.
So, the bandwidth of the double-space method between words and the method of changing the space code in the case of the Ukrainian-language text container is 1.75%. The method of changing the number of spaces between aligned by the width of the text of the words has a lower bandwidth of 0.4%. The bandwidth of the method of changing the number of spaces at the end of the text strings depends on the difference between the number of symbols in the longest line and all other lines.
The article also outlines the advantages and disadvantages of each method.
Conclusions. The arbitrary interval methods are effective provided that the text is presented in ASCII format. In general, text files are "inconvenient" containers. They lack redundancy in comparison, for example, with graphic or audio files.
For such arbitrary interval methods as a method of changing the space code, the method of changing the number of spaces at the end of the text strings is characterized by the fact that the hidden data can not be obtained from a hard copy of the text file.
Despite the drawbacks, arbitrary interval methods have reason to be applied because of the prevalence of text file files. Users of computer networks are constantly exchanging text messages. This is a routine everyday action, so text files, even those, which contain hidden confidential information, should not cause unnecessary interest among outsiders.