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Relevant bibliographies by topics / Codec AMR-WB+

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Academic literature on the topic 'Codec AMR-WB+'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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Journal articles on the topic "Codec AMR-WB+"

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Li, Feng Lian, Xue Ying Zhang, and Xiao Lin Du. "Real-Time Implementation AMR-WB Algorithm in TMS320VC5509A DSP." Advanced Materials Research 490-495 (March 2012): 519–23. http://dx.doi.org/10.4028/www.scientific.net/amr.490-495.519.

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Adaptive multi-rate wideband (AMR-WB) speech codec is the first standard for both wired and wireless universal broadband speech codec. Real-time implementation of AMR-WB algorithm in DSP has important practical significance and will accelerate its course of practice. The paper first designed the hardware platform and system software structure for real-time implementation of the AMR-WB algorithm, then introduced the transplantation of AMR-WB algorithm to the designed hardware system. The paper next discussed the real-time implementation of optimized algorithm on the hardware platform. Objective

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Bessette, B., R. Salami, R. Lefebvre, et al. "The adaptive multirate wideband speech codec (AMR-WB)." IEEE Transactions on Speech and Audio Processing 10, no. 8 (2002): 620–36. http://dx.doi.org/10.1109/tsa.2002.804299.

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Zhang, Chun Ling, Sheng Hui Zhao, Hong Yuan Xiao, Jing Wang, and Jing Ming Kuang. "An Improved Method for AMR-WB Speech Codec." Advanced Materials Research 756-759 (September 2013): 1259–63. http://dx.doi.org/10.4028/www.scientific.net/amr.756-759.1259.

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an improved method is proposed to skip the look-ahead period in this paper. The improved method uses the autocorrelation algorithm to calculate the Linear Prediction (LP) coefficients and then the LP coefficients are employed to extrapolate new samples for replacing the look-ahead samples. To evaluate the quality of this method, perceptual evaluation of speech quality (PESQ) and the A/B listening test method are designed for the objective evaluation and subjective evaluation. The reconstructed quality of the modified method is near to the original AMR codec, at the same time, the delay of the

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Xiang, Kai, Shihong Chen, and Yuanyuan Zeng. "Improved Frame Error Concealment Algorithm Based on Transform- Domain Mobile Audio Codec." Open Electrical & Electronic Engineering Journal 8, no. 1 (2014): 527–35. http://dx.doi.org/10.2174/1874129001408010527.

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In this paper, we propose an improved frame error concealment algorithm for TCX-based audio coders in order to improve the quality of decoded audio at the receiver. Conventional TCX-based frame error concealment algorithms in the AMR-WB+ audio codec are usually unable to adaptively adjust gain control according to changes in the magnitude of the correct frame before lost frames. Thus, we propose a new gain control approach based on stability of LPC filter, and the stream data need to contain the line spectrum frequency data and utilize different continuous attenuation factor formula based on d

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Yeh, Cheng-Yu, and Hung-Hsun Huang. "An Upgraded Version of the Binary Search Space-Structured VQ Search Algorithm for AMR-WB Codec." Symmetry 11, no. 2 (2019): 283. http://dx.doi.org/10.3390/sym11020283.

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Adaptive multi-rate wideband (AMR-WB) speech codecs have been widely used for high speech quality in modern mobile communication systems, e.g., handheld mobile devices. Nevertheless, a major handicap is that a remarkable computational load is required in the vector quantization (VQ) of immittance spectral frequency (ISF) coefficients of an AMR-WB coding. In view of this, a two-stage search algorithm is presented in this paper as an efficient way to reduce the computational complexity of ISF quantization in AMR-WB coding. At stage 1, an input vector is assigned to a search subspace in an effici

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Boumaraf, Messaouda, and Fatiha Merazka. "Secure Speech Transmission Using Chaos Encryption System for AMR-WB Codec." International Journal of Chaotic Computing 5, no. 1 (2017): 118–26. http://dx.doi.org/10.20533/ijcc.2046.3359.2017.0015.

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Byun, Kyung Jin, Ik Soo Eo, Hee Bum Jeong, and Minsoo Hahn. "An Embedded ACELP Speech Coding Based on the AMR-WB Codec." ETRI Journal 27, no. 2 (2005): 231–34. http://dx.doi.org/10.4218/etrij.05.0204.0067.

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He, Junhui, Junxi Chen, Shichang Xiao, Xiaoyu Huang, and Shaohua Tang. "A Novel AMR-WB Speech Steganography Based on Diameter-Neighbor Codebook Partition." Security and Communication Networks 2018 (2018): 1–11. http://dx.doi.org/10.1155/2018/7080673.

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Steganography is a means of covert communication without revealing the occurrence and the real purpose of communication. The adaptive multirate wideband (AMR-WB) is a widely adapted format in mobile handsets and is also the recommended speech codec for VoLTE. In this paper, a novel AMR-WB speech steganography is proposed based on diameter-neighbor codebook partition algorithm. Different embedding capacity may be achieved by adjusting the iterative parameters during codebook division. The experimental results prove that the presented AMR-WB steganography may provide higher and flexible embeddin

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Yeh, Cheng-Yu. "An efficient search algorithm for ISF vector quantization in AMR-WB speech codec." IEEJ Transactions on Electrical and Electronic Engineering 11, no. 6 (2016): 829–31. http://dx.doi.org/10.1002/tee.22310.

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Yao, Bing-Jhih, Cheng-Yu Yeh, and Shaw-Hwa Hwang. "A Search Complexity Improvement of Vector Quantization to Immittance Spectral Frequency Coefficients in AMR-WB Speech Codec." Symmetry 8, no. 10 (2016): 104. http://dx.doi.org/10.3390/sym8100104.

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Dissertations / Theses on the topic "Codec AMR-WB+"

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Marty, Amélie. "Débit variable contrôlé par la source pour le codec audio AMR-WB+." [S.l. : s.n.], 2007.

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Marty, Amélie. "Débit variable contrôlé par la source pour le codec audio AMR-WB+." Mémoire, Université de Sherbrooke, 2007. http://savoirs.usherbrooke.ca/handle/11143/1399.

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Le codage audio à bas débits est un enjeu majeur dans les télécommunications. En effet, avec l'accroissement du nombre d'usagers et la diversification des types de communications, les codeurs doivent désormais encoder n'importe quel type de signal à bas débits avec une excellente qualité.Le standard AMR-WB+ est un codeur hybride alliant à la fois la technologie ACELP pour le codage de la parole et un codeur TCX spécialisé dans le codage de l'audio. Ce codeur multi-débits autorise les changements de débits à chaque trame. Cependant, il ne peut être considéré comme un codeur à débit variable con

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Ali, Hazem, and Mohammad Nazrul Ishlam Patoary. "Design and Implementation of an Audio Codec (AMR-WB) using Dataflow Programming Language CAL in the OpenDF Environment." Thesis, Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-4517.

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<p>Over the last three decades, computer architects have been able to achieve an increase in performance for single processors by, e.g., increasing clock speed, introducing cache memories and using instruction level parallelism. However, because of power consumption and heat dissipation constraints, this trend is going to cease. In recent times, hardware engineers have instead moved to new chip architectures with multiple processor cores on a single chip. With multi-core processors, applications can complete more total work than with one core alone. To take advantage of multi-core processors,

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Lakhdhar, Khaled. "Encodage entropique des indices binaires d'un quantificateur algébrique encastré." Mémoire, Université de Sherbrooke, 2009. http://savoirs.usherbrooke.ca/handle/11143/1526.

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Ce mémoire propose un algorithme de compression sans perte des indices binaires d'un quantificateur algébrique encastré utilisé par le codec AMR-WB+ pour encoder certaines des trames d'un signal audio. Une étude détaillée des statistiques a été menée dans le but de développer un algorithme efficace de compression et réduire par conséquent la longueur moyenne du code binaire utilisé par le codec AMR-WB+. En se basant sur cette étude des statistiques, deux techniques ont été combinées : l'encodage par plage et l'encodage par contexte qui se sont montrés très efficaces pour estimer les probabilit

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Tsai, Jr-Wei, and 蔡智偉. "Speech Transmission using AMR-WB Speech codec and Turbo channel coding." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/j357k3.

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碩士<br>國立臺北科技大學<br>電機工程系所<br>96<br>In this thesis, we adopt the Adaptive Multi-Rate Wideband (AMR-WB) codec initiated by the Third Generation Partnership Project (3GPP) and European Telecommunication Standards Institute (ETSI) as the source encoder. Because in our environment there exits all kinds of noises that affect the quality of communication, we have to promote the reliability of the communication by using channel protecting mechanisms. Furthermore, it is helpful to exploit the concept of Source-Controlled Channel Decoding (SSCD) that would increase the accuracy of channel decoding by con

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Book chapters on the topic "Codec AMR-WB+"

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Jatin, D., T. S. Sheshadri, N. Ramesh, and H. K. Muttanna. "Stability Analysis of Speech Synthesis Filter of CELP-Based AMR-WB Codec." In Lecture Notes in Electrical Engineering. Springer India, 2013. http://dx.doi.org/10.1007/978-81-322-1157-0_18.

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Merazka, Fatiha. "Wideband Speech Encryption Based Arnold Cat Map for AMR-WB G.722.2 Codec." In Lecture Notes in Computer Science. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-07998-1_75.

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Conference papers on the topic "Codec AMR-WB+"

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Senapati, Rajiv, and Hemanta Kumar Pati. "VoLTE Cell Capacity Estimation Using AMR-WB Codec." In 2018 International Conference on Advances in Computing, Communications and Informatics (ICACCI). IEEE, 2018. http://dx.doi.org/10.1109/icacci.2018.8554462.

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Zhang, Chunling, Shenghui Zhao, Hongyuan Xiao, Jing Wang, and Jingming Kuang. "An improved method for AMR-WB speech codec." In 2nd International Conference on Computer and Information Applications (ICCIA 2012). Atlantis Press, 2012. http://dx.doi.org/10.2991/iccia.2012.118.

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Kaniewska, Magdalena, Stephane Ragot, Zexin Liu, et al. "Enhanced AMR-WB bandwidth extension in 3GPP EVS codec." In 2015 IEEE Global Conference on Signal and Information Processing (GlobalSIP). IEEE, 2015. http://dx.doi.org/10.1109/globalsip.2015.7418277.

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Boumaraf, Messaouda, and Fatiha Merazka. "Speech Encryption Based on 5D Hyperchaotic System for AMR-WB Codec." In 2019 6th International Conference on Image and Signal Processing and their Applications (ISPA). IEEE, 2019. http://dx.doi.org/10.1109/ispa48434.2019.8966804.

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Platenka, Vaclav, Antonin Mazalek, and Zuzana Vranova. "The Transfer of Hidden Information in Data in the AMR-WB Codec." In 2019 Communication and Information Technologies (KIT). IEEE, 2019. http://dx.doi.org/10.23919/kit.2019.8883461.

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Dehury, Mohan Kumar, and Hemanta Kumar Pati. "Impact of AMR-WB Codec on VoLTE Call Blocking in Cellular LTE Network." In 2021 8th International Conference on Smart Computing and Communications (ICSCC). IEEE, 2021. http://dx.doi.org/10.1109/icscc51209.2021.9528203.

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Hubschen, Tobias, and Gerhard Schmidt. "Bitrate and Tandem Detection for the AMR-WB Codec with Application to Network Testing." In 2018 26th European Signal Processing Conference (EUSIPCO). IEEE, 2018. http://dx.doi.org/10.23919/eusipco.2018.8553360.

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Boumaraf, Messaouda, and Fatiha Merazka. "Speech encryption based on hybrid chaotic key generator for AMR-WB G.722.2 codec." In 2017 12th International Conference for Internet Technology and Secured Transactions (ICITST). IEEE, 2017. http://dx.doi.org/10.23919/icitst.2017.8356353.

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Albin, Aaron, and Elliot Moore. "Objective study of the performance degradation in emotion recognition through the AMR-WB+ codec." In Interspeech 2015. ISCA, 2015. http://dx.doi.org/10.21437/interspeech.2015-328.

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Afrizal, Gaous, and Hendrawan. "Impact of Random and Burst Packet Loss on Voice Codec G.711, G.722, G.729, AMR-NB, AMR-WB." In 2018 4th International Conference on Wireless and Telematics (ICWT). IEEE, 2018. http://dx.doi.org/10.1109/icwt.2018.8527812.

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Reports on the topic "Codec AMR-WB+"

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Sjoberg, J., M. Westerlund, A. Lakaniemi, and S. Wenger. RTP Payload Format for the Extended Adaptive Multi-Rate Wideband (AMR-WB+) Audio Codec. RFC Editor, 2006. http://dx.doi.org/10.17487/rfc4352.

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Sjoberg, J., M. Westerlund, A. Lakaniemi, and Q. Xie. RTP Payload Format and File Storage Format for the Adaptive Multi-Rate (AMR) and Adaptive Multi-Rate Wideband (AMR-WB) Audio Codecs. RFC Editor, 2007. http://dx.doi.org/10.17487/rfc4867.

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Sjoberg, J., M. Westerlund, A. Lakaniemi, and Q. Xie. Real-Time Transport Protocol (RTP) Payload Format and File Storage Format for the Adaptive Multi-Rate (AMR) and Adaptive Multi-Rate Wideband (AMR-WB) Audio Codecs. RFC Editor, 2002. http://dx.doi.org/10.17487/rfc3267.

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