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Relevant bibliographies by topics / Digital hearing instruments

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Journal articles
Dissertations / Theses
Books
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Academic literature on the topic 'Digital hearing instruments'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 February 2022

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Journal articles on the topic "Digital hearing instruments"

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Hamacher, Volkmar, and Inga Holube. "Noise reduction algorithms for digital hearing instruments." Journal of the Acoustical Society of America 105, no. 2 (February 1999): 1210–11. http://dx.doi.org/10.1121/1.425695.

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Crukley, Jeffery, and Susan D. Scollie. "The Effects of Digital Signal Processing Features on Children's Speech Recognition and Loudness Perception." American Journal of Audiology 23, no. 1 (March 2014): 99–115. http://dx.doi.org/10.1044/1059-0889(2013/13-0024).

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PurposeThe purpose of this study was to determine the effects of hearing instruments set to Desired Sensation Level version 5 (DSL v5) hearing instrument prescription algorithm targets and equipped with directional microphones and digital noise reduction (DNR) on children's sentence recognition in noise performance and loudness perception in a classroom environment.MethodTen children (ages 8–17 years) with stable, congenital sensorineural hearing losses participated in the study. Participants were fitted bilaterally with behind-the-ear hearing instruments set to DSL v5 prescriptive targets. Sentence recognition in noise was evaluated using the Bamford–Kowal–Bench Speech in Noise Test (Niquette et al., 2003). Loudness perception was evaluated using a modified version of the Contour Test of Loudness Perception (Cox, Alexander, Taylor, & Gray, 1997).ResultsChildren's sentence recognition in noise performance was significantly better when using directional microphones alone or in combination with DNR than when using omnidirectional microphones alone or in combination with DNR. Children's loudness ratings for sounds above 72 dB SPL were lowest when fitted with the DSL v5 Noise prescription combined with directional microphones. DNR use showed no effect on loudness ratings.ConclusionUse of the DSL v5 Noise prescription with a directional microphone improved sentence recognition in noise performance and reduced loudness perception ratings for loud sounds relative to a typical clinical reference fitting with the DSL v5 Quiet prescription with no digital signal processing features enabled. Potential clinical strategies are discussed.

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Frye, George J. "El examen del audífono digital." Auditio 1, no. 2 (September 15, 2021): 25–29. http://dx.doi.org/10.51445/sja.auditio.vol1.2002.0012.

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Entre los profesionales dedicados a la adaptación protésica existe la idea generalizada de que la respuesta de los audífonos digitales no puede ser examinada. Esta idea es errónea toda vez que disponemos de la tecnología para poder llevar acabo estos estudios. En este artículo presentamos la metodología necesaria para el examen de audífonos digitales mediante el uso de señales de tonos puros y compuestos. Esta metodología permite el análisis de forma interactiva de la respuesta de los filtros de reducción de ruido característicos de los audífonos digitales. Así mimo se lleva a cabo una revisión del análisis de las respuestas mediante el uso de técnicas de espectografía.Traducido con autorización del autor por Franz Zenker. Referencia original del artículo: Frye GJ. Testing Digital Hearing Instruments [en linea]. Hearing Review. 13 link

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Newman, Craig W., and Sharon A. Sandridge. "Benefit From, Satisfaction With, and Cost-Effectiveness of Three Different Hearing Aid Technologies." American Journal of Audiology 7, no. 2 (October 1998): 115–28. http://dx.doi.org/10.1044/1059-0889(1998/021).

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Clinical decision-making has become more complex as newer, more costly, hearing aid (HA) technologies become available. The expanding array of more expensive HAs demands that clinical researchers continue to justify the value of these instruments relative to the substantial increase in cost to both the provider and consumer. In the present report, 25 current conventional HA users with adult onset of sensorineural hearing loss were fitted with: (a) a one-channel linear HA; (b) a two-channel, nonlinear HA; and (c) a seven-band, two-channel digital signal processing (DSP) HA. All instruments were mini behind-the-ear units with identifying information removed from the cases. Subjects wore each HA for at least a 1-month period. A set of laboratory (Speech Perception in Noise [SPIN] test; audibility index calculated from real-ear measurements) and self-report (Abbreviated Profile of Hearing Aid Benefit; Hearing Handicap Inventory for the Elderly/Adults; Knowles Hearing Aid Satisfaction Survey; preference ratings) outcome measures were used to evaluate the benefit from, satisfaction with, and cost-effectiveness of each test HA. As expected, there were statistically significant differences between unaided and aided conditions across HAs. Although the DSP instrument yielded significantly higher word recognition scores on the SPIN test, no differences were observed among the test HAs for the standardized self-report measures. In contrast, however, more than 75% of the subjects preferred the “higher end” instruments. Yet, 33% of the subjects changed their preference for the “higher end” instruments after being informed of costs. A cost-effectiveness model for evaluating the relationship between HA retail purchase price and improvements in performance/benefit is presented.

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Kreisman, Brian M., Annette G. Mazevski, Donald J. Schum, and Ravichandran Sockalingam. "Improvements in Speech Understanding With Wireless Binaural Broadband Digital Hearing Instruments in Adults With Sensorineural Hearing Loss." Trends in Amplification 14, no. 1 (March 2010): 3–11. http://dx.doi.org/10.1177/1084713810364396.

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Mudry, Albert, and Léon Dodelé. "History of the technological development of air conduction hearing aids." Journal of Laryngology & Otology 114, no. 6 (June 2000): 418–23. http://dx.doi.org/10.1258/0022215001905977.

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This was a study of the history of the technological development of air conduction hearing aids, and a review of international literature on the subject. The technological evolution of amplification devices, from their origin to the present day, can be divided into seven distinct periods: the period of sound collectors, the period of hearing devices constructed from carbon, the period of vacuum tubes, the transistor period, the period of integrated circuits, the microprocessor period and the period of digital hearing instruments. Throughout these different stages, hearing instruments have progressively developed reaching their present state.The current era is itself undergoing constant development and change. With the introduction of new technologies, we expect that the rate of change will increase rapidly in the future.

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Preves, David A. "Flexibility in Frequency Response Shaping and Signal Processing With Analog Hearing Aids." American Journal of Audiology 2, no. 2 (July 1993): 29–40. http://dx.doi.org/10.1044/1059-0889.0202.29.

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Mainly because of packaging size limitations, most amplifiers for in-the-ear (ITE) and in-the-canal (ITC) hearing aids have performed linear processing and had a class A output stage. Recent advances in the miniaturization of analog semiconductor technology have made it possible to package much more sophisticated signal processing circuitry and push-pull and class D output stages in ITE and ITC hearing aids. These advancements have been used in hearing aids to improve sound quality, enhance the speech signal to emphasize weak consonants, provide increased flexibility in frequency response shaping, and reduce the amplification of undesired noise. Although digital programmability offers increased flexibility in hearing aid fittings, in most programmable hearing aid designs it is the analog portion of the circuit rather than the digital portion that performs the signal processing functions. Although "true" digital signal processing holds promise for further dramatic improvements in hearing aid performance, the capabilities of analog electronics are just beginning to be exploited. Through advances in low-voltage CMOS circuitry, analog ITE and even ITC hearing aids are now being made with multiband amplifiers that have relatively steep filter slopes. These small, nonprogrammable hearing instruments are essentially master hearing aids for frequency response shaping that require only a few potentiometers and an ordinary screw-driver for adjustment. Consequently, analog circuitry should not be totally abandoned as yet in favor of digital circuitry.

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Kim, Jin Sook, and Chun Hyeok Kim. "A Review of Assistive Listening Device and Digital Wireless Technology for Hearing Instruments." Korean Journal of Audiology 18, no. 3 (2014): 105. http://dx.doi.org/10.7874/kja.2014.18.3.105.

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Blamey, Peter J., Lois F. A. Martin, and Hayley J. Fiket. "A Digital Processing Strategy to Optimize Hearing Aid Outputs Directly." Journal of the American Academy of Audiology 15, no. 10 (November 2004): 716–28. http://dx.doi.org/10.3766/jaaa.15.10.6.

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A new amplification strategy (ADRO™), based on 64 independently operating channels, was compared with a nine-channel wide dynamic range compression strategy (WDRC). Open-platform in-the-ear hearing instruments were configured either with ADRO or the manufacturer's WDRC strategy. Twenty-two subjects with mild to moderate hearing loss took home the ADRO or WDRC hearing aids. After three weeks' acclimatization, the aids were evaluated using monosyllables in quiet at 50 to 65 dB SPL and sentences in eight-talker babble. The acclimatization and evaluation were repeated in the second phase of the balanced reverse-block blind experimental design. The ADRO program showed a statistically significant mean advantage of 7.85% word score (95% confidence interval 3.19% to 12.51%; p = 0.002) and 6.41% phoneme score for the monosyllables in quiet (95% confidence interval 2.03% to 10.79%; p = 0.006). A statistically significant advantage of 7.25% was also found for the ADRO program in background noise (95% confidence interval 1.95% to 12.55%; p = 0.010). The results are consistent with earlier data for listeners with moderate to severe hearing loss.

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Hockley, Neil S., Frauke Bahlmann, and Bernadette Fulton. "Analog-to-Digital Conversion to Accommodate the Dynamics of Live Music in Hearing Instruments." Trends in Amplification 16, no. 3 (September 2012): 146–58. http://dx.doi.org/10.1177/1084713812471906.

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Dissertations / Theses on the topic "Digital hearing instruments"

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Reyneke, Michelle. "A comparison of two non-linear prescriptive methods used with digital hearing instrument fittings in children." Diss., Pretoria : [s.n.], 2004. http://upetd.up.ac.za/thesis/available/etd-02112005-091556.

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Books on the topic "Digital hearing instruments"

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service), SpringerLink (Online, ed. Digital Sonar Design in Underwater Acoustics: Principles and Applications. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012.

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Li, Qihu. Digital Sonar Design in Underwater Acoustics: Principles and Applications. Springer, 2012.

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Book chapters on the topic "Digital hearing instruments"

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Sterne, Jonathan. "The Software Passes the Test When the User Fails It." In Testing Hearing, 159–86. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780197511121.003.0007.

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Many music technologists have sought to reproduce the sonic signature of analog audio devices—amplifiers, compressors, signal processors, instruments—in the software domain. Assessing the effectiveness of the analog model involves a confusing mix of math, sound, electronics, appearances, and feelings, all of which are negotiated differently by users and designers. Drawing on ethnographic research at major software companies, along with close analysis of the technologies themselves, this chapter argues that “analog modeling” in the digital domain is one of the latest chapters in the long history of hearing tests, for it is in the moment of the listening test that engineers and users attempt to resolve competing epistemologies of sound. The listening test thus offers a privileged point of entry into both the classification and the experience of digital sound technologies.

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Conference papers on the topic "Digital hearing instruments"

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Berg, Christian. "Widening the scope of digital signal processing in hearing instruments." In Proceedings of ICASSP '02. IEEE, 2002. http://dx.doi.org/10.1109/icassp.2002.5745537.

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Berg. "Widening the scope of digital signal processing in hearing instruments." In IEEE International Conference on Acoustics Speech and Signal Processing ICASSP-02. IEEE, 2002. http://dx.doi.org/10.1109/icassp.2002.1004798.

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"Assessing the Graphic Questionnaire Used in Digital Literacy Training." In InSITE 2019: Informing Science + IT Education Conferences: Jerusalem. Informing Science Institute, 2019. http://dx.doi.org/10.28945/4302.

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[This Proceedings paper was revised and published in the 2019 issue of the journal Issues in Informing Science and Information Technology, Volume 16] Aim/Purpose: To capture digital training experiences, the paper introduces a novel data collection method – a graphic questionnaire. It aims to demonstrate the opportunities and limitations of this tool for collecting feedback from socially disadvantaged participants of digital literacy training about their progress. Background: In training of digital skills for disadvantaged audiences through informal educational interventions, it is important to get sufficient knowledge on factors that lead to their progress in the course of training. There are many tools to measure the achievements of formal education participants, but assessing the effectiveness of informal digital skills training is researched less. The paper introduces a small-scale case study of the training programme aimed at the developing of reading and digital skills among the participants from three socially disadvantaged groups – people with hearing impairments, children from low income families, and elderly persons. The impact of the training on participants was evaluated using different tools, including a short graphic questionnaire to capture the perceptions of the participants after each training. Methodology: We performed a thematic analysis of graphic questionnaires collected after each training session to determine how the students perceived their progress in developing literacy and digital skills. Contribution The findings of the paper can assist in designing assessment of digital literacy programmes that focus not only on final results, but also on the process of gaining digital skills and important factors that facilitate progress. Findings: The graphic questionnaire allowed the researchers to get insights into the perception of acquired skills and progressive achievements of the participants through rich self-reports of attitudes, knowledge gained, and activities during training sessions. However, the graphic questionnaire format did not allow the collection of data about social interaction and cooperation that could be important in learning. Recommendations for Practitioners: Graphic questionnaires are useful and easy-to-use tools for getting rich contextual information about the attitudes, behaviour, and acquisition of knowledge in digital literacy training. They can be used in applied assessments of digital literacy training in various settings. Their simplicity can appeal to respondents; however, in the long-run interest of respondents in continuing self-reports should be sustained by additional measures. Recommendations for Researchers: Researcher may explore the variety of simple and attractive research instruments, such as “honeycomb” questionnaires and similar, to facilitate data collection and saturate feedback with significant perception of personal experiences in gaining digital literacy skills. Impact on Society: Designing effective digital literacy programmes, including engaging self-assessment methods and tools, aimed at socially disadvantaged people will contribute to their digital inclusion and to solving the issues of digital divide. Future Research: Exploration of diverse research methods and expanding the research toolset in assessing digital literacy training could advance our understanding of important processes and factors in gaining digital skills.

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Fekete, Gábor. "VIDEOCONFERENCE HEARINGS AFTER THE TIMES OF PANDEMIC." In EU 2021 – The future of the EU in and after the pandemic. Faculty of Law, Josip Juraj Strossmayer University of Osijek, 2021. http://dx.doi.org/10.25234/eclic/18316.

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The sanitary crisis of the Covid-19 pandemic resulted in several changes in the way courts communicate, can be reached and handle cases. The so-called videoconferencing became one of the accepted ways of the hearings. This kind of videoconferencing took place on online videoconference solutions, which differ a lot from the conventional videoconference systems. After the exceptional situation, it remained a question whether the digital revolution of court proceedings had arrived or the use of videoconferencing should remain an exceptional instrument. The application of a videoconference system is the subject of the right to a fair trial, in this regard it has been contested by the European Court of Human Rights in several cases. This case law stated several expectations and reveals many aspects, which have to be applied to the online videoconference solutions. On the other hand, the wider use of legal tech instruments is the subject of the political will. The political support is crystallizing within the EU, whose right to act is limited. The interim measures which were introduced under the emergency law regimes on national level show a number of experiences on how the continuous and legally founded functioning of the justice system can be ensured, for example by the use of online video hearings. The balance between the effectivity and the legality is a crucial question. Upon the above-mentioned sources, the paper introduces the differences of the two methods of videoconferencing. It examines the legal requirements, details the experiences and shows the opportunities of the use of videoconference systems and online videoconference solutions in civil cases. The use of videoconference in civil hearings can be an instrument conforming to procedural right. The general application of videoconference, especially the online solution lowers the threshold to access the justice, accelerates the procedures, ensures social distancing, but requires both legal and technical preparedness.

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Yang, Jingbo. "Modeling a Digital Hearing Instrument for Developing and Evaluating Adaptive Feedback Cancellation Algorithms." In APCCAS 2006 - 2006 IEEE Asia Pacific Conference on Circuits and Systems. IEEE, 2006. http://dx.doi.org/10.1109/apccas.2006.342496.

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