Sound Quality Judgments in Class A and Class D Hearing Aids
Jeremy Agnew, Lisa G. Potts, Michael Valente · American Journal of Audiology · 1997
No AccessAmerican Journal of AudiologyClinical Focus: Grand Rounds1 Jul 1997Sound Quality Judgments in Class A and Class D Hearing Aids Jeremy Agnew, PhD Lisa Gulledge Potts, and Michael Valente Jeremy Agnew Starkey Laboratories, Inc., 1110 Elkton Drive, Unit E, Colorado Springs, CO 80907 Google Scholar More articles by this author , Lisa Gulledge Potts Washington University School of Medicine, St. Louis, MO Google Scholar More articles by this author and Michael Valente Washington University School of Medicine, St. Louis, MO Google Scholar More articles by this author https://doi.org/10.1044/1059-0889.0602.33 SectionsAboutFull TextPDF ToolsAdd to favoritesDownload CitationTrack Citations ShareFacebookTwitterLinked In References Agnew, J. (1988). Hearing instrument distortion: What does it mean for the listener?.Hearing Instruments, 39(10), 10, 12, 14, 16, 20, 61. Google Scholar Agnew, J. (1994). Measurement of distortion levels in hearing aids: It’s not a simple matter.Hearing Journal, 47(5), 25–27, 30–32. Google Scholar Agnew, J. (1995). The saturation distortion problem in hearing aids: Causes and a solution.Hearing Journal, 48(8), 33–34, 36–38. Google Scholar American National Standards Institute (ANSI). (1987). Specification of hearing aid characteristics. American National Standard ANSI S3.22-1987. New York: Acoustical Society of America. Google Scholar Ashley, R. (1976). On the audibility of distortion in loudspeakers. IEEE Conference on ASSP, Philadelphia, PA. Google Scholar Cabot, R. C. (1988). Audio tests and measurements.In K. B. Benson (Ed.), Audio engineering handbook. New York: McGraw-Hill. Google Scholar Carlson, E. V. (1988). An output amplifier whose time has come.Hearing Instruments, 39(10), 30, 32. Google Scholar Curran, J. R. (1974). Harmonic distortion and intelligibility.Hearing Aid Journal, 27(6), 12, 39 Google Scholar Foreman, C. (1987). Sound system design.In G. Ballou (Ed.), Handbook for sound engineers. Indianapolis, IN: Howard W. Sams. Google Scholar Gabrielsson, A., Schenkman, B. N., & Hagerman, B. (1988). The effects of different frequency responses on sound quality judgments and speech intelligibility.Journal of Speech and Hearing Research, 31, 166–177. ASHAWireGoogle Scholar Gabrielsson, A., & Sjogren, H. (1979a). Perceived sound quality of sound reproducing systems.Journal of the Acoustical Society of America, 65(4), 1019–1033. Google Scholar Gabrielsson, A., & Sjogren, H. (1979b). Perceived sound quality of hearing aids.Scandinavian Audiology, 8, 159–169. Google Scholar Jirsa, R., & Norris, T. W. (1982). Effects of intermodulation distortion on speech intelligibility.Ear and Hearing, 3(5), 251–256. Google Scholar Johnson, W. A., & Killion, M. C. (1994). Amplification: Is Class D better than Class B?.American Journal of Audiology, 3(1), 11–13. ASHAWireGoogle Scholar Kochkin, S., & Ballad, W. J. (1991). Dispenser sound quality perceptions of Class-D integrated receivers.Hearing Instruments, 42(4), 25, 28. Google Scholar Langford-Smith, F. (1960). Fidelity and distortion.In F. Langford-Smith (Ed.), Radiotron designer’s handbook (4th ed.). Harrison, NJ: Radio Corporation of America. Google Scholar Licklider, J. C. R. (1946). Effects of amplitude distortion upon the intelligibility of speech.Journal of the Acoustical Society of America, 18(2), 429–434. Google Scholar Longwell, T. F., & Gawinski, M. J. (1992). Fitting strategies for the 90s: Class-D amplification.Hearing Journal, 45(9), 26, 28, 30–31. Google Scholar Palmer, C. V., Killion, M. C., Wilber, L. A., & Ballad, W. J. (1995). Comparison of two hearing aid receiver-amplifier combinations using sound quality judgments.Ear and Hearing, 16(6), 587–598. Google Scholar Peters, R. W., & Burkhard, M. D. (1968). On noise and harmonic distortion measurements.Report No 10350-1. Elk Grove Village, IL: Industrial Research Products. Google Scholar Preves, D. A. (1990, June/July). Expressing hearing aid noise and distortion with coherence measurements.Asha, 56–59. Google Scholar Preves, D. A., & Newton, J. R. (1989). The headroom problem and hearing aid performance.Hearing Journal, 42(10), 19–21, 24–26. Google Scholar Preves, D. A., & Woodruff, B. D. (1990, Summer). Some methods of improving and assessing hearing aid headroom.Audecibel, 8–13. Google Scholar Punch, J. L. (1978). Quality judgments of hearing-aid-processed speech and music by normal and otopathologic listeners.Journal of the American Audiological Society, 3(4), 179–188. Google Scholar Punch, J. L., Montgomery, A. A., Schwartz, D. M., Walden, B. E., Prosek, R. A., & Howard, M. T. (1980). Multidimensional scaling of quality judgments of speech signals processed by hearing aids.Journal of the Acoustical Society of America, 68(2), 458–466. Google Scholar Rayovac. (1996). Hearing aid battery data sheet. Madison, WI: Rayovac Corporation. Google Scholar Scroggie, M. G. (1954). Radio laboratory handbook. London: Iliffe & Sons. Google Scholar Thomsen, C., & Moller, H. (1975). Swept measurements of harmonic, difference frequency and intermodulation distortion.Application Note 15-098. Naerum, Denmark: Bruel & Kjaer. Google Scholar White, G. D. (1993). The audio dictionary (2nd ed.). Seattle, WA: University of Washington Press. Google Scholar Williamson, M. J., Cummins, K. L., & Hecox, K. E. (1987). Speech distortion measures for hearing aids.Journal of Rehabilitation Research, 24(4), 277–282. Google Scholar Additional Resources FiguresReferencesRelatedDetails Volume 6Issue 2July 1997Pages: 33-44 Get Permissions Add to your Mendeley library HistoryReceived: Apr 30, 1996Accepted: Jan 6, 1997 Published in issue: Jul 1, 1997 Metrics Topicsasha-topicsasha-article-typesKeywordshearing aid sound qualityhearing aid distortionClass A amplificationhearing aid headroomtotal harmonic distortion (THD)Class D amplificationintermodulation distortion (IMD)Copyright & PermissionsCopyright © 1997 American Speech-Language-Hearing AssociationPDF downloadLoading ...