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Research Article

A method to measure hearing aid directivity index and polar pattern in small and reverberant enclosures

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Pages 405-416 | Received 20 Jun 2010, Accepted 19 Dec 2010, Published online: 10 Feb 2011

References

  • ANSI. 1984. American National Standard: American National Standard preferred frequencies, frequency levels, and band numbers for acoustical measurements. New York: American National Standards Institute, ANSI S1.6-1984 (R2006).
  • ANSI. 2004. American National Standard: Method of measurement of performance characteristics of hearing aids under simulated in-situ working conditions. New York: American National Standards Institute, ANSI S3.35-2004.
  • Beranek L.L. 1949. Acoustic Measurements. London: Wiley.
  • Capetanopoulos C.D. 1972. Measurement of the directivity characteristics of loudspeakers and microphone in a reverberant enclosure. IEEE Trans Audio Electroacoust, 20, 151–154.
  • Chung K. 2004. Challenges and recent developments in hearing aids. Part I. Speech understanding in noise, microphone technologies, and noise reduction algorithms. Trends Amplif, 8, 83–124.
  • Dittberner A.B., Bentler R.A. 2007. Predictive measures of directional benefit. Part 2: Verification of different approaches to estimating directional benefit. Ear Hear, 28, 46–61.
  • Everest F.A. 2000. Master Handbook of Acoustics. Columbus: McGraw Hill.
  • Fincham L.R. 1985. Refinements in the impulse testing of loudspeakers. J Audio Eng Soc, 33, 133–140.
  • Hagerman B., Olofsson A. 2004. A method to measure the effect of noise reduction algorithms using simultaneous speech and noise. Acta Acustica, 90, 356–361.
  • Heyser R.C. 1967. Acoustical measurements by time delay spectrometry. J Audio Eng Soc, 15, 370–382.
  • Kates J.M. 2008. Digital Hearing Aids. San Diego: Plural.
  • Keele D.B. 1974. Low-frequency loudspeaker assessment by nearfield sound-pressure measurement. J Audio Eng Soc, 22, 154–162.
  • Niedrist G. 1993. Echo suppression for loudspeaker-microphone system measurements. J Audio Eng Soc, 41, 143–153.
  • Ricketts T.A. 2000. Directivity quantification in hearing aids: Fitting and measurement effects. Ear Hear, 21, 45–58.
  • Ricketts T.A., Dittberner A.B. 2002. Directional amplification for improved signal-to-noise ratio: Strategies, measurement, and limitations. M. Valente Strategies for Selecting and Verifying Hearing Aid Fittings. New York: Theme, 274–346.
  • Ricketts T.A., Henry P.P., Hornsby B.W. 2005. Application of frequency importance functions to directivity for prediction of benefit in uniform fields. Ear Hear, 26, 473–486.
  • Struck C.J., Temme S.F. 1994. Simulated free field measurements. J Audio Eng Soc, 42, 467–482.
  • Wu Y.H., Bentler R.A. 2007. Using a signal cancellation technique to assess adaptive directivity of hearing aids. J Acoust Soc Am, 122, 496–511.
  • Wu Y.H., Bentler R.A. 2009. Using a signal cancellation technique involving impulse response to assess directivity of hearing aids. J Acoust Soc Am, 126, 3214–3226.

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