Effects of expansion algorithms on speech reception thresholds

Journal of the American Academy of Audiology

Volumn 19, Issue 2, 2008, Pages 147-157

  Wise, Christi L ^a,b   Zakis, Justin A ^a  

^a Dynamic Hearing Pty Ltd   (Australia)

^b NONE   (Australia)

Author keywords

Adaptive dynamic range optimization; Expansion; Internal noise

Indexed keywords

ADULT; AGED; ALGORITHM; AMPLIFIER; ARTICLE; AUDITORY THRESHOLD; CLINICAL ARTICLE; CONTROLLED STUDY; HEARING; HEARING AID; HEARING TEST; HUMAN; NOISE; NOISE MEASUREMENT; NOISE REDUCTION; PERCEPTION DEAFNESS; PRIORITY JOURNAL; SPEECH DISCRIMINATION;

AGED; AGED, 80 AND OVER; ALGORITHMS; AUDIOMETRY; AUDIOMETRY, PURE-TONE; AUDITORY THRESHOLD; HEARING AIDS; HEARING LOSS, SENSORINEURAL; HUMANS; MIDDLE AGED; NOISE; SPEECH PERCEPTION; SPEECH RECEPTION THRESHOLD TEST;

EID: 46249123780     PISSN: 10500545     EISSN: None     Source Type: Journal    
DOI: 10.3766/jaaa.19.2.5     Document Type: Article

References (22)

1. Agnew J. (1996) Perception of internally generated noise in hearing amplification. J Am Acad Audiol 7:296-303.
2. Agnew J. (1997) Audible circuit noise in hearing aid amplifiers. J Acoust Soc Am 102:2793-2799.
3. Bentler RA, Pavlovic CV. (1989) Transfer functions and correction factors used in hearing aid evaluation and research. Ear Hear 10:58-63.
4. Blamey PJ. (2005) Adaptive dynamic range optimization (ADRO): a digital amplification strategy for hearing aids and cochlear implants. Trends Amplif 9:77-98.
5. Bray VH, Ghent RM. (2001) Expansion as a tool for adaptation to amplification. Semin Hear 22:183-197.
6. Byrne D, Dillon H, Tran K, Arlinger S, Wilbraham K, Cox R, Hetu R, et al. (1994) An international comparison of long-term average speech spectra. J Acoust Soc Am 96(4):2108-2120.
7. Dillon H, Keidser G, O'Brien A, Silberstein H. (2003) Sound quality comparisons of advanced hearing aids. Hear J 56:1-6.
8. Fiket H, Hau J, Steele B. (2005) Perceptual effects of noise reduction in hearing aids. Poster presented at the American Academy of Audiology's 17th Annual Convention, Washington, DC.
9. Holube I, Velde TM. (2000) DSP hearing instruments. In: Sandlin RE, ed. Textbook of Hearing Aid Amplification. San Diego: Singular Publishing Group, 285-321.
10. Kuk FK. (2002) Considerations in modern multichannel nonlinear hearing aids. In: Valente M, ed. Hearing Aids: Standards, Options, and Limitations. New York: Thieme Medical Publishers, 186-187.
11. Moore BCJ, Glasberg BR. (1997) A model of loudness perception applied to cochlear hearing loss. Aud Neurosci 3:289-311.
12. Nabelek AK, Freyaldenhoven MC, Tampas JW, Burchfield SB, Muenchen RAR. (2006) Acceptable noise level as a predictor of hearing aid use. J Am Acad Audiol 17:626-639.
13. Nabelek AK, Tucker FM, Letowski TR. (1991) Tolerance of background noises: relationship with patterns of hearing aid use by elderly persons. J Speech Hear Res 34:679-685.
14. Nilsson M, Soli SD, Sullivan JA. (1994) Development of the Hearing In Noise Test for the measurement of speech reception thresholds in quiet and in noise. J Acoust Soc Am 95:1085-1099.
15. Pearsons KS, Bennett RL, Fidell S. (1977) Speech levels in various noise environments. Report No. EPA-600/177-025. Washington, DC: U.S. Environmental Protection Agency.
16. Plyler PN, Hill AB, Trine TD. (2005a) The effects of expansion on the objective and subjective performance of hearing instrument users. J Am Acad Audiol 16:101-113.
17. Plyler PN, Hill AB, Trine TD. (2005b) The effects of expansion time constants on the objective performance of hearing instrument users. J Am Acad Audiol 16:614-621.
18. Plyler PN, Lowery KJ, Hamby HM. (2006b) The objective and subjective evaluation of multi-channel expansion in wide dynamic range compression hearing instruments. Poster presented at the International Hearing Aid Research Conference, Lake Tahoe, CA.
19. Plyler PN, Lowery KJ, Hamby HM, Trine TD. (2007) The objective and subjective evaluation of multichannel expansion in wide dynamic range compression hearing instruments. J Speech Lang Hear Res 50:15-24.
20. Plyler PN, Trine TD, Hill AB. (2006a) A subjective evaluation of the expansion time constant in single-channel wide dynamic range compression hearing instruments. Int J Audiol 45:331-336.
21. Venema TH. (2000) The many faces of compression. In: Sandlin RE, ed. Textbook of Hearing Aid Amplification. San Diego: Singular Publishing Group, 238-239.
22. Zakis JA, Wise C. (2007) The acoustic and perceptual effects of two noise-suppression algorithms. J Acoust Soc Am 121(1):433-441.