Signal processing strategies and clinical outcomes for gain and waveform compression in hearing aids

J. L. Goldstein, M. Oz, P. Gilchrist, M. Valente

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations

Abstract

Compressive hearing aids automatically reduce their gain with increasing sound level to accommodate reduced dynamic ranges in sensorineural hearing loss. Hearing-impaired people can also benefit from waveform compression that strengthens consonant sounds relative to vowels. The normal ear accomplishes both forms of compressive signal processing with instantaneously compressing bandpass nonlinearity (BPNL) filters under efferent control. Guided by development of this basic knowledge, we have implemented a real-time PC simulation of a multi-channel DSP hearing aid with programmable gain and waveform compression options. Prescription fitting is being developed through clinical study of patient preferences and speech intelligibility.

Original languageEnglish
Pages (from-to)391-398
Number of pages8
JournalConference Record of the Asilomar Conference on Signals, Systems and Computers
Volume1
StatePublished - Dec 1 2003
EventConference Record of the Thirty-Seventh Asilomar Conference on Signals, Systems and Computers - Pacific Grove, CA, United States
Duration: Nov 9 2003Nov 12 2003

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