Application of psychoacoustics in hearing aid development.
Source: Acustica 85(5):642-5.
Abstract: Compensation of individual hearing deficits is the goal of modern hearing instruments. Signal processing algorithms have to be developed and fitting strategies have to be applied for each individual hearing-impaired listener, to reach this goal. Psychoacoustical knowledge is vital at different stages of hearing aid development and loudness, perception time and frequency selectivity are the most important psychoacoustical parameters which have to be taken into account in signal processing algorithms. Pure-tone audiogram and sometimes loudness scaling results are used for fitting hearing aids. To examine the benefits of hearing instruments, speech intelligibility and quality tests which also give hints for future developments can be used. Since the capacity for algorithms is dramatically increasing by digitizing the signal processing, cooperation between industry and university partners is important in all stages of hearing aid development. (CIRRIE Abstract)
Institution: Siemens Audiologische Technik GmbH, Erlangen, Germany