Critical Band Based Spectral Compression: An Insight into the Future of Digital Hearing Aids - Brossura

Patil, Vikrant; Krishna, Y.; Bellur, Rajashekhar

Brossura

ISBN 10: 3848481219 ISBN 13: 9783848481217

Casa editrice: LAP LAMBERT Academic Publishing, 2012

Riassunto

Individuals with sensorineural hearing impairment often experience difficulty in understanding speech. This can be attributed to the widened auditory filters, which results in greater spectral spread across the critical bands and thus causing increased spectral masking. Off late various methods have been used to compress the signal towards the center of the critical band. In our study we have used gammatone filters to split the speech signal into various bands and each critical band was compressed along the frequency axis. 30 hearing impaired subjects participated in a perceptual judgment and speech identification task. From the results of our study we confirmed that processed speech became more intelligible. Thus our study highlights the need for devising a processing algorithm that can achieve spectral compression of signal towards the center of critical band in real-time. Such a processing algorithm when incorporated in digital hearing aids may prove to be beneficial for individuals with sensorineural hearing loss to improve their perceived speech intelligibility.

Su questo libro

L'autore

Mr. Vikrant Patil is currently working as a consultant audiologist at National Hearing Care Australia, with particular emphasis in amplification and aural rehabilitation of adults with hearing impairment. He has degrees from Manipal University (India) (BASLP, 2004, MASLP 2006). He is also pursuing his Doctor of Audiology from University of Florida.

Product Description

Book by Patil Vikrant Krishna Y Bellur Rajashekhar

Dettagli dell'edizione

• Editore: LAP LAMBERT Academic Publishing
• Data di pubblicazione: 2012
• Lingua: Inglese
• ISBN 10: 3848481219
• ISBN 13: 9783848481217
• Rilegatura: Copertina flessibile
• Numero di pagine: 60
• Contatto del produttore: non disponibile
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