Critical-band based compression - An insight into the future of digital hearing aids

N. P. Vikrant, Y. Krishna, B. Rajashekhar, K. N. Naveen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Patients 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 both the tasks we confirmed that processed speech became more intelligible, thus highlighting the need for devising a processing algorithm which can achieve the compression of signal along the frequency axis in real-time to help patients with sensorineural hearing loss to improve the perceived speech intelligibility.

Original languageEnglish
Title of host publicationICALIP 2008 - 2008 International Conference on Audio, Language and Image Processing, Proceedings
Pages1620-1623
Number of pages4
DOIs
Publication statusPublished - 22-09-2008
EventICALIP 2008 - 2008 International Conference on Audio, Language and Image Processing - Shanghai, China
Duration: 07-07-200809-07-2008

Conference

ConferenceICALIP 2008 - 2008 International Conference on Audio, Language and Image Processing
CountryChina
CityShanghai
Period07-07-0809-07-08

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Computer Vision and Pattern Recognition

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    Vikrant, N. P., Krishna, Y., Rajashekhar, B., & Naveen, K. N. (2008). Critical-band based compression - An insight into the future of digital hearing aids. In ICALIP 2008 - 2008 International Conference on Audio, Language and Image Processing, Proceedings (pp. 1620-1623). [4590100] https://doi.org/10.1109/ICALIP.2008.4590100