Multi-band frequency compression for reducing the effects of spectral masking
Sensorineural hearing loss is associated with widening of auditory filter bandwidths, leading to increased spectral masking and degraded speech perception. Multi-band frequency compression can be used for reducing the effects of spectral masking. In this technique, the speech spectrum is divided int...
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Published in | International journal of speech technology Vol. 10; no. 4; pp. 219 - 227 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
01.12.2007
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Subjects | |
Online Access | Get full text |
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Summary: | Sensorineural hearing loss is associated with widening of auditory filter bandwidths, leading to increased spectral masking and degraded speech perception. Multi-band frequency compression can be used for reducing the effects of spectral masking. In this technique, the speech spectrum is divided into a number of analysis bands and spectral samples in each of these bands are compressed towards the band center by a constant compression factor. Implementation of the scheme with different types of frequency mappings, bandwidths, and segmentation for processing is investigated. Listening tests conducted for assessing the quality and intelligibility of the processed speech gave best results for critical bandwidth based compression using spectral segment mapping and pitch-synchronous processing. Adapted from the source document |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1381-2416 1572-8110 |
DOI: | 10.1007/s10772-009-9030-z |