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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Akbari Azirani, A. Le Bouquin Jeannes, R. Faucon, G. |
| Copyright Year | 1995 |
| Description | Author affiliation: Lab. Traitement du Signal et de l'Image, Rennes I Univ., France (Akbari Azirani, A.; Le Bouquin Jeannes, R.; Faucon, G.) |
| Abstract | The problem of speech enhancement and mainly noise reduction in speech remains a key-point of hand-free telecommunications. A great number of techniques have been already put forward and for a few years an auditory model has been investigated in noise reduction. A new approach for enhancing a speech signal degraded by uncorrelated stationary additive noise is developed. In this approach the simultaneous masking effect of the human ear is exploited. Two states "noise masked/noise unmasked" are derived from a noise masking threshold computed using a rough estimate of the speech signal. Then a speech signal estimator is proposed as a weighted sum of the individual estimators in each state. The gain in the signal to noise ratio (SNR) and a distortion measure indicate some improvement in real noise conditions. Subjectively this improvement is noticeable only at high input SNRs. |
| Starting Page | 800 |
| Ending Page | 803 |
| File Size | 319525 |
| Page Count | 4 |
| File Format | |
| ISBN | 0780324315 |
| ISSN | 15206149 |
| DOI | 10.1109/ICASSP.1995.479815 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1995-05-09 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Speech enhancement State estimation Signal to noise ratio Noise reduction Distortion measurement Degradation Additive noise Humans Ear Masking threshold |
| Content Type | Text |
| Resource Type | Article |
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