Effective post-processing for single-channel frequency-domain speech enhancement
| Type of publication: | Idiap-RR |
| Citation: | li:rr07-71 |
| Number: | Idiap-RR-71-2007 |
| Year: | 2007 |
| Institution: | IDIAP |
| Note: | Submitted for publication |
| Abstract: | Conventional frequency-domain speech enhancement filters improve signal-to-noise ratio (SNR,',','), but also produce speech distortions. This paper describes a novel post-processing algorithm devised for the improvement of the quality of the speech processed by a conventional filter. In the proposed algorithm, the speech distortion is first compensated by adding the original noisy speech, and then the noise is reduced by a post-filter. Experimental results on speech quality show the effectiveness of the proposed algorithm in lower speech distortions. Based on our isolated word recognition experiments conducted in 15 real car environments, a relative word error rate (WER) reduction of 10.5\% is obtained compared to the conventional filter. |
| Userfields: | ipdmembership={speech}, |
| Keywords: | |
| Projects: |
Idiap |
| Authors: | |
| Added by: | [UNK] |
| Total mark: | 0 |
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