Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
567404 | Signal Processing | 2006 | 5 Pages |
Abstract
In this paper, an improved preprocessor for low-bit-rate speech coding employing the perceptual weighting filter is proposed. Speech modification in the proposed approach is performed according to a criterion which makes a compromise between the modification and perceptual weighted quantization errors. For this, the perceptual weighting filter is expressed in terms of a transform domain matrix. The proposed approach is effective in enhancing the speech signal at coder-decoder (CODEC) output through a number of listening tests.
Related Topics
Physical Sciences and Engineering
Computer Science
Signal Processing
Authors
Joon-Hyuk Chang,