Ninth International Conference on Spoken Language Processing

Pittsburgh, PA, USA
September 17-21, 2006

Signal Modification Incorporating Perceptual Weighting Filter

Joon-Hyuk Chang (1), Woohyung Lim (2), Nam Soo Kim (2)

(1) Inha University, Korea; (2) Seoul National University, Korea

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.

Full Paper

Bibliographic reference.  Chang, Joon-Hyuk / Lim, Woohyung / Kim, Nam Soo (2006): "Signal modification incorporating perceptual weighting filter", In INTERSPEECH-2006, paper 1495-Mon1FoP.1.