Title :
Predictive coding of the LPC-spectra for low bit-rate speech coding
Author :
Zarkadis, D.J. ; Evans, B.G.
Author_Institution :
Dept. of Electron. & Electr. Eng., Surrey Univ., Guildford, UK
Abstract :
Considers the coding of the LPC-spectral information. Various LPC representations and quantization schemes already in use are addressed, and emphasis is given to predictive coding schemes which represent a fairly new approach to this problem. Following this approach, a vector predictive coder with split-vector quantization (VP-SVQ) is described and its distortion-rate characteristic is estimated. This scheme can be embedded into LPC-type speech coders for low bit-rate applications
Keywords :
encoding; filtering and prediction theory; spectral analysis; speech analysis and processing; LPC spectra; LPC-spectral information; LPC-type speech coders; distortion-rate characteristic; low bit-rate speech coding; predictive coding; speech analysis; speech processing; split-vector quantization; vector predictive coder;
Conference_Titel :
Speech Coding, IEE Colloquium on
Conference_Location :
London
