Interframe differential vector coding of line spectrum frequencies
Author
Erzin, Engin
Çetin, A. Enis
Date
1993-04Source Title
IEEE International Conference on Acoustics, Speech and Signal Processing. Proceedings
Print ISSN
0736-7791
Publisher
IEEE
Pages
25 - 28
Language
English
Type
Conference PaperItem Usage Stats
147
views
views
125
downloads
downloads
Abstract
Line Spectrum Frequencies (LSF's) uniquely represent the Linear Predictive Coding (LPC) filter of a speech frame. In many vocoders LSF's are used to encode the LPC parameters. In this paper, an interframe differential coding scheme is presented for the LSF's. The LSF's of the current speech frame are predicted by using both the LSF's of the previous frame and some of the LSF's of the current frame. Then, the difference vector resulting from prediction is vector quantized.
Keywords
Mathematical modelsPoles and zeros
Polynomials
Root loci
Sampled data control systems
Signal filtering and prediction
Spectrum analysis
Speech recognition
Speech synthesis
Vectors
Vocoders
Interframe differential vector coding
Line spectrum frequencies
Linear predictive coding (LPC) filters
Speech coding