Title
A high quality 9.6 kbps speech coding system
Abstract
A 9.6 kbps speech coding system based on a new speech model is presented. In this model, the short-time spectrum of speech is modeled as the product of an excitation spectrum and a spectral envelope. The spectral envelope is some smoothed version of the speech spectrum and the excitation spectrum is represented by a fundamental frequency, a voiced/unvoiced (V/UV) decision for each harmonic of the fundamental, and the phase of each harmonic declared voiced. In speech analysis, the model parameters are estimated by explicit comparison between the original speech spectrum and the synthetic speech spectrum. Preliminary results indicate that high quality reproduction can be obtained with this speech coding system for both clean and noisy speech without the "buzziness" and severe degradation in noise typically associated with vocoder speech.
Year
DOI
Venue
1986
10.1109/ICASSP.1986.1169126
Acoustics, Speech, and Signal Processing, IEEE International Conference ICASSP '86.
Keywords
DocType
Volume
spectrum,frequency,parameter estimation,speech synthesis,fundamental frequency,acoustic noise,speech coding
Conference
11
Citations 
PageRank 
References 
1
0.37
0
Authors
2
Name
Order
Citations
PageRank
Griffin, D.110.37
Lim, J.S.212772.56