Title :
A frequency domain multi-band harmonic vocoder for speech data compression
Author :
Ho, C.T. ; Chao, K.S.
Author_Institution :
S3 Inc., Santa Clara, CA, USA
Abstract :
Efficient algorithms are presented for implementing the multi-band harmonic vocoder in the frequency domain for speech data compression. The methods developed for analysis, accurately extracts the basic information from the original speech waveform to recreate its frequency spectrum. A simplified scheme for estimating the initial phase is also used to further improve the quality of the decoded speech
Keywords :
data compression; decoding; harmonics; prediction theory; speech coding; speech synthesis; vocoders; decoded speech quality; frequency domain vocoder; frequency spectrum; initial phase estimation; linear prediction filters; multi-band harmonic vocoder; pitch period estimation algorithm; speech data compression; Data compression; Frequency domain analysis; Frequency estimation; Phase estimation; Power harmonic filters; Signal analysis; Signal synthesis; Speech analysis; Speech synthesis; Vocoders;
Conference_Titel :
Circuits and Systems, 1997. Proceedings of the 40th Midwest Symposium on
Conference_Location :
Sacramento, CA
Print_ISBN :
0-7803-3694-1
DOI :
10.1109/MWSCAS.1997.662180
