DocumentCode :
3652271
Title :
Efficient representation of short-time phase based on group delay
Author :
H. Banno; Jinlin Lu;S. Nakamura;K. Shikano;H. Kawahara
Author_Institution :
Graduate Sch. of Inf. Sci., Nara Inst. of Sci. & Technol., Japan
Volume :
2
fYear :
1998
Firstpage :
861
Abstract :
An efficient representation of short-time phase characteristics of speech sounds is proposed, based on findings which suggest the perceptual importance of phase characteristics. Subjective tests indicated that the synthesized speech sounds by the proposed method are indistinguishable from the original speech sounds with a moderate data compression. The proposed representation uses lower-order coefficients of the inverse Fourier transform of the group delay of speech. It also alleviates the voiced/unvoiced decision, which is an indispensable part in conventional speech coding algorithms. These features make our method potentially very useful in many applications like speech morphing.
Keywords :
"Speech synthesis","Speech coding","Linear predictive coding","Speech analysis","Delay estimation","Bit rate","Delay effects","Information science","Acoustical engineering","Systems engineering and theory"
Publisher :
ieee
Conference_Titel :
Acoustics, Speech and Signal Processing, 1998. Proceedings of the 1998 IEEE International Conference on
ISSN :
1520-6149
Print_ISBN :
0-7803-4428-6
Type :
conf
DOI :
10.1109/ICASSP.1998.675401
Filename :
675401
Link To Document :
بازگشت