Title :
Speech excitation modelling for low bit speech coding
Author :
Sun, Xiaoqin ; Cheetham, Barry M G
Author_Institution :
Dept. of Electr. Eng. & Electron., Liverpool Univ., UK
Abstract :
This paper examines commonly accepted models for voiced speech production to determine more accurate ways of relating magnitude and phase spectra, taking into account the non-minimum phase nature of the glottal excitation. The implications for low-bit rate coding techniques such as STC, PWI and MBE, which encode magnitude information only, are addressed
Keywords :
interpolation; speech coding; speech synthesis; MBE; PWI; STC; glottal excitation; low bit speech coding; magnitude; magnitude information encoding; models; nonminimum phase nature; phase spectra; speech excitation modelling; voiced speech production; Decoding; Delay effects; Filtering; Filters; Poles and zeros; Speech analysis; Speech coding; Sun; Transfer functions;
Conference_Titel :
Speech Coding For Telecommunications Proceeding, 1997, 1997 IEEE Workshop on
Conference_Location :
Pocono Manor, PA
Print_ISBN :
0-7803-4073-6
DOI :
10.1109/SCFT.1997.623870
