DocumentCode
3182633
Title
Study and development of MELP vocoder
Author
Wenyuan, Li ; Xin, Ma ; Yuzhong, Zhang ; Yifang, Zeng
Author_Institution
Inst. of Electron. & Inf. Eng., Tianjin Univ., China
Volume
2
fYear
2002
fDate
26-30 Aug. 2002
Firstpage
1684
Abstract
In mixed-excitation linear prediction (MELP) coding, a new speech synthesis model that approaches actual human pronunciation mechanism is adopted to improve the performance of low bit-rate speech coding. A penetrating analysis of the MELP algorithm is presented in this paper. Improvements in multi-stage vector searching method and in pitch estimation are suggested. A 2.4 kbit/s MELP vocoder has been simulated on PC and realized real time using one single TMS320C5402 DSP.
Keywords
data compression; digital signal processing chips; frequency estimation; linear predictive coding; real-time systems; search problems; speech coding; speech synthesis; vocoders; MELP coding; TMS320C5402 DSP; human pronunciation mechanism; low bit-rate speech coding; mixed-excitation linear prediction; multi-stage vector search; performance; pitch estimation; real time vocoder; speech compression; speech synthesis model; Humans; Interpolation; Jitter; Prototypes; Signal synthesis; Speech analysis; Speech coding; Speech synthesis; Vectors; Vocoders;
fLanguage
English
Publisher
ieee
Conference_Titel
Signal Processing, 2002 6th International Conference on
Print_ISBN
0-7803-7488-6
Type
conf
DOI
10.1109/ICOSP.2002.1180125
Filename
1180125
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