DocumentCode
1739523
Title
A 2400 bps improved MBELP vocoder
Author
Zhang, Xinyi ; Jiang, Taihui ; Zhong, Ming
Author_Institution
Res. Inst. of Inf. Sci., WuYi Univ., Guangdong, China
Volume
2
fYear
2000
fDate
2000
Firstpage
702
Abstract
This paper presents an improved multi-band excitation linear predictive (IMBELP) vocoder at 2.4 kb/s. Compared with a simple MBELP vocoder, this vocoder has some improvements on pitch estimation and unvoiced/voiced (U/V) decision. The synthesized speech of IMBELP vocoder is also better than that of simple MBELP vocoder. After an introduction, the IMBELP vocoder is discussed in detail. The results of pitch estimation and U/V decision based on the IMBELP are compared with those based on simple MBELP
Keywords
linear predictive coding; parameter estimation; speech synthesis; vocoders; 2.4 kbit/s; IMBELP vocoder; multi-band excitation linear predictive vocoder; pitch estimation; synthesized speech; unvoiced/voiced decision; Amplitude estimation; Decoding; Frequency estimation; Information science; Least squares approximation; Parameter estimation; Speech coding; Speech enhancement; Speech synthesis; Vocoders;
fLanguage
English
Publisher
ieee
Conference_Titel
Signal Processing Proceedings, 2000. WCCC-ICSP 2000. 5th International Conference on
Conference_Location
Beijing
Print_ISBN
0-7803-5747-7
Type
conf
DOI
10.1109/ICOSP.2000.891607
Filename
891607
Link To Document