DocumentCode
1445472
Title
A modified pitch detection algorithm
Author
Hu, Jianling ; Xu, Sheng ; Chen, Jian
Author_Institution
Shanghai Jiaotong Univ., China
Volume
5
Issue
2
fYear
2001
fDate
2/1/2001 12:00:00 AM
Firstpage
64
Lastpage
66
Abstract
Sinusoidal speech coders have been widely studied for low bit rate coding due to their capability of producing high quality speech. However, the estimation error of the sinusoidal model parameters, pitch in particular, would seriously degrade the speech quality. We provide a modified pitch detection algorithm (MPDA). The experimental results show that the proposed method can provide a more accurate and smoother pitch tracking that that of IMBE, and the reconstructed speech sounds more continuous.
Keywords
parameter estimation; signal detection; signal reconstruction; speech coding; speech intelligibility; vocoders; estimation error; high quality speech; low bit rate coding; modified pitch detection algorithm; pitch tracking; reconstructed speech; sinusoidal model parameters; sinusoidal speech coders; speech quality; Bit rate; Degradation; Detection algorithms; Estimation error; Frequency estimation; Low pass filters; Parameter estimation; Shape control; Speech coding; Vocoders;
fLanguage
English
Journal_Title
Communications Letters, IEEE
Publisher
ieee
ISSN
1089-7798
Type
jour
DOI
10.1109/4234.905937
Filename
905937
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