DocumentCode
3524050
Title
Computationally efficient ABS scheme for sinusoidal transform coding of speech
Author
Agarwal, Nishant
Author_Institution
Electron. & Commun. Eng., IIT, Roorkee, India
fYear
2003
fDate
14-17 Dec. 2003
Firstpage
737
Lastpage
740
Abstract
Analysis-by-synthesis (AbS) has been used in a range of medium and low bitrate speech coders to find the parameters that would best reconstruct a given waveform. AbS has been used despite its high computational complexity because it gives accurate results. In this paper, a low complexity analysis by synthesis scheme for a sinusoidal transform coder (STC) has been proposed. The accuracy of results has not been compromised, while reducing the computational complexity from 2.63 MFLOPS (best case) and 22.13 MFLOPS (worst case) to a constant value of 0.46 MFLOPS.
Keywords
computational complexity; speech coding; speech synthesis; transform coding; analysis-by-synthesis; bitrate speech coders; computational complexity; sinusoidal transform coder; speech sinusoidal transform coding; Decoding; Fourier series; Frequency; Linear predictive coding; Prototypes; Speech analysis; Speech coding; Speech synthesis; Testing; Transform coding;
fLanguage
English
Publisher
ieee
Conference_Titel
Signal Processing and Information Technology, 2003. ISSPIT 2003. Proceedings of the 3rd IEEE International Symposium on
Print_ISBN
0-7803-8292-7
Type
conf
DOI
10.1109/ISSPIT.2003.1341226
Filename
1341226
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