Title :
Speech Signal Compression & DSP Realization with Virtual-Value Mapping Coding
Author :
Xu, M.H. ; Ran, F. ; Yu, F.Q. ; Wu, J.
Author_Institution :
Sch. of Mechatronical Eng. & Autom., Shanghai Univ.
Abstract :
Theoretically based on wavelet transform, a sort of virtual value mapping coding algorithm about speech signal compression is analyzed and designed in the light of frequency division character of wavelet packet transform in this paper. The algorithm is also realized on TMS320VC5402 DSP. The experiment shows that the algorithm can not only reduce the rate of coding and the space of memory effectively but also give small reconstructed-signal distortion
Keywords :
data compression; digital signal processing chips; distortion; speech coding; wavelet transforms; DSP realization; TMS320VC5402; coding rate reduction; frequency division; memory space reduction; signal distortion; speech signal compression; virtual-value mapping coding; wavelet packet transform; Algorithm design and analysis; Digital signal processing; Signal analysis; Signal design; Signal mapping; Speech analysis; Speech coding; Wavelet analysis; Wavelet packets; Wavelet transforms;
Conference_Titel :
Industrial Electronics and Applications, 2006 1ST IEEE Conference on
Conference_Location :
Singapore
Print_ISBN :
0-7803-9513-1
Electronic_ISBN :
0-7803-9514-X
DOI :
10.1109/ICIEA.2006.257068
