Title :
Low-complexity predictive trellis coded quantization of wideband speech LSF parameters
Author :
Shin, Yongwon ; Kang, Sangwon ; Fischer, Thomas R. ; Son, Changyong ; Lee, YongBeom
Author_Institution :
Telecommun. R&D Center, Samsung Electron. Co. Suwon, South Korea
Abstract :
In this paper, low-complexity block-constrained trellis coded quantization (BC-TCQ) structures are introduced, and a predictive BC-TCQ encoding method is developed for quantization of line spectrum frequencies (LSF) parameters for wideband speech coding applications. The performance is compared to the linear predictive coding (LPC) vector quantizers used in the AMR-WB (ITU-G.722.2) speech coding standard, demonstrating reduction in spectral distortion and significant reduction in encoding complexity.
Keywords :
prediction theory; speech coding; trellis codes; BC-TCQ; block-constrained trellis coded quantization; encoding complexity reduction; line spectrum frequencies; low-complexity quantization; performance; predictive encoding; predictive trellis coded quantization; spectral distortion reduction; wideband speech LSF parameters; wideband speech coding; Convolutional codes; Encoding; Frequency; Linear predictive coding; Rate-distortion; Research and development; Speech coding; Vector quantization; Viterbi algorithm; Wideband;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on
Print_ISBN :
0-7803-8484-9
DOI :
10.1109/ICASSP.2004.1325943
