Designing a Quantizer of LPC Parameters for the Narrowband Speech Coder using Block-Constrained Trellis Coded Quantization 


Vol. 32,  No. 3, pp. 234-240, Mar.  2007


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  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 narrowband speech coding applications. Trellis-coded quantization(TCQ) is a form of VQ that builds the VQ codebook from interleaved constituent scalar quantization codebooks. The performance is compared to the other VQ, demonstrating reduction in spectral distortion and significant reduction in encoding complexity. The predictive BC-TCQ is about 0.47107 dB superior to the IS-641 split-VQ, 26bits/frame, in spectral distortion sense. The BC-TCQ is 64.54%, 76.93%, 2.35% of the IS-641 split-VQ, respectively, in the complexity of the additions, multiplies, comparisons.

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  Cite this article

[IEEE Style]

J. Jun, S. Park, S. Kang, "Designing a Quantizer of LPC Parameters for the Narrowband Speech Coder using Block-Constrained Trellis Coded Quantization," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 3, pp. 234-240, 2007. DOI: .

[ACM Style]

Jakyoung Jun, Sangkuk Park, and Sangwon Kang. 2007. Designing a Quantizer of LPC Parameters for the Narrowband Speech Coder using Block-Constrained Trellis Coded Quantization. The Journal of Korean Institute of Communications and Information Sciences, 32, 3, (2007), 234-240. DOI: .

[KICS Style]

Jakyoung Jun, Sangkuk Park, Sangwon Kang, "Designing a Quantizer of LPC Parameters for the Narrowband Speech Coder using Block-Constrained Trellis Coded Quantization," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 3, pp. 234-240, 3. 2007.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880