High quality speech coding based on hybrid CELPC and VELPC techniques

Sam Kwong; Gang Wei; Jing Zheng Ouyang

doi:10.1109/TENCON.1993.327979

High quality speech coding based on hybrid CELPC and VELPC techniques

Sam Kwong, Gang Wei, Jing Zheng Ouyang

Department of Computer Science

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

Abstract

Code-Excited Linear Predictive Coding (CELPC) is now the main technique used to produce good quality speech at bit rates around 4. 8 kbps. However, the original CELPC is impractical in most cases due to its heavy computational load. A hybrid CELPC and Voice Excited Linear Predictive Coding (VELPC) scheme is presented in this paper for speech coding with lower complexity. In the algorithm, the speech signal is firstly divided into two parts, the base-band and the high-band respectively, in frequency domain, and then the base-band and the high-band signal are coded with CELPC and VELPC techniques respectively. The test experiments showed this new coder could produce synthesized speech with good quality at bit rates around 4.0 kbps.

Original language	English
Title of host publication	Proceedings Tencon '93: 1993 IEEE Region 10 Conference on "Computer, Communication, Control and Power Engineering"
Publisher	IEEE
Pages	291-294
ISBN (Print)	0780312333
DOIs	https://doi.org/10.1109/TENCON.1993.327979
Publication status	Published - Oct 1993
Event	1993 IEEE Region 10 Conference on Computer, Communication, Control and Power Engineering (TENCON '93) - Beijing, China Duration: 19 Oct 1993 → 21 Oct 1993

Conference

Conference	1993 IEEE Region 10 Conference on Computer, Communication, Control and Power Engineering (TENCON '93)
Place	China
City	Beijing
Period	19/10/93 → 21/10/93

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@inproceedings{22461a0d92ff41d6a3aad2ceb24e54bc,

title = "High quality speech coding based on hybrid CELPC and VELPC techniques",

abstract = "Code-Excited Linear Predictive Coding (CELPC) is now the main technique used to produce good quality speech at bit rates around 4. 8 kbps. However, the original CELPC is impractical in most cases due to its heavy computational load. A hybrid CELPC and Voice Excited Linear Predictive Coding (VELPC) scheme is presented in this paper for speech coding with lower complexity. In the algorithm, the speech signal is firstly divided into two parts, the base-band and the high-band respectively, in frequency domain, and then the base-band and the high-band signal are coded with CELPC and VELPC techniques respectively. The test experiments showed this new coder could produce synthesized speech with good quality at bit rates around 4.0 kbps.",

author = "Sam Kwong and Gang Wei and Ouyang, {Jing Zheng}",

year = "1993",

month = oct,

doi = "10.1109/TENCON.1993.327979",

language = "English",

isbn = "0780312333",

pages = "291--294",

booktitle = "Proceedings Tencon '93: 1993 IEEE Region 10 Conference on {"}Computer, Communication, Control and Power Engineering{"}",

publisher = "IEEE",

address = "United States",

note = "1993 IEEE Region 10 Conference on Computer, Communication, Control and Power Engineering (TENCON '93) ; Conference date: 19-10-1993 Through 21-10-1993",

}

Kwong, S, Wei, G & Ouyang, JZ 1993, High quality speech coding based on hybrid CELPC and VELPC techniques. in Proceedings Tencon '93: 1993 IEEE Region 10 Conference on "Computer, Communication, Control and Power Engineering". IEEE, pp. 291-294, 1993 IEEE Region 10 Conference on Computer, Communication, Control and Power Engineering (TENCON '93), Beijing, China, 19/10/93. https://doi.org/10.1109/TENCON.1993.327979

High quality speech coding based on hybrid CELPC and VELPC techniques. / Kwong, Sam; Wei, Gang; Ouyang, Jing Zheng.
Proceedings Tencon '93: 1993 IEEE Region 10 Conference on "Computer, Communication, Control and Power Engineering". IEEE, 1993. p. 291-294.

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - High quality speech coding based on hybrid CELPC and VELPC techniques

AU - Kwong, Sam

AU - Wei, Gang

AU - Ouyang, Jing Zheng

PY - 1993/10

Y1 - 1993/10

N2 - Code-Excited Linear Predictive Coding (CELPC) is now the main technique used to produce good quality speech at bit rates around 4. 8 kbps. However, the original CELPC is impractical in most cases due to its heavy computational load. A hybrid CELPC and Voice Excited Linear Predictive Coding (VELPC) scheme is presented in this paper for speech coding with lower complexity. In the algorithm, the speech signal is firstly divided into two parts, the base-band and the high-band respectively, in frequency domain, and then the base-band and the high-band signal are coded with CELPC and VELPC techniques respectively. The test experiments showed this new coder could produce synthesized speech with good quality at bit rates around 4.0 kbps.

AB - Code-Excited Linear Predictive Coding (CELPC) is now the main technique used to produce good quality speech at bit rates around 4. 8 kbps. However, the original CELPC is impractical in most cases due to its heavy computational load. A hybrid CELPC and Voice Excited Linear Predictive Coding (VELPC) scheme is presented in this paper for speech coding with lower complexity. In the algorithm, the speech signal is firstly divided into two parts, the base-band and the high-band respectively, in frequency domain, and then the base-band and the high-band signal are coded with CELPC and VELPC techniques respectively. The test experiments showed this new coder could produce synthesized speech with good quality at bit rates around 4.0 kbps.

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DO - 10.1109/TENCON.1993.327979

M3 - RGC 32 - Refereed conference paper (with host publication)

SN - 0780312333

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EP - 294

BT - Proceedings Tencon '93: 1993 IEEE Region 10 Conference on "Computer, Communication, Control and Power Engineering"

PB - IEEE

T2 - 1993 IEEE Region 10 Conference on Computer, Communication, Control and Power Engineering (TENCON '93)

Y2 - 19 October 1993 through 21 October 1993

ER -

High quality speech coding based on hybrid CELPC and VELPC techniques

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