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

^*Corresponding author for this work

Research output: Book Chapters | Papers in Conference Proceedings › Conference paper (refereed) › Research › 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 of TENCON '93. IEEE Region 10 International Conference on Computers, Communications and Automation
Publisher	IEEE
Pages	291-294
Number of pages	4
ISBN (Print)	0780312333
DOIs	https://doi.org/10.1109/TENCON.1993.327979
Publication status	Published - 1993
Externally published	Yes
Event	1993 IEEE Region 10 Conference on Computer, Communication, Control aand Power Engineering - Beijing, China, China Duration: 19 Oct 1993 → 21 Oct 1993

Conference

Conference	1993 IEEE Region 10 Conference on Computer, Communication, Control aand Power Engineering
Country/Territory	China
City	Beijing, China
Period	19/10/93 → 21/10/93

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10.1109/TENCON.1993.327979

Cite this

@inproceedings{c0c695c9620d4d0699b9199e496fc46f,

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",

doi = "10.1109/TENCON.1993.327979",

language = "English",

isbn = "0780312333",

pages = "291--294",

booktitle = "Proceedings of TENCON '93. IEEE Region 10 International Conference on Computers, Communications and Automation",

publisher = "IEEE",

note = "1993 IEEE Region 10 Conference on Computer, Communication, Control aand Power Engineering ; 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 of TENCON '93. IEEE Region 10 International Conference on Computers, Communications and Automation. IEEE, pp. 291-294, 1993 IEEE Region 10 Conference on Computer, Communication, Control aand Power Engineering, Beijing, China, 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 of TENCON '93. IEEE Region 10 International Conference on Computers, Communications and Automation. IEEE, 1993. p. 291-294.

Research output: Book Chapters | Papers in Conference Proceedings › Conference paper (refereed) › Research › 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

Y1 - 1993

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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U2 - 10.1109/TENCON.1993.327979

DO - 10.1109/TENCON.1993.327979

M3 - Conference paper (refereed)

AN - SCOPUS:0027719247

SN - 0780312333

SP - 291

EP - 294

BT - Proceedings of TENCON '93. IEEE Region 10 International Conference on Computers, Communications and Automation

PB - IEEE

T2 - 1993 IEEE Region 10 Conference on Computer, Communication, Control aand Power Engineering

Y2 - 19 October 1993 through 21 October 1993

ER -

High quality speech coding based on hybrid CELPC and VELPC techniques

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