Dual-pulse CS-CELP

a toll-quality low-complexity speech coder at 7.8 kbit/s

Hitoshi Ohmuro, Jotaro Ikedo, Takehiro Moriya, Akitoshi Kataoka, Shinji Hayashi, Kazunori Mano

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Low-cost highly-efficient speech coding is important for personal multimedia communications. In this paper we propose a new low-complexity speech coding method called 'Dual-Pulse CS-CELP (DP-CS-CELP)' at 7.8 kbit/s. This method is based on ITU-T G.729. To reduce the complexity, we applied a new excitation model to the random code vectors and simplified the LPC coding, adaptive codebook search, perceptual weighting, and the other structures. The number of operations for this encoder is 3.80 MOPS, which achieves real-time speech coding and decoding on personal computers. Although the efficiency of this coder is a little lower than that of G.729, the MOS listening test showed that the subjective quality was equivalent to or a little better than that of G.726 (32-kbit/s ADPCM).

Original languageEnglish
Title of host publicationICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
PublisherIEEE
Pages558-561
Number of pages4
Volume1
Publication statusPublished - 1996
Externally publishedYes
EventProceedings of the 1996 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP. Part 1 (of 6) - Atlanta, GA, USA
Duration: 1996 May 71996 May 10

Other

OtherProceedings of the 1996 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP. Part 1 (of 6)
CityAtlanta, GA, USA
Period96/5/796/5/10

Fingerprint

Speech coding
coders
coding
pulses
man operated propulsion systems
Personal computers
Decoding
personal computers
multimedia
decoding
communication
Communication
Costs
excitation

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering
  • Acoustics and Ultrasonics

Cite this

Ohmuro, H., Ikedo, J., Moriya, T., Kataoka, A., Hayashi, S., & Mano, K. (1996). Dual-pulse CS-CELP: a toll-quality low-complexity speech coder at 7.8 kbit/s. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings (Vol. 1, pp. 558-561). IEEE.

Dual-pulse CS-CELP : a toll-quality low-complexity speech coder at 7.8 kbit/s. / Ohmuro, Hitoshi; Ikedo, Jotaro; Moriya, Takehiro; Kataoka, Akitoshi; Hayashi, Shinji; Mano, Kazunori.

ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. Vol. 1 IEEE, 1996. p. 558-561.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ohmuro, H, Ikedo, J, Moriya, T, Kataoka, A, Hayashi, S & Mano, K 1996, Dual-pulse CS-CELP: a toll-quality low-complexity speech coder at 7.8 kbit/s. in ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. vol. 1, IEEE, pp. 558-561, Proceedings of the 1996 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP. Part 1 (of 6), Atlanta, GA, USA, 96/5/7.
Ohmuro H, Ikedo J, Moriya T, Kataoka A, Hayashi S, Mano K. Dual-pulse CS-CELP: a toll-quality low-complexity speech coder at 7.8 kbit/s. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. Vol. 1. IEEE. 1996. p. 558-561
Ohmuro, Hitoshi ; Ikedo, Jotaro ; Moriya, Takehiro ; Kataoka, Akitoshi ; Hayashi, Shinji ; Mano, Kazunori. / Dual-pulse CS-CELP : a toll-quality low-complexity speech coder at 7.8 kbit/s. ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. Vol. 1 IEEE, 1996. pp. 558-561
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