Presentation 1996/9/13
Speech Coding Algorithm and Quality Assessment for V.70 Digital Simultaneous Voice and Data
Shinji Hayashi, Akitoshi Kataoka, Sachiko Kurihara,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) This paper presents the standardization activity in selecting a speech coding algorithm for the Digital Simultaneous Voice and Data system specified in ITU-T Recommendation V.70 that transmits voice and data simultaneously through the public telephone network with MODEM. The requirements for this system were toll speech quality, low complexity, and short delay time at low bit rate less than 12 kbit/s, and were not met by current speech coding standards. The reduced complexity CS-ACELP was selected from among 5 candidates as the coding algorithm after the subjective selection tests and was recommended as Annex A to G.729. The subjective test in Japanese shows that this Annex is compatible with G.729 and meets all the requirements.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) V.70 DSVD / V.34 MODEM / G.729 CS-ACELP / Medium low bit-rate speech coding
Paper # DSP-96-78,SP-96-53
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Conference Information
Committee DSP
Conference Date 1996/9/13(1days)
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Paper Information
Registration To Digital Signal Processing (DSP)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Speech Coding Algorithm and Quality Assessment for V.70 Digital Simultaneous Voice and Data
Sub Title (in English)
Keyword(1) V.70 DSVD
Keyword(2) V.34 MODEM
Keyword(3) G.729 CS-ACELP
Keyword(4) Medium low bit-rate speech coding
1st Author's Name Shinji Hayashi
1st Author's Affiliation Human Interface Laboratories. NTT()
2nd Author's Name Akitoshi Kataoka
2nd Author's Affiliation Human Interface Laboratories. NTT
3rd Author's Name Sachiko Kurihara
3rd Author's Affiliation Human Interface Laboratories. NTT
Date 1996/9/13
Paper # DSP-96-78,SP-96-53
Volume (vol) vol.96
Number (no) 239
Page pp.pp.-
#Pages 8
Date of Issue