Presentation 1993/11/25
Pitch Synchronous Innovation CELP (PSI-CELP) : PDC half-rate speech CODEC
Tomoyuki Ohya, Hirohito Suda, Toshio Miki,
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Abstract(in English) Pitch Synchronous Innovation-CELP(PSI-CELP),which is proposed by NTT DoCoMo,is adopted as the half-rate PDC(Personal Digital Cellular) speech codec standard.This algorithm is based on CELP(Code Excited Linear Prediction) with pitch synchronized excitation source.It uses 3.45 kbit, s out of 5.6 kbit/s for speech coding and the rest of 2.15 kbit/s for error protection.In this paper,a summary of PSI-CELP algorithm is described.Then the techniques to improve speech quality,to reduce computational complexity,and to reduce memory requirements are mentioned.A real time operating prototype is also described.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) PSI-CELP / PDC / half-rate sppech codec / digital cellular radio
Paper # RCS93-78
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Committee RCS
Conference Date 1993/11/25(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Pitch Synchronous Innovation CELP (PSI-CELP) : PDC half-rate speech CODEC
Sub Title (in English)
Keyword(1) PSI-CELP
Keyword(2) PDC
Keyword(3) half-rate sppech codec
Keyword(4) digital cellular radio
1st Author's Name Tomoyuki Ohya
1st Author's Affiliation NTT DoCoMo()
2nd Author's Name Hirohito Suda
2nd Author's Affiliation NTT DoCoMo
3rd Author's Name Toshio Miki
3rd Author's Affiliation NTT DoCoMo
Date 1993/11/25
Paper # RCS93-78
Volume (vol) vol.93
Number (no) 344
Page pp.pp.-
#Pages 8
Date of Issue