Presentation	1995/11/16 MULTI-MODE CELP CODEC USING SHORT-TERM CHARACTERISTICS OF SPEECH Toshiyuki MORII, Naoya TANAKA, Kouji YOSHIDA,
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Abstract(in English)	We developed Variable Rate Codec for CDMA digital cellular System. The newly developed codec consists of CELP mode-codecs for each short-term characteristics of speech, and mode selector using neural networks (Multiple Layer Perceptron) for high performance under background noise condition and high/low input level condition. By listening test of decoded speech under noise free and error free condition, the proposed codec was proved to attain the nearly same quality of ITU-T G.728.
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Keyword(in English)	CELP / Variable Rate Codec / Multi-Mode Codec / Neural Networks
Paper #	SP95-80
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Conference Information
Committee	SP
Conference Date	1995/11/16(1days)
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Paper Information
Registration To	Speech (SP)
Language	JPN
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	MULTI-MODE CELP CODEC USING SHORT-TERM CHARACTERISTICS OF SPEECH
Sub Title (in English)
Keyword(1)	CELP
Keyword(2)	Variable Rate Codec
Keyword(3)	Multi-Mode Codec
Keyword(4)	Neural Networks
1st Author's Name	Toshiyuki MORII
1st Author's Affiliation	Matsushita Research Institute Tokyo, Inc.()
2nd Author's Name	Naoya TANAKA
2nd Author's Affiliation	Matsushita Communication Industrial Co., LTD.
3rd Author's Name	Kouji YOSHIDA
3rd Author's Affiliation	Matsushita Communication Industrial Co., LTD.
Date	1995/11/16
Paper #	SP95-80
Volume (vol)	vol.95
Number (no)	355
Page	pp.pp.-
#Pages	8
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