KR100715014B1 - 트랜스코더 및 부호변환방법 - Google Patents

트랜스코더 및 부호변환방법 Download PDF

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Publication number
KR100715014B1
KR100715014B1 KR1020057007432A KR20057007432A KR100715014B1 KR 100715014 B1 KR100715014 B1 KR 100715014B1 KR 1020057007432 A KR1020057007432 A KR 1020057007432A KR 20057007432 A KR20057007432 A KR 20057007432A KR 100715014 B1 KR100715014 B1 KR 100715014B1
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KR
South Korea
Prior art keywords
signal
gain
output
outputting
code
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KR1020057007432A
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English (en)
Korean (ko)
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KR20050061579A (ko
Inventor
가즈노리 오자와
Original Assignee
닛본 덴끼 가부시끼가이샤
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Publication of KR20050061579A publication Critical patent/KR20050061579A/ko
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Publication of KR100715014B1 publication Critical patent/KR100715014B1/ko

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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/173—Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques

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  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
KR1020057007432A 2002-10-31 2003-10-08 트랜스코더 및 부호변환방법 KR100715014B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JPJP-P-2002-00317204 2002-10-31
JP2002317204A JP4438280B2 (ja) 2002-10-31 2002-10-31 トランスコーダ及び符号変換方法

Publications (2)

Publication Number Publication Date
KR20050061579A KR20050061579A (ko) 2005-06-22
KR100715014B1 true KR100715014B1 (ko) 2007-05-09

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ID=32211714

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020057007432A KR100715014B1 (ko) 2002-10-31 2003-10-08 트랜스코더 및 부호변환방법

Country Status (9)

Country Link
EP (1) EP1564723B1 (de)
JP (1) JP4438280B2 (de)
KR (1) KR100715014B1 (de)
CN (1) CN100498933C (de)
AU (1) AU2003271119A1 (de)
CA (1) CA2504174A1 (de)
DE (1) DE60321712D1 (de)
HK (1) HK1077913A1 (de)
WO (1) WO2004040552A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007064256A2 (en) * 2005-11-30 2007-06-07 Telefonaktiebolaget Lm Ericsson (Publ) Efficient speech stream conversion
DE102008009720A1 (de) * 2008-02-19 2009-08-20 Siemens Enterprise Communications Gmbh & Co. Kg Verfahren und Mittel zur Dekodierung von Hintergrundrauschinformationen
CN104751849B (zh) 2013-12-31 2017-04-19 华为技术有限公司 语音频码流的解码方法及装置
CN107369454B (zh) 2014-03-21 2020-10-27 华为技术有限公司 语音频码流的解码方法及装置
CN105869653B (zh) * 2016-05-31 2019-07-12 华为技术有限公司 话音信号处理方法和相关装置和系统

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08123495A (ja) * 1994-10-28 1996-05-17 Mitsubishi Electric Corp 広帯域音声復元装置
KR20010102004A (ko) * 1999-02-12 2001-11-15 밀러 럿셀 비 Ｃｅｌｐ 트랜스코딩

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3297156B2 (ja) * 1993-08-17 2002-07-02 三菱電機株式会社 音声判別装置
JP3189614B2 (ja) * 1995-03-13 2001-07-16 松下電器産業株式会社 音声帯域拡大装置
JPH0918347A (ja) * 1995-06-28 1997-01-17 Oki Electric Ind Co Ltd 音声符号化方式変換装置
JP4296622B2 (ja) * 1998-10-26 2009-07-15 ソニー株式会社 エコー消去装置及び方法、並びに音声再生装置
JP4135242B2 (ja) * 1998-12-18 2008-08-20 ソニー株式会社 受信装置及び方法、通信装置及び方法
JP2000206995A (ja) * 1999-01-11 2000-07-28 Sony Corp 受信装置及び方法、通信装置及び方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08123495A (ja) * 1994-10-28 1996-05-17 Mitsubishi Electric Corp 広帯域音声復元装置
KR20010102004A (ko) * 1999-02-12 2001-11-15 밀러 럿셀 비 Ｃｅｌｐ 트랜스코딩

Also Published As

Publication number Publication date
JP4438280B2 (ja) 2010-03-24
EP1564723B1 (de) 2008-06-18
EP1564723A1 (de) 2005-08-17
HK1077913A1 (en) 2006-02-24
KR20050061579A (ko) 2005-06-22
EP1564723A4 (de) 2005-12-21
CA2504174A1 (en) 2004-05-13
CN100498933C (zh) 2009-06-10
AU2003271119A1 (en) 2004-05-25
WO2004040552A1 (ja) 2004-05-13
JP2004151424A (ja) 2004-05-27
DE60321712D1 (de) 2008-07-31
CN1708786A (zh) 2005-12-14

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