JPWO2008013135A1 - 音声データ復号装置 - Google Patents
音声データ復号装置 Download PDFInfo
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- JPWO2008013135A1 JPWO2008013135A1 JP2008526756A JP2008526756A JPWO2008013135A1 JP WO2008013135 A1 JPWO2008013135 A1 JP WO2008013135A1 JP 2008526756 A JP2008526756 A JP 2008526756A JP 2008526756 A JP2008526756 A JP 2008526756A JP WO2008013135 A1 JPWO2008013135 A1 JP WO2008013135A1
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- 230000005236 sound signal Effects 0.000 claims abstract description 150
- 238000012937 correction Methods 0.000 claims abstract description 40
- 238000001514 detection method Methods 0.000 claims abstract description 30
- 239000000284 extract Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 44
- 230000003044 adaptive effect Effects 0.000 claims description 22
- 238000001228 spectrum Methods 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 abstract description 16
- 238000003786 synthesis reaction Methods 0.000 abstract description 16
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 230000003595 spectral effect Effects 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 7
- 230000005055 memory storage Effects 0.000 description 6
- 239000000872 buffer Substances 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 206010002953 Aphonia Diseases 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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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
- G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
-
- 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
- G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
-
- 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
- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
- G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
Description
Claims (4)
- 音声データ中にロスがあるかを検出するロスディテクタと、
前記音声データを復号して第一復号音声信号を生成する音声データデコーダと、
前記第一復号音声信号から第一パラメータを抽出する音声データアナライザと、
前記ロス検出の結果に基づいて、前記第一パラメータを修正するパラメータ修正部と、
修正された前記第一パラメータを用いて第一合成音声信号を生成する音声合成部と
を具備する
波形符号化方式による音声データ復号装置。 - 前記ロス検出の結果に基づいて、前記第一復号音声信号及び前記第一合成音声信号を含む音声信号を前記第一復号音声信号の強度の前記第一合成音声信号に対する強度に対する比率を変えながら出力する音声信号出力部
を更に具備する
請求の範囲1の音声データ復号装置。 - 音声信号出力部を更に具備し、
前記ロスディテクタは、前記音声信号出力部が前記ロスを補間する音声信号を出力する前に前記ロス後の音声フレームを受信したかを検出し、
前記音声データデコーダは、前記音声フレームを復号して第二復号音声信号を生成し、
前記音声データアナライザは、前記第二復号音声信号の時間を反転させて第二パラメータを抽出し、
前記パラメータ修正部は、前記第二パラメータに所定の修正を行い、
前記音声合成部は、修正された前記第二パラメータを用いて第二合成音声信号を生成し、
前記音声信号出力部は、前記ロス検出の結果に基づいて、前記第一復号音声信号を出力し、前記第一合成音声信号と前記第二合成音声信号を含む音声信号を前記第一合成音声信号の強度の前記第二合成音声信号の強度に対する比率が変化するように出力する
請求の範囲1の音声データ復号装置。 - 前記第一パラメータが、スペクトルパラメータ、遅延パラメータ、適応コードブックゲイン、正規化残差信号、または正規化残差信号ゲインである
請求の範囲1乃至3のいずれかに記載の音声データ復号装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006204781 | 2006-07-27 | ||
JP2006204781 | 2006-07-27 | ||
PCT/JP2007/064421 WO2008013135A1 (fr) | 2006-07-27 | 2007-07-23 | Dispositif de décodage de données audio |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2008013135A1 true JPWO2008013135A1 (ja) | 2009-12-17 |
JP4678440B2 JP4678440B2 (ja) | 2011-04-27 |
Family
ID=38981447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008526756A Expired - Fee Related JP4678440B2 (ja) | 2006-07-27 | 2007-07-23 | 音声データ復号装置 |
Country Status (10)
Country | Link |
---|---|
US (1) | US8327209B2 (ja) |
EP (1) | EP2051243A4 (ja) |
JP (1) | JP4678440B2 (ja) |
KR (1) | KR101032805B1 (ja) |
CN (1) | CN101490749B (ja) |
BR (1) | BRPI0713809A2 (ja) |
CA (1) | CA2658962A1 (ja) |
MX (1) | MX2009000054A (ja) |
RU (1) | RU2009102043A (ja) |
WO (1) | WO2008013135A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102615154B1 (ko) | 2019-02-28 | 2023-12-18 | 삼성전자주식회사 | 전자 장치 및 전자 장치의 제어 방법 |
US11495243B2 (en) * | 2020-07-30 | 2022-11-08 | Lawrence Livermore National Security, Llc | Localization based on time-reversed event sounds |
KR20230140955A (ko) * | 2022-03-30 | 2023-10-10 | 삼성전자주식회사 | 음성 안내 기능을 갖는 전자 장치 및 전자 장치에 의한 음성 안내 방법 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08110798A (ja) * | 1994-10-07 | 1996-04-30 | Nippon Telegr & Teleph Corp <Ntt> | 音声の復号化方法およびその装置 |
JPH09321783A (ja) * | 1996-03-29 | 1997-12-12 | Mitsubishi Electric Corp | 音声符号化伝送システム |
JP2005077889A (ja) * | 2003-09-02 | 2005-03-24 | Kazuhiro Kondo | 音声パケット欠落補間方式 |
Family Cites Families (18)
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JP2539494B2 (ja) * | 1988-07-13 | 1996-10-02 | 沖電気工業株式会社 | 音声パケット補間方法 |
JP2655485B2 (ja) * | 1994-06-24 | 1997-09-17 | 日本電気株式会社 | 音声セル符号化装置 |
JPH09231783A (ja) * | 1996-02-26 | 1997-09-05 | Sharp Corp | 半導体記憶装置 |
JP2000512036A (ja) | 1997-02-10 | 2000-09-12 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 音声信号を伝送する通信回路網 |
JP3235654B2 (ja) * | 1997-11-18 | 2001-12-04 | 日本電気株式会社 | 無線電話装置 |
JP3472704B2 (ja) | 1998-04-23 | 2003-12-02 | シャープ株式会社 | 音声分析器および音声分析合成器 |
US6952668B1 (en) * | 1999-04-19 | 2005-10-04 | At&T Corp. | Method and apparatus for performing packet loss or frame erasure concealment |
JP2001177481A (ja) * | 1999-12-21 | 2001-06-29 | Sanyo Electric Co Ltd | 復号化装置 |
KR100341823B1 (ko) | 2000-02-21 | 2002-06-26 | 윤덕용 | 유무선 영상 통신시스템에서의 비트에러확률 기준값설정방법 |
FR2813722B1 (fr) * | 2000-09-05 | 2003-01-24 | France Telecom | Procede et dispositif de dissimulation d'erreurs et systeme de transmission comportant un tel dispositif |
JP2002268697A (ja) | 2001-03-13 | 2002-09-20 | Nec Corp | パケット誤り耐性付き音声復号装置、音声符号化復号装置、及びその方法 |
KR100462024B1 (ko) | 2002-12-09 | 2004-12-17 | 한국전자통신연구원 | 부가 음성 데이터를 이용한 패킷 손실 복구 방법 및 이를이용한 송수신기 |
US7411985B2 (en) * | 2003-03-21 | 2008-08-12 | Lucent Technologies Inc. | Low-complexity packet loss concealment method for voice-over-IP speech transmission |
US7596488B2 (en) * | 2003-09-15 | 2009-09-29 | Microsoft Corporation | System and method for real-time jitter control and packet-loss concealment in an audio signal |
JP2005274917A (ja) | 2004-03-24 | 2005-10-06 | Mitsubishi Electric Corp | 音声復号装置 |
KR100594599B1 (ko) | 2004-07-02 | 2006-06-30 | 한국전자통신연구원 | 수신단 기반의 패킷 손실 복구 장치 및 그 방법 |
US7359409B2 (en) * | 2005-02-02 | 2008-04-15 | Texas Instruments Incorporated | Packet loss concealment for voice over packet networks |
US7930176B2 (en) * | 2005-05-20 | 2011-04-19 | Broadcom Corporation | Packet loss concealment for block-independent speech codecs |
-
2007
- 2007-07-23 WO PCT/JP2007/064421 patent/WO2008013135A1/ja active Application Filing
- 2007-07-23 KR KR1020097001434A patent/KR101032805B1/ko not_active IP Right Cessation
- 2007-07-23 EP EP07791154A patent/EP2051243A4/en not_active Withdrawn
- 2007-07-23 RU RU2009102043/08A patent/RU2009102043A/ru not_active Application Discontinuation
- 2007-07-23 JP JP2008526756A patent/JP4678440B2/ja not_active Expired - Fee Related
- 2007-07-23 US US12/309,597 patent/US8327209B2/en not_active Expired - Fee Related
- 2007-07-23 CA CA002658962A patent/CA2658962A1/en not_active Abandoned
- 2007-07-23 MX MX2009000054A patent/MX2009000054A/es not_active Application Discontinuation
- 2007-07-23 BR BRPI0713809-1A patent/BRPI0713809A2/pt not_active Application Discontinuation
- 2007-07-23 CN CN2007800276772A patent/CN101490749B/zh not_active Expired - Fee Related
Patent Citations (3)
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JPH08110798A (ja) * | 1994-10-07 | 1996-04-30 | Nippon Telegr & Teleph Corp <Ntt> | 音声の復号化方法およびその装置 |
JPH09321783A (ja) * | 1996-03-29 | 1997-12-12 | Mitsubishi Electric Corp | 音声符号化伝送システム |
JP2005077889A (ja) * | 2003-09-02 | 2005-03-24 | Kazuhiro Kondo | 音声パケット欠落補間方式 |
Non-Patent Citations (8)
Title |
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CSNG200600845080, 近藤和弘 他, ""線形予測を用いた音声パケット欠落補間方式の一検討"", 日本音響学会2003年秋季研究発表会講演論文集−I−, 20030917, p.187−188 * |
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JPN6010054550, 森永徹 他, ""広帯域IP網におけるパケット消失に耐性のある音声符号化"", 電子情報通信学会2001年総合大会講演論文集 通信2, 20010307, p.377 * |
JPN6010054551, 芹沢昌宏 他, ""遅延パケットを用いたフィルタメモリ修復によるCELP復号音質改善方法"", 電子情報通信学会2001年情報・システムソサイエティ大会講演論文集, 20010829, p.234 * |
JPN6010054553, 近藤和弘 他, ""線形予測を用いた音声パケット欠落補間方式の一検討"", 日本音響学会2003年秋季研究発表会講演論文集−I−, 20030917, p.187−188 * |
Also Published As
Publication number | Publication date |
---|---|
KR20090025355A (ko) | 2009-03-10 |
US8327209B2 (en) | 2012-12-04 |
BRPI0713809A2 (pt) | 2012-11-06 |
JP4678440B2 (ja) | 2011-04-27 |
CN101490749A (zh) | 2009-07-22 |
EP2051243A4 (en) | 2010-12-22 |
MX2009000054A (es) | 2009-01-23 |
EP2051243A1 (en) | 2009-04-22 |
RU2009102043A (ru) | 2010-07-27 |
KR101032805B1 (ko) | 2011-05-04 |
US20100005362A1 (en) | 2010-01-07 |
CN101490749B (zh) | 2012-04-11 |
CA2658962A1 (en) | 2008-01-31 |
WO2008013135A1 (fr) | 2008-01-31 |
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