JPH11502318A - 分析/合成線形予測音声コーダ - Google Patents
分析/合成線形予測音声コーダInfo
- Publication number
- JPH11502318A JPH11502318A JP8528325A JP52832596A JPH11502318A JP H11502318 A JPH11502318 A JP H11502318A JP 8528325 A JP8528325 A JP 8528325A JP 52832596 A JP52832596 A JP 52832596A JP H11502318 A JPH11502318 A JP H11502318A
- Authority
- JP
- Japan
- Prior art keywords
- excitation
- pulse
- bits
- speech coder
- code book
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004458 analytical method Methods 0.000 title claims abstract description 27
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 21
- 238000003786 synthesis reaction Methods 0.000 title claims abstract description 21
- 230000005284 excitation Effects 0.000 claims abstract description 111
- 230000003044 adaptive effect Effects 0.000 claims description 18
- 239000013598 vector Substances 0.000 description 45
- 230000035945 sensitivity Effects 0.000 description 35
- 239000011159 matrix material Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 13
- 230000004044 response Effects 0.000 description 5
- 230000009466 transformation Effects 0.000 description 5
- 238000005314 correlation function Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- 230000005236 sound signal Effects 0.000 description 3
- 240000006829 Ficus sundaica Species 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 238000013139 quantization Methods 0.000 description 2
- 101710170230 Antimicrobial peptide 1 Proteins 0.000 description 1
- 101710170231 Antimicrobial peptide 2 Proteins 0.000 description 1
- 101000713598 Halobacterium salinarum (strain ATCC 700922 / JCM 11081 / NRC-1) TATA-box-binding protein E Proteins 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000005311 autocorrelation function Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
Classifications
-
- 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
- G10L13/00—Speech synthesis; Text to speech systems
-
- 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
- G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.分析/合成線形予測音声コーダであって、合成部が、 マルチ・パルス励起(MPE)を生成する手段(34)と、 変換二進パルス励起(TBPE)を生成する手段(36)と、 前記マルチ・パルス励起と前記変換二進パルス励起とを組み合わせる手段(3 8)と、 から成ることを特徴とする分析/合成線形予測音声コーダ。 2.請求項1記載の音声コーダにおいて、前記マルチ・パルス励起(MPE) 生成手段(34)は、制限されたパルス位置においてパルスを発生する手段を備 えていることを特徴とする音声コーダ。 3.請求項2記載の音声コーダにおいて、前記マルチ・パルス励起(MPE) 生成手段(34)は、位相位置コーディング手段を備えていることを特徴とする 音声コーダ。 4.請求項1、2または3記載の音声コーダにおいて、前記合成部は、更に、 適応励起を生成する適応コード・ブック(14)を備えていることを特徴とする 音声コーダ。 5.請求項4記載の音声コーダにおいて、前記マルチ・パルス(MPE)励起 、変換二進パルス(TBPE)励起および適応励起を組み合わせる手段(18、 38;gI,gM,gT)を特徴とする音声コーダ。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9501026-0 | 1995-03-22 | ||
SE9501026A SE506379C3 (sv) | 1995-03-22 | 1995-03-22 | Lpc-talkodare med kombinerad excitation |
PCT/SE1996/000296 WO1996029696A1 (en) | 1995-03-22 | 1996-03-06 | Analysis-by-synthesis linear predictive speech coder |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH11502318A true JPH11502318A (ja) | 1999-02-23 |
JP3841224B2 JP3841224B2 (ja) | 2006-11-01 |
Family
ID=20397640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52832596A Expired - Lifetime JP3841224B2 (ja) | 1995-03-22 | 1996-03-06 | 分析/合成線形予測音声コーダ |
Country Status (11)
Country | Link |
---|---|
US (1) | US5991717A (ja) |
EP (1) | EP0815554B1 (ja) |
JP (1) | JP3841224B2 (ja) |
KR (1) | KR100368897B1 (ja) |
AU (1) | AU699787B2 (ja) |
CA (1) | CA2214672C (ja) |
DE (1) | DE69613360T2 (ja) |
ES (1) | ES2162038T3 (ja) |
RU (1) | RU2163399C2 (ja) |
SE (1) | SE506379C3 (ja) |
WO (1) | WO1996029696A1 (ja) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013539548A (ja) * | 2010-07-30 | 2013-10-24 | クゥアルコム・インコーポレイテッド | 複数段階の形状ベクトル量子化のためのシステム、方法、装置、およびコンピュータ可読媒体 |
RU2547241C1 (ru) * | 2011-02-14 | 2015-04-10 | Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. | Аудиокодек, поддерживающий режимы кодирования во временной области и в частотной области |
US9047859B2 (en) | 2011-02-14 | 2015-06-02 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for encoding and decoding an audio signal using an aligned look-ahead portion |
US9153236B2 (en) | 2011-02-14 | 2015-10-06 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Audio codec using noise synthesis during inactive phases |
US9208792B2 (en) | 2010-08-17 | 2015-12-08 | Qualcomm Incorporated | Systems, methods, apparatus, and computer-readable media for noise injection |
RU2586597C2 (ru) * | 2011-02-14 | 2016-06-10 | Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. | Кодирование и декодирование позиций импульсов дорожек аудиосигнала |
US9384739B2 (en) | 2011-02-14 | 2016-07-05 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for error concealment in low-delay unified speech and audio coding |
US9536530B2 (en) | 2011-02-14 | 2017-01-03 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Information signal representation using lapped transform |
US9583110B2 (en) | 2011-02-14 | 2017-02-28 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for processing a decoded audio signal in a spectral domain |
US9595262B2 (en) | 2011-02-14 | 2017-03-14 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Linear prediction based coding scheme using spectral domain noise shaping |
US9620129B2 (en) | 2011-02-14 | 2017-04-11 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for coding a portion of an audio signal using a transient detection and a quality result |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI955266A (fi) * | 1995-11-02 | 1997-05-03 | Nokia Telecommunications Oy | Menetelmä ja laitteisto viestien välittämiseksi tietoliikennejärjestelmässä |
JP3199020B2 (ja) | 1998-02-27 | 2001-08-13 | 日本電気株式会社 | 音声音楽信号の符号化装置および復号装置 |
FI113571B (fi) * | 1998-03-09 | 2004-05-14 | Nokia Corp | Puheenkoodaus |
FR2776447B1 (fr) * | 1998-03-23 | 2000-05-12 | Comsis | Codage source-canal conjoint en blocs |
CN1167048C (zh) * | 1998-06-09 | 2004-09-15 | 松下电器产业株式会社 | 语音编码设备和语音解码设备 |
SE521225C2 (sv) * | 1998-09-16 | 2003-10-14 | Ericsson Telefon Ab L M | Förfarande och anordning för CELP-kodning/avkodning |
US6292917B1 (en) * | 1998-09-30 | 2001-09-18 | Agere Systems Guardian Corp. | Unequal error protection for digital broadcasting using channel classification |
JP4008607B2 (ja) | 1999-01-22 | 2007-11-14 | 株式会社東芝 | 音声符号化/復号化方法 |
US7272553B1 (en) * | 1999-09-08 | 2007-09-18 | 8X8, Inc. | Varying pulse amplitude multi-pulse analysis speech processor and method |
EP1131928A1 (fr) * | 1999-09-21 | 2001-09-12 | Comsis | Codage source-canal conjoint en blocs |
US6529867B2 (en) * | 2000-09-15 | 2003-03-04 | Conexant Systems, Inc. | Injecting high frequency noise into pulse excitation for low bit rate CELP |
SE519976C2 (sv) * | 2000-09-15 | 2003-05-06 | Ericsson Telefon Ab L M | Kodning och avkodning av signaler från flera kanaler |
SE0004818D0 (sv) * | 2000-12-22 | 2000-12-22 | Coding Technologies Sweden Ab | Enhancing source coding systems by adaptive transposition |
FI119955B (fi) * | 2001-06-21 | 2009-05-15 | Nokia Corp | Menetelmä, kooderi ja laite puheenkoodaukseen synteesi-analyysi puhekoodereissa |
KR20050028193A (ko) * | 2003-09-17 | 2005-03-22 | 삼성전자주식회사 | 오디오 신호에 적응적으로 부가 정보를 삽입하기 위한방법, 오디오 신호에 삽입된 부가 정보의 재생 방법, 및그 장치와 이를 구현하기 위한 프로그램이 기록된 기록 매체 |
US20080275709A1 (en) * | 2004-06-22 | 2008-11-06 | Koninklijke Philips Electronics, N.V. | Audio Encoding and Decoding |
DE102005000830A1 (de) * | 2005-01-05 | 2006-07-13 | Siemens Ag | Verfahren zur Bandbreitenerweiterung |
US20120045001A1 (en) * | 2008-08-13 | 2012-02-23 | Shaohua Li | Method of Generating a Codebook |
RU2495504C1 (ru) * | 2012-06-25 | 2013-10-10 | Государственное казенное образовательное учреждение высшего профессионального образования Академия Федеральной службы охраны Российской Федерации (Академия ФСО России) | Способ снижения скорости передачи низкоскоростных вокодеров с линейным предсказанием |
BR112015025009B1 (pt) * | 2013-04-05 | 2021-12-21 | Dolby International Ab | Unidades de quantização e quantização inversa, codificador e decodificador, métodos para quantizar e dequantizar |
US10043528B2 (en) * | 2013-04-05 | 2018-08-07 | Dolby International Ab | Audio encoder and decoder |
RU2631968C2 (ru) * | 2015-07-08 | 2017-09-29 | Федеральное государственное казенное военное образовательное учреждение высшего образования "Академия Федеральной службы охраны Российской Федерации" (Академия ФСО России) | Способ низкоскоростного кодирования и декодирования речевого сигнала |
TWI723545B (zh) * | 2019-09-17 | 2021-04-01 | 宏碁股份有限公司 | 語音處理方法及其裝置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8500843A (nl) * | 1985-03-22 | 1986-10-16 | Koninkl Philips Electronics Nv | Multipuls-excitatie lineair-predictieve spraakcoder. |
CA1323934C (en) * | 1986-04-15 | 1993-11-02 | Tetsu Taguchi | Speech processing apparatus |
CA1337217C (en) * | 1987-08-28 | 1995-10-03 | Daniel Kenneth Freeman | Speech coding |
SE463691B (sv) * | 1989-05-11 | 1991-01-07 | Ericsson Telefon Ab L M | Foerfarande att utplacera excitationspulser foer en lineaerprediktiv kodare (lpc) som arbetar enligt multipulsprincipen |
JPH0612098A (ja) * | 1992-03-16 | 1994-01-21 | Sanyo Electric Co Ltd | 音声符号化装置 |
JP3328080B2 (ja) * | 1994-11-22 | 2002-09-24 | 沖電気工業株式会社 | コード励振線形予測復号器 |
-
1995
- 1995-03-22 SE SE9501026A patent/SE506379C3/sv not_active IP Right Cessation
-
1996
- 1996-03-06 JP JP52832596A patent/JP3841224B2/ja not_active Expired - Lifetime
- 1996-03-06 WO PCT/SE1996/000296 patent/WO1996029696A1/en active IP Right Grant
- 1996-03-06 ES ES96908412T patent/ES2162038T3/es not_active Expired - Lifetime
- 1996-03-06 DE DE69613360T patent/DE69613360T2/de not_active Expired - Lifetime
- 1996-03-06 RU RU97117357/09A patent/RU2163399C2/ru active
- 1996-03-06 KR KR1019970706601A patent/KR100368897B1/ko not_active IP Right Cessation
- 1996-03-06 AU AU51654/96A patent/AU699787B2/en not_active Expired
- 1996-03-06 CA CA002214672A patent/CA2214672C/en not_active Expired - Lifetime
- 1996-03-06 EP EP96908412A patent/EP0815554B1/en not_active Expired - Lifetime
-
1997
- 1997-09-05 US US08/924,877 patent/US5991717A/en not_active Expired - Lifetime
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8831933B2 (en) | 2010-07-30 | 2014-09-09 | Qualcomm Incorporated | Systems, methods, apparatus, and computer-readable media for multi-stage shape vector quantization |
US8924222B2 (en) | 2010-07-30 | 2014-12-30 | Qualcomm Incorporated | Systems, methods, apparatus, and computer-readable media for coding of harmonic signals |
JP2013539548A (ja) * | 2010-07-30 | 2013-10-24 | クゥアルコム・インコーポレイテッド | 複数段階の形状ベクトル量子化のためのシステム、方法、装置、およびコンピュータ可読媒体 |
US9236063B2 (en) | 2010-07-30 | 2016-01-12 | Qualcomm Incorporated | Systems, methods, apparatus, and computer-readable media for dynamic bit allocation |
US9208792B2 (en) | 2010-08-17 | 2015-12-08 | Qualcomm Incorporated | Systems, methods, apparatus, and computer-readable media for noise injection |
RU2547241C1 (ru) * | 2011-02-14 | 2015-04-10 | Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. | Аудиокодек, поддерживающий режимы кодирования во временной области и в частотной области |
US9153236B2 (en) | 2011-02-14 | 2015-10-06 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Audio codec using noise synthesis during inactive phases |
US9047859B2 (en) | 2011-02-14 | 2015-06-02 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for encoding and decoding an audio signal using an aligned look-ahead portion |
RU2586597C2 (ru) * | 2011-02-14 | 2016-06-10 | Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. | Кодирование и декодирование позиций импульсов дорожек аудиосигнала |
US9384739B2 (en) | 2011-02-14 | 2016-07-05 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for error concealment in low-delay unified speech and audio coding |
US9536530B2 (en) | 2011-02-14 | 2017-01-03 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Information signal representation using lapped transform |
US9583110B2 (en) | 2011-02-14 | 2017-02-28 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for processing a decoded audio signal in a spectral domain |
US9595263B2 (en) | 2011-02-14 | 2017-03-14 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Encoding and decoding of pulse positions of tracks of an audio signal |
US9595262B2 (en) | 2011-02-14 | 2017-03-14 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Linear prediction based coding scheme using spectral domain noise shaping |
US9620129B2 (en) | 2011-02-14 | 2017-04-11 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for coding a portion of an audio signal using a transient detection and a quality result |
Also Published As
Publication number | Publication date |
---|---|
US5991717A (en) | 1999-11-23 |
SE9501026D0 (sv) | 1995-03-22 |
WO1996029696A1 (en) | 1996-09-26 |
KR100368897B1 (ko) | 2003-04-11 |
RU2163399C2 (ru) | 2001-02-20 |
CA2214672A1 (en) | 1996-09-26 |
SE9501026L (sv) | 1996-09-23 |
EP0815554B1 (en) | 2001-06-13 |
DE69613360D1 (de) | 2001-07-19 |
CA2214672C (en) | 2005-07-05 |
SE506379C2 (sv) | 1997-12-08 |
ES2162038T3 (es) | 2001-12-16 |
DE69613360T2 (de) | 2001-10-11 |
JP3841224B2 (ja) | 2006-11-01 |
AU5165496A (en) | 1996-10-08 |
EP0815554A1 (en) | 1998-01-07 |
AU699787B2 (en) | 1998-12-17 |
KR19980703198A (ko) | 1998-10-15 |
SE506379C3 (sv) | 1998-01-19 |
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