ZA200302468B - Apparatus for bandwidth expansion of a speech signal. - Google Patents
Apparatus for bandwidth expansion of a speech signal. Download PDFInfo
- Publication number
- ZA200302468B ZA200302468B ZA200302468A ZA200302468A ZA200302468B ZA 200302468 B ZA200302468 B ZA 200302468B ZA 200302468 A ZA200302468 A ZA 200302468A ZA 200302468 A ZA200302468 A ZA 200302468A ZA 200302468 B ZA200302468 B ZA 200302468B
- Authority
- ZA
- South Africa
- Prior art keywords
- speech
- signal
- scaling factor
- input signal
- periods
- Prior art date
Links
- 238000000034 method Methods 0.000 claims abstract description 41
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 206010019133 Hangover Diseases 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 18
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- 230000015572 biosynthetic process Effects 0.000 claims description 13
- 238000013139 quantization Methods 0.000 claims description 10
- 230000003595 spectral effect Effects 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 5
- 230000002194 synthesizing effect Effects 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims 2
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- 238000012805 post-processing Methods 0.000 description 23
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- 230000005284 excitation Effects 0.000 description 15
- 238000005070 sampling Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 8
- 230000001052 transient effect Effects 0.000 description 5
- 238000007781 pre-processing Methods 0.000 description 4
- 230000001755 vocal effect Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 3
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- 239000000284 extract Substances 0.000 description 2
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Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
- G10L19/012—Comfort noise or silence coding
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal 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
- G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
- G10L21/0364—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/78—Detection of presence or absence of voice signals
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/691,440 US6615169B1 (en) | 2000-10-18 | 2000-10-18 | High frequency enhancement layer coding in wideband speech codec |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA200302468B true ZA200302468B (en) | 2004-03-29 |
Family
ID=24776540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA200302468A ZA200302468B (en) | 2000-10-18 | 2003-03-28 | Apparatus for bandwidth expansion of a speech signal. |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US6615169B1 (zh) |
| EP (1) | EP1328928B1 (zh) |
| JP (1) | JP2004512562A (zh) |
| KR (1) | KR100547235B1 (zh) |
| CN (1) | CN1244907C (zh) |
| AT (1) | ATE330311T1 (zh) |
| AU (1) | AU2001294125A1 (zh) |
| BR (1) | BR0114669A (zh) |
| CA (1) | CA2425926C (zh) |
| DE (1) | DE60120734T2 (zh) |
| ES (1) | ES2265442T3 (zh) |
| PT (1) | PT1328928E (zh) |
| WO (1) | WO2002033697A2 (zh) |
| ZA (1) | ZA200302468B (zh) |
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| US7113522B2 (en) * | 2001-01-24 | 2006-09-26 | Qualcomm, Incorporated | Enhanced conversion of wideband signals to narrowband signals |
| US7522586B2 (en) * | 2002-05-22 | 2009-04-21 | Broadcom Corporation | Method and system for tunneling wideband telephony through the PSTN |
| GB2389217A (en) * | 2002-05-27 | 2003-12-03 | Canon Kk | Speech recognition system |
| ATE428167T1 (de) * | 2002-07-19 | 2009-04-15 | Nec Corp | Audiodekodierungseinrichtung, dekodierungsverfahren und programm |
| DE10252070B4 (de) * | 2002-11-08 | 2010-07-15 | Palm, Inc. (n.d.Ges. d. Staates Delaware), Sunnyvale | Kommunikationsendgerät mit parametrierter Bandbreitenerweiterung und Verfahren zur Bandbreitenerweiterung dafür |
| US7406096B2 (en) * | 2002-12-06 | 2008-07-29 | Qualcomm Incorporated | Tandem-free intersystem voice communication |
| FR2867649A1 (fr) * | 2003-12-10 | 2005-09-16 | France Telecom | Procede de codage multiple optimise |
| KR100587953B1 (ko) | 2003-12-26 | 2006-06-08 | 한국전자통신연구원 | 대역-분할 광대역 음성 코덱에서의 고대역 오류 은닉 장치 및 그를 이용한 비트스트림 복호화 시스템 |
| FI118834B (fi) * | 2004-02-23 | 2008-03-31 | Nokia Corp | Audiosignaalien luokittelu |
| JP4529492B2 (ja) * | 2004-03-11 | 2010-08-25 | 株式会社デンソー | 音声抽出方法、音声抽出装置、音声認識装置、及び、プログラム |
| FI119533B (fi) * | 2004-04-15 | 2008-12-15 | Nokia Corp | Audiosignaalien koodaus |
| EP1742202B1 (en) * | 2004-05-19 | 2008-05-07 | Matsushita Electric Industrial Co., Ltd. | Encoding device, decoding device, and method thereof |
| US7921007B2 (en) * | 2004-08-17 | 2011-04-05 | Koninklijke Philips Electronics N.V. | Scalable audio coding |
| JP4771674B2 (ja) * | 2004-09-02 | 2011-09-14 | パナソニック株式会社 | 音声符号化装置、音声復号化装置及びこれらの方法 |
| JP4859670B2 (ja) * | 2004-10-27 | 2012-01-25 | パナソニック株式会社 | 音声符号化装置および音声符号化方法 |
| US7386445B2 (en) * | 2005-01-18 | 2008-06-10 | Nokia Corporation | Compensation of transient effects in transform coding |
| ES2351935T3 (es) * | 2005-04-01 | 2011-02-14 | Qualcomm Incorporated | Procedimiento y aparato para la cuantificación vectorial de una representación de envolvente espectral. |
| US8086451B2 (en) * | 2005-04-20 | 2011-12-27 | Qnx Software Systems Co. | System for improving speech intelligibility through high frequency compression |
| US7813931B2 (en) * | 2005-04-20 | 2010-10-12 | QNX Software Systems, Co. | System for improving speech quality and intelligibility with bandwidth compression/expansion |
| US8249861B2 (en) * | 2005-04-20 | 2012-08-21 | Qnx Software Systems Limited | High frequency compression integration |
| US8311840B2 (en) * | 2005-06-28 | 2012-11-13 | Qnx Software Systems Limited | Frequency extension of harmonic signals |
| WO2007043643A1 (ja) * | 2005-10-14 | 2007-04-19 | Matsushita Electric Industrial Co., Ltd. | 音声符号化装置、音声復号装置、音声符号化方法、及び音声復号化方法 |
| US7546237B2 (en) * | 2005-12-23 | 2009-06-09 | Qnx Software Systems (Wavemakers), Inc. | Bandwidth extension of narrowband speech |
| EP2063418A4 (en) * | 2006-09-15 | 2010-12-15 | Panasonic Corp | AUDIO CODING DEVICE AND AUDIO CODING METHOD |
| US20100017197A1 (en) * | 2006-11-02 | 2010-01-21 | Panasonic Corporation | Voice coding device, voice decoding device and their methods |
| WO2008066071A1 (en) * | 2006-11-29 | 2008-06-05 | Panasonic Corporation | Decoding apparatus and audio decoding method |
| CN101246688B (zh) * | 2007-02-14 | 2011-01-12 | 华为技术有限公司 | 一种对背景噪声信号进行编解码的方法、系统和装置 |
| US7912729B2 (en) * | 2007-02-23 | 2011-03-22 | Qnx Software Systems Co. | High-frequency bandwidth extension in the time domain |
| US8195454B2 (en) | 2007-02-26 | 2012-06-05 | Dolby Laboratories Licensing Corporation | Speech enhancement in entertainment audio |
| US20080208575A1 (en) * | 2007-02-27 | 2008-08-28 | Nokia Corporation | Split-band encoding and decoding of an audio signal |
| CN101790756B (zh) | 2007-08-27 | 2012-09-05 | 爱立信电话股份有限公司 | 瞬态检测器以及用于支持音频信号的编码的方法 |
| CN101483495B (zh) | 2008-03-20 | 2012-02-15 | 华为技术有限公司 | 一种背景噪声生成方法以及噪声处理装置 |
| JP5010743B2 (ja) * | 2008-07-11 | 2012-08-29 | フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン | スペクトル傾斜で制御されたフレーミングを使用して帯域拡張データを計算するための装置及び方法 |
| CN101751926B (zh) * | 2008-12-10 | 2012-07-04 | 华为技术有限公司 | 信号编码、解码方法及装置、编解码系统 |
| US9838784B2 (en) | 2009-12-02 | 2017-12-05 | Knowles Electronics, Llc | Directional audio capture |
| US8798290B1 (en) * | 2010-04-21 | 2014-08-05 | Audience, Inc. | Systems and methods for adaptive signal equalization |
| ES2683648T3 (es) * | 2010-07-02 | 2018-09-27 | Dolby International Ab | Descodificación de audio con pos-filtración selectiva |
| JP5552988B2 (ja) * | 2010-09-27 | 2014-07-16 | 富士通株式会社 | 音声帯域拡張装置および音声帯域拡張方法 |
| WO2012121637A1 (en) | 2011-03-04 | 2012-09-13 | Telefonaktiebolaget L M Ericsson (Publ) | Post-quantization gain correction in audio coding |
| JP5596618B2 (ja) * | 2011-05-17 | 2014-09-24 | 日本電信電話株式会社 | 擬似広帯域音声信号生成装置、擬似広帯域音声信号生成方法、及びそのプログラム |
| CN102800317B (zh) * | 2011-05-25 | 2014-09-17 | 华为技术有限公司 | 信号分类方法及设备、编解码方法及设备 |
| CN103187065B (zh) | 2011-12-30 | 2015-12-16 | 华为技术有限公司 | 音频数据的处理方法、装置和系统 |
| US9460729B2 (en) | 2012-09-21 | 2016-10-04 | Dolby Laboratories Licensing Corporation | Layered approach to spatial audio coding |
| RU2633107C2 (ru) | 2012-12-21 | 2017-10-11 | Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. | Добавление комфортного шума для моделирования фонового шума при низких скоростях передачи данных |
| EP2936487B1 (en) * | 2012-12-21 | 2016-06-22 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Generation of a comfort noise with high spectro-temporal resolution in discontinuous transmission of audio signals |
| CN103928029B (zh) * | 2013-01-11 | 2017-02-08 | 华为技术有限公司 | 音频信号编码和解码方法、音频信号编码和解码装置 |
| US9336789B2 (en) * | 2013-02-21 | 2016-05-10 | Qualcomm Incorporated | Systems and methods for determining an interpolation factor set for synthesizing a speech signal |
| WO2014173446A1 (en) * | 2013-04-25 | 2014-10-30 | Nokia Solutions And Networks Oy | Speech transcoding in packet networks |
| US9570093B2 (en) | 2013-09-09 | 2017-02-14 | Huawei Technologies Co., Ltd. | Unvoiced/voiced decision for speech processing |
| AU2014336357B2 (en) * | 2013-10-18 | 2017-04-13 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Concept for encoding an audio signal and decoding an audio signal using deterministic and noise like information |
| EP3058568B1 (en) * | 2013-10-18 | 2021-01-13 | Fraunhofer Gesellschaft zur Förderung der angewandten Forschung E.V. | Concept for encoding an audio signal and decoding an audio signal using speech related spectral shaping information |
| EP2980790A1 (en) * | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for comfort noise generation mode selection |
| CN107210824A (zh) | 2015-01-30 | 2017-09-26 | 美商楼氏电子有限公司 | 麦克风的环境切换 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6011360B2 (ja) * | 1981-12-15 | 1985-03-25 | ケイディディ株式会社 | 音声符号化方式 |
| JP2779886B2 (ja) * | 1992-10-05 | 1998-07-23 | 日本電信電話株式会社 | 広帯域音声信号復元方法 |
| EP0732687B2 (en) * | 1995-03-13 | 2005-10-12 | Matsushita Electric Industrial Co., Ltd. | Apparatus for expanding speech bandwidth |
| CA2185745C (en) * | 1995-09-19 | 2001-02-13 | Juin-Hwey Chen | Synthesis of speech signals in the absence of coded parameters |
| KR20000047944A (ko) | 1998-12-11 | 2000-07-25 | 이데이 노부유끼 | 수신장치 및 방법과 통신장치 및 방법 |
-
2000
- 2000-10-18 US US09/691,440 patent/US6615169B1/en not_active Expired - Lifetime
-
2001
- 2001-10-17 DE DE60120734T patent/DE60120734T2/de not_active Expired - Lifetime
- 2001-10-17 JP JP2002537004A patent/JP2004512562A/ja active Pending
- 2001-10-17 EP EP01974612A patent/EP1328928B1/en not_active Expired - Lifetime
- 2001-10-17 CN CNB018175996A patent/CN1244907C/zh not_active Expired - Lifetime
- 2001-10-17 WO PCT/IB2001/001947 patent/WO2002033697A2/en active IP Right Grant
- 2001-10-17 CA CA002425926A patent/CA2425926C/en not_active Expired - Lifetime
- 2001-10-17 PT PT01974612T patent/PT1328928E/pt unknown
- 2001-10-17 BR BR0114669-6A patent/BR0114669A/pt active IP Right Grant
- 2001-10-17 ES ES01974612T patent/ES2265442T3/es not_active Expired - Lifetime
- 2001-10-17 KR KR1020037005299A patent/KR100547235B1/ko active IP Right Grant
- 2001-10-17 AU AU2001294125A patent/AU2001294125A1/en not_active Abandoned
- 2001-10-17 AT AT01974612T patent/ATE330311T1/de not_active IP Right Cessation
-
2003
- 2003-03-28 ZA ZA200302468A patent/ZA200302468B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ES2265442T3 (es) | 2007-02-16 |
| PT1328928E (pt) | 2006-09-29 |
| WO2002033697A2 (en) | 2002-04-25 |
| DE60120734T2 (de) | 2007-06-14 |
| EP1328928B1 (en) | 2006-06-14 |
| CA2425926A1 (en) | 2002-04-25 |
| CA2425926C (en) | 2009-01-27 |
| JP2004512562A (ja) | 2004-04-22 |
| EP1328928A2 (en) | 2003-07-23 |
| ATE330311T1 (de) | 2006-07-15 |
| KR100547235B1 (ko) | 2006-01-26 |
| CN1244907C (zh) | 2006-03-08 |
| DE60120734D1 (de) | 2006-07-27 |
| AU2001294125A1 (en) | 2002-04-29 |
| WO2002033697A3 (en) | 2002-07-11 |
| BR0114669A (pt) | 2004-02-17 |
| KR20030046510A (ko) | 2003-06-12 |
| US6615169B1 (en) | 2003-09-02 |
| CN1470052A (zh) | 2004-01-21 |
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