WO2009096717A3 - 오디오 신호의 부호화, 복호화 방법 및 장치 - Google Patents
오디오 신호의 부호화, 복호화 방법 및 장치 Download PDFInfo
- Publication number
- WO2009096717A3 WO2009096717A3 PCT/KR2009/000435 KR2009000435W WO2009096717A3 WO 2009096717 A3 WO2009096717 A3 WO 2009096717A3 KR 2009000435 W KR2009000435 W KR 2009000435W WO 2009096717 A3 WO2009096717 A3 WO 2009096717A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- encoding
- high frequency
- linear prediction
- prediction coding
- signal
- Prior art date
Links
- 230000005236 sound signal Effects 0.000 title abstract 2
Classifications
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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
- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
- G10L19/083—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being an excitation gain
-
- 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
- G10L15/00—Speech recognition
- G10L15/20—Speech recognition techniques specially adapted for robustness in adverse environments, e.g. in noise, of stress induced speech
-
- 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
- G10L21/0208—Noise filtering
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)
- Quality & Reliability (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
오디오 신호 중 소정 임계 주파수 이상의 고주파수 대역의 신호를 보다 효율적으로 부호화하거나 복호화하는 방법 및 장치가 개시된다. 본 발명에 따른 오디오 신호의 부호화 방법 및 장치는 고주파수 신호에 대한 선형 예측 코딩 분석을 통해 생성된 선형 예측 코딩 계수 및 잔차 신호의 이득 정보를 부호화함으로써 적은 비트를 이용하면서도 향상된 음질을 갖도록 고주파수 신호를 부호화한다.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080009008A KR101413968B1 (ko) | 2008-01-29 | 2008-01-29 | 오디오 신호의 부호화, 복호화 방법 및 장치 |
KR10-2008-0009008 | 2008-01-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2009096717A2 WO2009096717A2 (ko) | 2009-08-06 |
WO2009096717A3 true WO2009096717A3 (ko) | 2009-09-24 |
Family
ID=40900107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2009/000435 WO2009096717A2 (ko) | 2008-01-29 | 2009-01-29 | 오디오 신호의 부호화, 복호화 방법 및 장치 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20090192792A1 (ko) |
KR (1) | KR101413968B1 (ko) |
WO (1) | WO2009096717A2 (ko) |
Families Citing this family (22)
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JP4932917B2 (ja) * | 2009-04-03 | 2012-05-16 | 株式会社エヌ・ティ・ティ・ドコモ | 音声復号装置、音声復号方法、及び音声復号プログラム |
JP5754899B2 (ja) | 2009-10-07 | 2015-07-29 | ソニー株式会社 | 復号装置および方法、並びにプログラム |
WO2011059254A2 (en) * | 2009-11-12 | 2011-05-19 | Lg Electronics Inc. | An apparatus for processing a signal and method thereof |
US9508351B2 (en) | 2009-12-16 | 2016-11-29 | Dobly International AB | SBR bitstream parameter downmix |
JP5850216B2 (ja) | 2010-04-13 | 2016-02-03 | ソニー株式会社 | 信号処理装置および方法、符号化装置および方法、復号装置および方法、並びにプログラム |
JP5609737B2 (ja) | 2010-04-13 | 2014-10-22 | ソニー株式会社 | 信号処理装置および方法、符号化装置および方法、復号装置および方法、並びにプログラム |
EP4016527B1 (en) | 2010-07-19 | 2023-02-22 | Dolby International AB | Processing of audio signals during high frequency reconstruction |
US12002476B2 (en) | 2010-07-19 | 2024-06-04 | Dolby International Ab | Processing of audio signals during high frequency reconstruction |
US8762158B2 (en) * | 2010-08-06 | 2014-06-24 | Samsung Electronics Co., Ltd. | Decoding method and decoding apparatus therefor |
JP5707842B2 (ja) | 2010-10-15 | 2015-04-30 | ソニー株式会社 | 符号化装置および方法、復号装置および方法、並びにプログラム |
JP5704397B2 (ja) * | 2011-03-31 | 2015-04-22 | ソニー株式会社 | 符号化装置および方法、並びにプログラム |
CN105531762B (zh) | 2013-09-19 | 2019-10-01 | 索尼公司 | 编码装置和方法、解码装置和方法以及程序 |
CN104517610B (zh) * | 2013-09-26 | 2018-03-06 | 华为技术有限公司 | 频带扩展的方法及装置 |
US9620134B2 (en) | 2013-10-10 | 2017-04-11 | Qualcomm Incorporated | Gain shape estimation for improved tracking of high-band temporal characteristics |
KR20230042410A (ko) | 2013-12-27 | 2023-03-28 | 소니그룹주식회사 | 복호화 장치 및 방법, 및 프로그램 |
US9697843B2 (en) * | 2014-04-30 | 2017-07-04 | Qualcomm Incorporated | High band excitation signal generation |
CN105225671B (zh) | 2014-06-26 | 2016-10-26 | 华为技术有限公司 | 编解码方法、装置及*** |
US11295753B2 (en) * | 2015-03-03 | 2022-04-05 | Continental Automotive Systems, Inc. | Speech quality under heavy noise conditions in hands-free communication |
TW202341126A (zh) * | 2017-03-23 | 2023-10-16 | 瑞典商都比國際公司 | 用於音訊信號之高頻重建的諧波轉置器的回溯相容整合 |
KR20210003507A (ko) | 2019-07-02 | 2021-01-12 | 한국전자통신연구원 | 오디오 코딩을 위한 잔차 신호 처리 방법 및 오디오 처리 장치 |
KR20230018838A (ko) | 2021-07-30 | 2023-02-07 | 한국전자통신연구원 | 벡터 양자화된 잔여오차 특징을 사용한 오디오 부호화/복호화 장치 및 그 방법 |
CN118053437A (zh) * | 2022-11-17 | 2024-05-17 | 抖音视界有限公司 | 音频编码方法、解码方法、装置、设备及存储介质 |
Citations (1)
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US20070299669A1 (en) * | 2004-08-31 | 2007-12-27 | Matsushita Electric Industrial Co., Ltd. | Audio Encoding Apparatus, Audio Decoding Apparatus, Communication Apparatus and Audio Encoding Method |
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US5781880A (en) * | 1994-11-21 | 1998-07-14 | Rockwell International Corporation | Pitch lag estimation using frequency-domain lowpass filtering of the linear predictive coding (LPC) residual |
JPH10149199A (ja) * | 1996-11-19 | 1998-06-02 | Sony Corp | 音声符号化方法、音声復号化方法、音声符号化装置、音声復号化装置、電話装置、ピッチ変換方法及び媒体 |
JP3681488B2 (ja) * | 1996-11-19 | 2005-08-10 | 三井・デュポンポリケミカル株式会社 | エチレン共重合体組成物及びそれを用いた易開封性シール材料 |
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-
2008
- 2008-01-29 KR KR1020080009008A patent/KR101413968B1/ko active IP Right Grant
-
2009
- 2009-01-29 US US12/361,999 patent/US20090192792A1/en not_active Abandoned
- 2009-01-29 WO PCT/KR2009/000435 patent/WO2009096717A2/ko active Application Filing
Patent Citations (1)
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US20070299669A1 (en) * | 2004-08-31 | 2007-12-27 | Matsushita Electric Industrial Co., Ltd. | Audio Encoding Apparatus, Audio Decoding Apparatus, Communication Apparatus and Audio Encoding Method |
Non-Patent Citations (1)
Title |
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FEK M. ET AL.: "Joint speech and audio coding combining sinusoidal modeling and wavelet packets", EUROSPEECH 2001, SCANDINAVIA, 2001, SCANDINAVIA, XP007004852 * |
Also Published As
Publication number | Publication date |
---|---|
WO2009096717A2 (ko) | 2009-08-06 |
KR101413968B1 (ko) | 2014-07-01 |
KR20090083069A (ko) | 2009-08-03 |
US20090192792A1 (en) | 2009-07-30 |
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