WO2009096715A3 - 오디오 신호의 부호화, 복호화 방법 및 장치 - Google Patents
오디오 신호의 부호화, 복호화 방법 및 장치 Download PDFInfo
- Publication number
- WO2009096715A3 WO2009096715A3 PCT/KR2009/000433 KR2009000433W WO2009096715A3 WO 2009096715 A3 WO2009096715 A3 WO 2009096715A3 KR 2009000433 W KR2009000433 W KR 2009000433W WO 2009096715 A3 WO2009096715 A3 WO 2009096715A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coding
- audio signal
- sinusoidal
- decoding
- signals
- Prior art date
Links
- 230000005236 sound signal Effects 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 3
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
- 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 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
- G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/0204—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 spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
-
- 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
-
- 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
- G10L19/093—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters using sinusoidal excitation models
Landscapes
- 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)
Abstract
입력 오디오 신호에서 정현파 성분을 제외한 나머지 성분의 신호를 효율적으로 부호화하거나 복호화하는 방법 및 장치가 개시된다. 본 발명에 따른 오디오 신호의 부호화 방법 및 장치는 소정 임계 주파수 이하의 저주파수 신호에 대한 정현파 분석을 수행하여 정현파 신호들을 추출한 다음 입력 오디오 신호에서 정현파 신호를 제외한 나머지 차신호에 대하여 선형 예측 코딩 분석을 이용한 부호화를 수행하는 것을 특징으로 한다.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2008-0009007 | 2008-01-29 | ||
KR1020080009007A KR101413967B1 (ko) | 2008-01-29 | 2008-01-29 | 오디오 신호의 부호화 방법 및 복호화 방법, 및 그에 대한 기록 매체, 오디오 신호의 부호화 장치 및 복호화 장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2009096715A2 WO2009096715A2 (ko) | 2009-08-06 |
WO2009096715A3 true WO2009096715A3 (ko) | 2009-09-24 |
Family
ID=40900106
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2009/000433 WO2009096715A2 (ko) | 2008-01-29 | 2009-01-29 | 오디오 신호의 부호화, 복호화 방법 및 장치 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20090192789A1 (ko) |
KR (1) | KR101413967B1 (ko) |
WO (1) | WO2009096715A2 (ko) |
Families Citing this family (13)
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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 |
KR20110018107A (ko) * | 2009-08-17 | 2011-02-23 | 삼성전자주식회사 | 레지듀얼 신호 인코딩 및 디코딩 방법 및 장치 |
EP2481048B1 (en) * | 2009-09-25 | 2017-10-25 | Nokia Technologies Oy | Audio coding |
PL3093843T3 (pl) | 2009-09-29 | 2021-06-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Dekoder sygnału audio MPEG-SAOC, koder sygnału audio MPEG-SAOC, sposób dostarczania reprezentacji sygnału upmixu z wykorzystaniem dekodowania MPEG-SAOC, sposób dostarczania reprezentacji sygnału downmixu z wykorzystaniem dekodowania MPEG-SAOC oraz program komputerowy wykorzystujący wspólną wartość parametru korelacji międzyobiektowej zależną od czasu/częstotliwości |
PL3998606T3 (pl) * | 2009-10-21 | 2023-03-06 | Dolby International Ab | Nadrpóbkowanie w połączonym banku filtrów modułu transpozycji |
JP5648123B2 (ja) | 2011-04-20 | 2015-01-07 | パナソニック インテレクチュアル プロパティ コーポレーション オブアメリカPanasonic Intellectual Property Corporation of America | 音声音響符号化装置、音声音響復号装置、およびこれらの方法 |
US8941955B2 (en) * | 2011-06-29 | 2015-01-27 | Hamilton Sundstrand Corporation | Overvoltage prevention in an aircraft electrical power generation system |
CN103581603B (zh) * | 2012-07-24 | 2017-06-27 | 联想(北京)有限公司 | 一种多媒体数据的传输方法及电子设备 |
EP2989559A2 (en) | 2013-04-22 | 2016-03-02 | Bacula Systems SA | Creating a universally deduplicatable archive volume |
CN107818789B (zh) * | 2013-07-16 | 2020-11-17 | 华为技术有限公司 | 解码方法和解码装置 |
EP2830065A1 (en) | 2013-07-22 | 2015-01-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for decoding an encoded audio signal using a cross-over filter around a transition frequency |
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 |
US9697843B2 (en) * | 2014-04-30 | 2017-07-04 | Qualcomm Incorporated | High band excitation signal generation |
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2008
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-
2009
- 2009-01-29 US US12/362,060 patent/US20090192789A1/en not_active Abandoned
- 2009-01-29 WO PCT/KR2009/000433 patent/WO2009096715A2/ko active Application Filing
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Also Published As
Publication number | Publication date |
---|---|
US20090192789A1 (en) | 2009-07-30 |
KR101413967B1 (ko) | 2014-07-01 |
KR20090083068A (ko) | 2009-08-03 |
WO2009096715A2 (ko) | 2009-08-06 |
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