JPWO2021260825A1 - - Google Patents
Info
- Publication number
- JPWO2021260825A1 JPWO2021260825A1 JP2022531301A JP2022531301A JPWO2021260825A1 JP WO2021260825 A1 JPWO2021260825 A1 JP WO2021260825A1 JP 2022531301 A JP2022531301 A JP 2022531301A JP 2022531301 A JP2022531301 A JP 2022531301A JP WO2021260825 A1 JPWO2021260825 A1 JP WO2021260825A1
- Authority
- JP
- Japan
- 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
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
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
-
- 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
- G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
- H04M3/568—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities audio processing specific to telephonic conferencing, e.g. spatial distribution, mixing of participants
-
- 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
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
- G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Mathematical Physics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Stereophonic System (AREA)
- Telephonic Communication Services (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2020/024774 WO2021260825A1 (ja) | 2020-06-24 | 2020-06-24 | 音信号符号化方法、音信号符号化装置、プログラム及び記録媒体 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPWO2021260825A1 true JPWO2021260825A1 (https=) | 2021-12-30 |
| JPWO2021260825A5 JPWO2021260825A5 (https=) | 2023-02-02 |
| JP7491376B2 JP7491376B2 (ja) | 2024-05-28 |
Family
ID=79282593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2022531301A Active JP7491376B2 (ja) | 2020-06-24 | 2020-06-24 | 音信号符号化方法、音信号符号化装置、プログラム及び記録媒体 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12482473B2 (https=) |
| EP (1) | EP4175270B1 (https=) |
| JP (1) | JP7491376B2 (https=) |
| CN (1) | CN115917644B (https=) |
| WO (1) | WO2021260825A1 (https=) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022176270A1 (ja) * | 2021-02-16 | 2022-08-25 | 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 | 符号化装置、復号装置、符号化方法、及び、復号方法 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019512737A (ja) * | 2016-03-18 | 2019-05-16 | クゥアルコム・インコーポレイテッドＱｕａｌｃｏｍｍ Ｉｎｃｏｒｐｏｒａｔｅｄ | マルチチャンネルコーディング |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10236694A1 (de) * | 2002-08-09 | 2004-02-26 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und Verfahren zum skalierbaren Codieren und Vorrichtung und Verfahren zum skalierbaren Decodieren |
| SE0402650D0 (sv) * | 2004-11-02 | 2004-11-02 | Coding Tech Ab | Improved parametric stereo compatible coding of spatial audio |
| US20070121953A1 (en) * | 2005-11-28 | 2007-05-31 | Mediatek Inc. | Audio decoding system and method |
| WO2010017833A1 (en) * | 2008-08-11 | 2010-02-18 | Nokia Corporation | Multichannel audio coder and decoder |
| CA2757972C (en) * | 2008-10-01 | 2018-03-13 | Gvbb Holdings S.A.R.L. | Decoding apparatus, decoding method, encoding apparatus, encoding method, and editing apparatus |
| US8332229B2 (en) * | 2008-12-30 | 2012-12-11 | Stmicroelectronics Asia Pacific Pte. Ltd. | Low complexity MPEG encoding for surround sound recordings |
| US8848925B2 (en) * | 2009-09-11 | 2014-09-30 | Nokia Corporation | Method, apparatus and computer program product for audio coding |
| CN103180899B (zh) * | 2010-11-17 | 2015-07-22 | 松下电器（美国）知识产权公司 | 立体声信号的编码装置、解码装置、编码方法及解码方法 |
| EP3067886A1 (en) * | 2015-03-09 | 2016-09-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoder for encoding a multichannel signal and audio decoder for decoding an encoded audio signal |
| RU2704733C1 (ru) * | 2016-01-22 | 2019-10-30 | Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. | Устройство и способ кодирования или декодирования многоканального сигнала с использованием параметра широкополосного выравнивания и множества параметров узкополосного выравнивания |
| EP3208800A1 (en) * | 2016-02-17 | 2017-08-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for stereo filing in multichannel coding |
| FR3048808A1 (fr) * | 2016-03-10 | 2017-09-15 | Orange | Codage et decodage optimise d'informations de spatialisation pour le codage et le decodage parametrique d'un signal audio multicanal |
-
2020
- 2020-06-24 JP JP2022531301A patent/JP7491376B2/ja active Active
- 2020-06-24 US US18/011,132 patent/US12482473B2/en active Active
- 2020-06-24 CN CN202080102309.5A patent/CN115917644B/zh active Active
- 2020-06-24 WO PCT/JP2020/024774 patent/WO2021260825A1/ja not_active Ceased
- 2020-06-24 EP EP20942073.6A patent/EP4175270B1/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019512737A (ja) * | 2016-03-18 | 2019-05-16 | クゥアルコム・インコーポレイテッドＱｕａｌｃｏｍｍ Ｉｎｃｏｒｐｏｒａｔｅｄ | マルチチャンネルコーディング |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021260825A1 (ja) | 2021-12-30 |
| CN115917644B (zh) | 2025-07-11 |
| JP7491376B2 (ja) | 2024-05-28 |
| CN115917644A (zh) | 2023-04-04 |
| EP4175270A4 (en) | 2024-03-13 |
| EP4175270B1 (en) | 2025-03-12 |
| EP4175270A1 (en) | 2023-05-03 |
| US20230178086A1 (en) | 2023-06-08 |
| US12482473B2 (en) | 2025-11-25 |
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