CA3014784C - Multi channel coding - Google Patents
Multi channel coding Download PDFInfo
- Publication number
- CA3014784C CA3014784C CA3014784A CA3014784A CA3014784C CA 3014784 C CA3014784 C CA 3014784C CA 3014784 A CA3014784 A CA 3014784A CA 3014784 A CA3014784 A CA 3014784A CA 3014784 C CA3014784 C CA 3014784C
- Authority
- CA
- Canada
- Prior art keywords
- windows
- window
- signal
- length
- stereo
- 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.)
- Active
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
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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
- G10L19/02—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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
- H04S2400/01—Multi-channel, i.e. more than two input channels, sound reproduction with two speakers wherein the multi-channel information is substantially preserved
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
- H04S2400/03—Aspects of down-mixing multi-channel audio to configurations with lower numbers of playback channels, e.g. 7.1 -> 5.1
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
- H04S2400/05—Generation or adaptation of centre channel in multi-channel audio systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computational Linguistics (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Health & Medical Sciences (AREA)
- Mathematical Physics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Stereophonic System (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Stereo-Broadcasting Methods (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201662310635P | 2016-03-18 | 2016-03-18 | |
| US62/310,635 | 2016-03-18 | ||
| US15/461,312 US9959877B2 (en) | 2016-03-18 | 2017-03-16 | Multi channel coding |
| US15/461,312 | 2017-03-16 | ||
| PCT/US2017/023035 WO2017161315A1 (en) | 2016-03-18 | 2017-03-17 | Multi channel coding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA3014784A1 CA3014784A1 (en) | 2017-09-21 |
| CA3014784C true CA3014784C (en) | 2023-04-25 |
Family
ID=58489063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3014784A Active CA3014784C (en) | 2016-03-18 | 2017-03-17 | Multi channel coding |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US9959877B2 (https=) |
| EP (1) | EP3430623B1 (https=) |
| JP (1) | JP6768824B2 (https=) |
| KR (1) | KR102168054B1 (https=) |
| CN (1) | CN108780651B (https=) |
| BR (1) | BR112018068491A2 (https=) |
| CA (1) | CA3014784C (https=) |
| ES (1) | ES2783975T3 (https=) |
| TW (1) | TWI640980B (https=) |
| WO (1) | WO2017161315A1 (https=) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112352277B (zh) * | 2018-07-03 | 2024-05-31 | 松下电器（美国）知识产权公司 | 编码装置及编码方法 |
| WO2020094263A1 (en) * | 2018-11-05 | 2020-05-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and audio signal processor, for providing a processed audio signal representation, audio decoder, audio encoder, methods and computer programs |
| CA3193359A1 (en) * | 2019-06-14 | 2020-12-17 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Parameter encoding and decoding |
| US12205598B2 (en) * | 2020-02-03 | 2025-01-21 | Voiceage Corporation | Switching between stereo coding modes in a multichannel sound codec |
| CN115917644B (zh) * | 2020-06-24 | 2025-07-11 | 日本电信电话株式会社 | 声音信号编码方法、声音信号编码装置、计算机程序产品以及记录介质 |
| WO2021260826A1 (ja) * | 2020-06-24 | 2021-12-30 | 日本電信電話株式会社 | 音信号復号方法、音信号復号装置、プログラム及び記録媒体 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7072726B2 (en) * | 2002-06-19 | 2006-07-04 | Microsoft Corporation | Converting M channels of digital audio data into N channels of digital audio data |
| US7325023B2 (en) * | 2003-09-29 | 2008-01-29 | Sony Corporation | Method of making a window type decision based on MDCT data in audio encoding |
| US20050137729A1 (en) | 2003-12-18 | 2005-06-23 | Atsuhiro Sakurai | Time-scale modification stereo audio signals |
| US20050276430A1 (en) * | 2004-05-28 | 2005-12-15 | Microsoft Corporation | Fast headphone virtualization |
| JP5555707B2 (ja) * | 2008-10-08 | 2014-07-23 | 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 | マルチ分解能切替型のオーディオ符号化及び復号化スキーム |
| ES2639716T3 (es) | 2009-01-28 | 2017-10-30 | Dolby International Ab | Transposición armónica mejorada |
| CA2992917C (en) * | 2010-04-09 | 2020-05-26 | Dolby International Ab | Mdct-based complex prediction stereo coding |
| EP2619758B1 (en) | 2010-10-15 | 2015-08-19 | Huawei Technologies Co., Ltd. | Audio signal transformer and inverse transformer, methods for audio signal analysis and synthesis |
| EP2980791A1 (en) | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Processor, method and computer program for processing an audio signal using truncated analysis or synthesis window overlap portions |
-
2017
- 2017-03-16 US US15/461,312 patent/US9959877B2/en active Active
- 2017-03-17 WO PCT/US2017/023035 patent/WO2017161315A1/en not_active Ceased
- 2017-03-17 ES ES17715567T patent/ES2783975T3/es active Active
- 2017-03-17 CN CN201780015738.7A patent/CN108780651B/zh active Active
- 2017-03-17 TW TW106109041A patent/TWI640980B/zh active
- 2017-03-17 KR KR1020187026599A patent/KR102168054B1/ko active Active
- 2017-03-17 CA CA3014784A patent/CA3014784C/en active Active
- 2017-03-17 JP JP2018548749A patent/JP6768824B2/ja active Active
- 2017-03-17 EP EP17715567.8A patent/EP3430623B1/en active Active
- 2017-03-17 BR BR112018068491-0A patent/BR112018068491A2/pt active Search and Examination
Also Published As
| Publication number | Publication date |
|---|---|
| KR20180125475A (ko) | 2018-11-23 |
| US9959877B2 (en) | 2018-05-01 |
| ES2783975T3 (es) | 2020-09-21 |
| EP3430623A1 (en) | 2019-01-23 |
| KR102168054B1 (ko) | 2020-10-20 |
| CN108780651B (zh) | 2023-05-30 |
| JP2019512737A (ja) | 2019-05-16 |
| WO2017161315A1 (en) | 2017-09-21 |
| TW201737242A (zh) | 2017-10-16 |
| US20170270936A1 (en) | 2017-09-21 |
| TWI640980B (zh) | 2018-11-11 |
| EP3430623B1 (en) | 2020-01-01 |
| CN108780651A (zh) | 2018-11-09 |
| JP6768824B2 (ja) | 2020-10-14 |
| CA3014784A1 (en) | 2017-09-21 |
| BR112018068491A2 (pt) | 2019-01-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20200131 |
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| MPN | Maintenance fee for patent paid |
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| U11 | Full renewal or maintenance fee paid |
Free format text: ST27 STATUS EVENT CODE: A-4-4-U10-U11-U102 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: MAINTENANCE FEE PAYMENT PAID IN FULL Effective date: 20251209 |