EP3583786A4 - Vorrichtung und verfahren zur abwärtsmischung von mehrkanal-audiosignalen - Google Patents
Vorrichtung und verfahren zur abwärtsmischung von mehrkanal-audiosignalen Download PDFInfo
- Publication number
- EP3583786A4 EP3583786A4 EP18754857.3A EP18754857A EP3583786A4 EP 3583786 A4 EP3583786 A4 EP 3583786A4 EP 18754857 A EP18754857 A EP 18754857A EP 3583786 A4 EP3583786 A4 EP 3583786A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- audio signals
- multichannel audio
- downmixing
- downmixing multichannel
- signals
- 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.)
- Withdrawn
Links
- 230000005236 sound signal Effects 0.000 title 1
Classifications
-
- 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
-
- 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
-
- 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
- H04S2400/07—Generation or adaptation of the Low Frequency Effect [LFE] channel, e.g. distribution or signal processing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
- H04S2420/01—Enhancing the perception of the sound image or of the spatial distribution using head related transfer functions [HRTF's] or equivalents thereof, e.g. interaural time difference [ITD] or interaural level difference [ILD]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
- H04S2420/03—Application of parametric coding in stereophonic audio systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Mathematical Physics (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Stereophonic System (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201762460584P | 2017-02-17 | 2017-02-17 | |
PCT/US2018/000075 WO2018151858A1 (en) | 2017-02-17 | 2018-02-16 | Apparatus and method for downmixing multichannel audio signals |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3583786A1 EP3583786A1 (de) | 2019-12-25 |
EP3583786A4 true EP3583786A4 (de) | 2020-12-23 |
Family
ID=63169877
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18754857.3A Withdrawn EP3583786A4 (de) | 2017-02-17 | 2018-02-16 | Vorrichtung und verfahren zur abwärtsmischung von mehrkanal-audiosignalen |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP3583786A4 (de) |
JP (1) | JP2020508590A (de) |
KR (1) | KR20190109726A (de) |
CN (1) | CN109644315A (de) |
TW (1) | TW201843675A (de) |
WO (1) | WO2018151858A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3091636B1 (fr) * | 2019-01-04 | 2020-12-11 | Parrot Faurecia Automotive Sas | Procédé de traitement d’un signal audio multicanal |
US10841728B1 (en) * | 2019-10-10 | 2020-11-17 | Boomcloud 360, Inc. | Multi-channel crosstalk processing |
US11432069B2 (en) * | 2019-10-10 | 2022-08-30 | Boomcloud 360, Inc. | Spectrally orthogonal audio component processing |
CN110853658B (zh) * | 2019-11-26 | 2021-12-07 | 中国电影科学技术研究所 | 音频信号的下混方法、装置、计算机设备及可读存储介质 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110243338A1 (en) * | 2008-12-15 | 2011-10-06 | Dolby Laboratories Licensing Corporation | Surround sound virtualizer and method with dynamic range compression |
US8050434B1 (en) * | 2006-12-21 | 2011-11-01 | Srs Labs, Inc. | Multi-channel audio enhancement system |
US20120170756A1 (en) * | 2011-01-04 | 2012-07-05 | Srs Labs, Inc. | Immersive audio rendering system |
WO2017074321A1 (en) * | 2015-10-27 | 2017-05-04 | Ambidio, Inc. | Apparatus and method for sound stage enhancement |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2000242253A1 (en) * | 2000-04-10 | 2001-10-23 | Harman International Industries Incorporated | Creating virtual surround using dipole and monopole pressure fields |
CN1233200C (zh) * | 2003-03-04 | 2005-12-21 | Tcl王牌电子(深圳)有限公司 | 一种基于fpga的5.1声道虚拟声重放方法以及装置 |
KR100644617B1 (ko) * | 2004-06-16 | 2006-11-10 | 삼성전자주식회사 | 7.1 채널 오디오 재생 방법 및 장치 |
US7853022B2 (en) * | 2004-10-28 | 2010-12-14 | Thompson Jeffrey K | Audio spatial environment engine |
US7751572B2 (en) * | 2005-04-15 | 2010-07-06 | Dolby International Ab | Adaptive residual audio coding |
KR101277041B1 (ko) * | 2005-09-01 | 2013-06-24 | 파나소닉 주식회사 | 멀티 채널 음향 신호 처리 장치 및 방법 |
US8346380B2 (en) * | 2008-09-25 | 2013-01-01 | Lg Electronics Inc. | Method and an apparatus for processing a signal |
CN102687536B (zh) * | 2009-10-05 | 2017-03-08 | 哈曼国际工业有限公司 | 用于音频信号的空间提取的系统 |
TWI479905B (zh) * | 2012-01-12 | 2015-04-01 | Univ Nat Central | Multi-channel down mixing device |
JP6251809B2 (ja) * | 2013-12-13 | 2017-12-20 | アンビディオ,インコーポレイテッド | サウンドステージ拡張用の装置及び方法 |
-
2018
- 2018-02-16 KR KR1020197007657A patent/KR20190109726A/ko unknown
- 2018-02-16 WO PCT/US2018/000075 patent/WO2018151858A1/en unknown
- 2018-02-16 EP EP18754857.3A patent/EP3583786A4/de not_active Withdrawn
- 2018-02-16 CN CN201880003285.0A patent/CN109644315A/zh active Pending
- 2018-02-16 JP JP2019503460A patent/JP2020508590A/ja active Pending
- 2018-02-21 TW TW107105810A patent/TW201843675A/zh unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8050434B1 (en) * | 2006-12-21 | 2011-11-01 | Srs Labs, Inc. | Multi-channel audio enhancement system |
US20110243338A1 (en) * | 2008-12-15 | 2011-10-06 | Dolby Laboratories Licensing Corporation | Surround sound virtualizer and method with dynamic range compression |
US20120170756A1 (en) * | 2011-01-04 | 2012-07-05 | Srs Labs, Inc. | Immersive audio rendering system |
WO2017074321A1 (en) * | 2015-10-27 | 2017-05-04 | Ambidio, Inc. | Apparatus and method for sound stage enhancement |
Non-Patent Citations (1)
Title |
---|
See also references of WO2018151858A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN109644315A (zh) | 2019-04-16 |
KR20190109726A (ko) | 2019-09-26 |
JP2020508590A (ja) | 2020-03-19 |
WO2018151858A1 (en) | 2018-08-23 |
TW201843675A (zh) | 2018-12-16 |
EP3583786A1 (de) | 2019-12-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20190318 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: HSIEH, PEI-LUN Inventor name: WU, TSAI-YI |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
A4 | Supplementary search report drawn up and despatched |
Effective date: 20201125 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: H04S 3/00 20060101AFI20201119BHEP Ipc: G10L 19/008 20130101ALI20201119BHEP |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20210626 |