EP3583786A4 - Apparatus and method for downmixing multichannel audio signals - Google Patents
Apparatus and method for downmixing multichannel audio signals 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- Withdrawn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)
- Multimedia (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (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 (en) | 2019-12-25 |
EP3583786A4 true EP3583786A4 (en) | 2020-12-23 |
Family
ID=63169877
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18754857.3A Withdrawn EP3583786A4 (en) | 2017-02-17 | 2018-02-16 | Apparatus and method for downmixing multichannel audio signals |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP3583786A4 (en) |
JP (1) | JP2020508590A (en) |
KR (1) | KR20190109726A (en) |
CN (1) | CN109644315A (en) |
TW (1) | TW201843675A (en) |
WO (1) | WO2018151858A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3091636B1 (en) * | 2019-01-04 | 2020-12-11 | Parrot Faurecia Automotive Sas | Multichannel audio signal processing method |
US11432069B2 (en) | 2019-10-10 | 2022-08-30 | Boomcloud 360, Inc. | Spectrally orthogonal audio component processing |
US10841728B1 (en) * | 2019-10-10 | 2020-11-17 | Boomcloud 360, Inc. | Multi-channel crosstalk processing |
CN110853658B (en) * | 2019-11-26 | 2021-12-07 | 中国电影科学技术研究所 | Method and apparatus for downmixing audio signal, computer device, and readable storage medium |
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 |
---|---|---|---|---|
EP1275270A1 (en) * | 2000-04-10 | 2003-01-15 | Harman International Industries Incorporated | Creating virtual surround using dipole and monopole pressure fields |
CN1233200C (en) * | 2003-03-04 | 2005-12-21 | Tcl王牌电子(深圳)有限公司 | FPGA 5.1 channel virtual speech reproducing method and device |
KR100644617B1 (en) * | 2004-06-16 | 2006-11-10 | 삼성전자주식회사 | Apparatus and method for reproducing 7.1 channel audio |
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 |
CN101253555B (en) * | 2005-09-01 | 2011-08-24 | 松下电器产业株式会社 | Multi-channel acoustic signal processing device and method |
US8346380B2 (en) * | 2008-09-25 | 2013-01-01 | Lg Electronics Inc. | Method and an apparatus for processing a signal |
WO2011044064A1 (en) * | 2009-10-05 | 2011-04-14 | Harman International Industries, Incorporated | System for spatial extraction of audio signals |
TWI479905B (en) * | 2012-01-12 | 2015-04-01 | Univ Nat Central | Multi-channel down mixing device |
KR20170136004A (en) * | 2013-12-13 | 2017-12-08 | 앰비디오 인코포레이티드 | Apparatus and method for sound stage enhancement |
-
2018
- 2018-02-16 CN CN201880003285.0A patent/CN109644315A/en active Pending
- 2018-02-16 EP EP18754857.3A patent/EP3583786A4/en not_active Withdrawn
- 2018-02-16 WO PCT/US2018/000075 patent/WO2018151858A1/en unknown
- 2018-02-16 JP JP2019503460A patent/JP2020508590A/en active Pending
- 2018-02-16 KR KR1020197007657A patent/KR20190109726A/en unknown
- 2018-02-21 TW TW107105810A patent/TW201843675A/en 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 |
---|---|
WO2018151858A1 (en) | 2018-08-23 |
EP3583786A1 (en) | 2019-12-25 |
KR20190109726A (en) | 2019-09-26 |
JP2020508590A (en) | 2020-03-19 |
TW201843675A (en) | 2018-12-16 |
CN109644315A (en) | 2019-04-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3677078A4 (en) | Method and apparatus for configuration of reference signal | |
EP3662584A4 (en) | Method and apparatus for reference signal configuration | |
EP3373300A4 (en) | Method and apparatus for processing voice signal | |
EP3255882A4 (en) | Apparatus and method for transreceiving broadcast signals | |
EP3255854A4 (en) | Apparatus and method for transreceiving broadcast signals | |
EP3526979A4 (en) | Method and apparatus for output signal equalization between microphones | |
EP3562081A4 (en) | Method and apparatus for configuring reference signal | |
EP3750325A4 (en) | Method and apparatus for processing audio signal | |
EP3175445B8 (en) | Apparatus and method for enhancing an audio signal, sound enhancing system | |
EP3327677B8 (en) | An apparatus for spatial audio and associated method | |
EP3399772A4 (en) | Audio signal frequency response compensation method and apparatus | |
EP3602553B8 (en) | Apparatus and method for processing an audio signal | |
EP3893523A4 (en) | Audio signal processing method and apparatus | |
EP4027716A4 (en) | Determination method and apparatus for reference signal configuration | |
EP3520105A4 (en) | Method of editing audio signals using separated objects and associated apparatus | |
EP3554030A4 (en) | Method and apparatus for receiving td-altboc signal | |
EP3451695A4 (en) | Method and apparatus for collecting sound signal | |
EP3531736A4 (en) | Method and apparatus for transmitting reference signals | |
EP3644312A4 (en) | Method and device for recovering audio signal | |
EP3252976A4 (en) | Apparatus and method for transreceiving broadcast signals | |
EP3487203A4 (en) | Transmission method and apparatus for sounding reference signal | |
EP3583786A4 (en) | Apparatus and method for downmixing multichannel audio signals | |
EP3511934A4 (en) | Method, apparatus and system for processing multi-channel audio signal | |
EP3849209A4 (en) | Audio signal processing method and apparatus | |
EP3630546A4 (en) | Systems for generating audio signals and associated methods |
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 |
|
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 |
|
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 |