CA2950014C - Obtention d'informations de symetrie pour des moteurs de rendu audio ambiophonique d'ordre superieur - Google Patents
Obtention d'informations de symetrie pour des moteurs de rendu audio ambiophonique d'ordre superieur Download PDFInfo
- Publication number
- CA2950014C CA2950014C CA2950014A CA2950014A CA2950014C CA 2950014 C CA2950014 C CA 2950014C CA 2950014 A CA2950014 A CA 2950014A CA 2950014 A CA2950014 A CA 2950014A CA 2950014 C CA2950014 C CA 2950014C
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
- H04S7/30—Control circuits for electronic adaptation of the sound field
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
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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
- G10L19/04—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
- G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
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- 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
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- 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
- H04S2420/11—Application of ambisonics in stereophonic audio systems
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
- H04S7/30—Control circuits for electronic adaptation of the sound field
- H04S7/301—Automatic calibration of stereophonic sound system, e.g. with test microphone
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- Multimedia (AREA)
- Algebra (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Stereophonic System (AREA)
Abstract
L'invention concerne, en général, des techniques permettant d'obtenir des informations de rendu audio dans un train de bits. Un dispositif configuré de sorte à rendre des coefficients ambiophoniques d'ordre supérieur comprenant un processeur et une mémoire peut mettre en uvre les techniques. Le processeur peut être configuré de sorte à obtenir des informations de symétrie de signe indiquant une symétrie de signe d'une matrice utilisée pour rendre les coefficients ambiophoniques d'ordre supérieur afin de générer une pluralité de flux de haut-parleur. La mémoire peut être configurée de sorte à mémoriser les informations de dispersion.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201462005829P | 2014-05-30 | 2014-05-30 | |
| US62/005,829 | 2014-05-30 | ||
| US201462023662P | 2014-07-11 | 2014-07-11 | |
| US62/023,662 | 2014-07-11 | ||
| US14/724,615 US9883310B2 (en) | 2013-02-08 | 2015-05-28 | Obtaining symmetry information for higher order ambisonic audio renderers |
| US14/724,615 | 2015-05-28 | ||
| PCT/US2015/033273 WO2015184316A1 (fr) | 2014-05-30 | 2015-05-29 | Obtention d'informations de symétrie pour des moteurs de rendu audio ambiophonique d'ordre supérieur |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2950014A1 CA2950014A1 (fr) | 2015-12-03 |
| CA2950014C true CA2950014C (fr) | 2019-12-03 |
Family
ID=53366342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2950014A Active CA2950014C (fr) | 2014-05-30 | 2015-05-29 | Obtention d'informations de symetrie pour des moteurs de rendu audio ambiophonique d'ordre superieur |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP3149972B1 (fr) |
| JP (1) | JP6423009B2 (fr) |
| KR (1) | KR101941764B1 (fr) |
| CN (1) | CN106465029B (fr) |
| BR (1) | BR112016028212B1 (fr) |
| CA (1) | CA2950014C (fr) |
| ES (1) | ES2696930T3 (fr) |
| HU (1) | HUE039048T2 (fr) |
| WO (1) | WO2015184316A1 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10015618B1 (en) * | 2017-08-01 | 2018-07-03 | Google Llc | Incoherent idempotent ambisonics rendering |
| US11699451B2 (en) | 2018-07-02 | 2023-07-11 | Dolby Laboratories Licensing Corporation | Methods and devices for encoding and/or decoding immersive audio signals |
| CN110099351B (zh) * | 2019-04-01 | 2020-11-03 | 中车青岛四方机车车辆股份有限公司 | 一种声场回放方法、装置和系统 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2010305313B2 (en) * | 2009-10-07 | 2015-05-28 | The University Of Sydney | Reconstruction of a recorded sound field |
| EP2873253B1 (fr) * | 2012-07-16 | 2019-11-13 | Dolby International AB | Procédé et dispositif de restitution d'une représentation de champs sonores audio pour une lecture audio |
| US9883312B2 (en) | 2013-05-29 | 2018-01-30 | Qualcomm Incorporated | Transformed higher order ambisonics audio data |
-
2015
- 2015-05-29 KR KR1020167033118A patent/KR101941764B1/ko active IP Right Grant
- 2015-05-29 BR BR112016028212-4A patent/BR112016028212B1/pt active IP Right Grant
- 2015-05-29 WO PCT/US2015/033273 patent/WO2015184316A1/fr active Application Filing
- 2015-05-29 EP EP15727844.1A patent/EP3149972B1/fr active Active
- 2015-05-29 HU HUE15727844A patent/HUE039048T2/hu unknown
- 2015-05-29 CA CA2950014A patent/CA2950014C/fr active Active
- 2015-05-29 ES ES15727844T patent/ES2696930T3/es active Active
- 2015-05-29 CN CN201580029278.4A patent/CN106465029B/zh active Active
- 2015-05-29 JP JP2016569921A patent/JP6423009B2/ja active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP3149972B1 (fr) | 2018-08-15 |
| CA2950014A1 (fr) | 2015-12-03 |
| BR112016028212B1 (pt) | 2022-08-23 |
| EP3149972A1 (fr) | 2017-04-05 |
| HUE039048T2 (hu) | 2018-12-28 |
| WO2015184316A1 (fr) | 2015-12-03 |
| BR112016028212A2 (pt) | 2017-08-22 |
| KR20170015898A (ko) | 2017-02-10 |
| ES2696930T3 (es) | 2019-01-18 |
| KR101941764B1 (ko) | 2019-01-23 |
| JP2017520174A (ja) | 2017-07-20 |
| JP6423009B2 (ja) | 2018-11-14 |
| CN106465029A (zh) | 2017-02-22 |
| CN106465029B (zh) | 2018-05-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20180808 |