MX344988B - Metodo y aparato para comprimir y descomprimir una representacion ambisonica de orden superior para un campo de sonido. - Google Patents
Metodo y aparato para comprimir y descomprimir una representacion ambisonica de orden superior para un campo de sonido.Info
- Publication number
- MX344988B MX344988B MX2015007349A MX2015007349A MX344988B MX 344988 B MX344988 B MX 344988B MX 2015007349 A MX2015007349 A MX 2015007349A MX 2015007349 A MX2015007349 A MX 2015007349A MX 344988 B MX344988 B MX 344988B
- Authority
- MX
- Mexico
- Prior art keywords
- hoa
- sound field
- representation
- directional signals
- decompressing
- Prior art date
Links
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000005070 sampling Methods 0.000 abstract 1
- 230000005428 wave function Effects 0.000 abstract 1
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
- H04S7/302—Electronic adaptation of stereophonic sound system to listener position or orientation
-
- 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
- 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
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/86—Arrangements characterised by the broadcast information itself
- H04H20/88—Stereophonic broadcast systems
- H04H20/89—Stereophonic broadcast systems using three or more audio channels, e.g. triphonic or quadraphonic
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computational Linguistics (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Health & Medical Sciences (AREA)
- Mathematical Physics (AREA)
- Stereophonic System (AREA)
- Percussion Or Vibration Massage (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
La invención mejora la compresión de representación de campo de sonido HOA. La representación HOA es analizada en busca de la presencia de fuentes de sonido dominantes y se calculan sus direcciones. Después, la representación HOA es descompuesta en un número de señales direccionales dominantes y un componente residual. Este componente residual es transformado en el dominio espacial discreto a fin de obtener funciones de onda de plano generales en direcciones de muestreo uniformes, las cuales son predichas a partir de señales direccionales dominantes. Finalmente, el error de predicción es transformado de regreso al dominio HOA y representa el componente HOA de ambiente residual para el cual se ejecuta una reducción de orden, seguido por codificación perceptiva de las señales direccionales dominantes y el componente residual.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12306569.0A EP2743922A1 (en) | 2012-12-12 | 2012-12-12 | Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field |
PCT/EP2013/075559 WO2014090660A1 (en) | 2012-12-12 | 2013-12-04 | Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field |
Publications (2)
Publication Number | Publication Date |
---|---|
MX2015007349A MX2015007349A (es) | 2015-09-10 |
MX344988B true MX344988B (es) | 2017-01-13 |
Family
ID=47715805
Family Applications (6)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2015007349A MX344988B (es) | 2012-12-12 | 2013-12-04 | Metodo y aparato para comprimir y descomprimir una representacion ambisonica de orden superior para un campo de sonido. |
MX2022008693A MX2022008693A (es) | 2012-12-12 | 2015-06-10 | Metodo y aparato para comprimir y descomprimir una representacion ambisonica de orden superior para un campo de sonido. |
MX2022008697A MX2022008697A (es) | 2012-12-12 | 2015-06-10 | Metodo y aparato para comprimir y descomprimir una representacion ambisonica de orden superior para un campo de sonido. |
MX2022008695A MX2022008695A (es) | 2012-12-12 | 2015-06-10 | Metodo y aparato para comprimir y descomprimir una representacion ambisonica de orden superior para un campo de sonido. |
MX2023008863A MX2023008863A (es) | 2012-12-12 | 2015-06-10 | Metodo y aparato para comprimir y descomprimir una representacion ambisonica de orden superior para un campo de sonido. |
MX2022008694A MX2022008694A (es) | 2012-12-12 | 2015-06-10 | Metodo y aparato para comprimir y descomprimir una representacion ambisonica de orden superior para un campo de sonido. |
Family Applications After (5)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2022008693A MX2022008693A (es) | 2012-12-12 | 2015-06-10 | Metodo y aparato para comprimir y descomprimir una representacion ambisonica de orden superior para un campo de sonido. |
MX2022008697A MX2022008697A (es) | 2012-12-12 | 2015-06-10 | Metodo y aparato para comprimir y descomprimir una representacion ambisonica de orden superior para un campo de sonido. |
MX2022008695A MX2022008695A (es) | 2012-12-12 | 2015-06-10 | Metodo y aparato para comprimir y descomprimir una representacion ambisonica de orden superior para un campo de sonido. |
MX2023008863A MX2023008863A (es) | 2012-12-12 | 2015-06-10 | Metodo y aparato para comprimir y descomprimir una representacion ambisonica de orden superior para un campo de sonido. |
MX2022008694A MX2022008694A (es) | 2012-12-12 | 2015-06-10 | Metodo y aparato para comprimir y descomprimir una representacion ambisonica de orden superior para un campo de sonido. |
Country Status (12)
Country | Link |
---|---|
US (7) | US9646618B2 (es) |
EP (4) | EP2743922A1 (es) |
JP (6) | JP6285458B2 (es) |
KR (5) | KR102202973B1 (es) |
CN (9) | CN104854655B (es) |
CA (6) | CA3125246C (es) |
HK (1) | HK1216356A1 (es) |
MX (6) | MX344988B (es) |
MY (2) | MY169354A (es) |
RU (2) | RU2744489C2 (es) |
TW (6) | TW202338788A (es) |
WO (1) | WO2014090660A1 (es) |
Families Citing this family (46)
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EP2665208A1 (en) | 2012-05-14 | 2013-11-20 | Thomson Licensing | Method and apparatus for compressing and decompressing a Higher Order Ambisonics signal representation |
EP2743922A1 (en) * | 2012-12-12 | 2014-06-18 | Thomson Licensing | Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field |
US9685163B2 (en) | 2013-03-01 | 2017-06-20 | Qualcomm Incorporated | Transforming spherical harmonic coefficients |
EP2800401A1 (en) | 2013-04-29 | 2014-11-05 | Thomson Licensing | Method and Apparatus for compressing and decompressing a Higher Order Ambisonics representation |
US9769586B2 (en) | 2013-05-29 | 2017-09-19 | Qualcomm Incorporated | Performing order reduction with respect to higher order ambisonic coefficients |
US9466305B2 (en) | 2013-05-29 | 2016-10-11 | Qualcomm Incorporated | Performing positional analysis to code spherical harmonic coefficients |
EP2824661A1 (en) | 2013-07-11 | 2015-01-14 | Thomson Licensing | Method and Apparatus for generating from a coefficient domain representation of HOA signals a mixed spatial/coefficient domain representation of said HOA signals |
CN105981100B (zh) | 2014-01-08 | 2020-02-28 | 杜比国际公司 | 用于改善对声场的高阶高保真度立体声响复制表示进行编码所需的边信息的编码的方法和装置 |
US9489955B2 (en) | 2014-01-30 | 2016-11-08 | Qualcomm Incorporated | Indicating frame parameter reusability for coding vectors |
US9922656B2 (en) | 2014-01-30 | 2018-03-20 | Qualcomm Incorporated | Transitioning of ambient higher-order ambisonic coefficients |
CN109410961B (zh) | 2014-03-21 | 2023-08-25 | 杜比国际公司 | 用于对压缩的hoa信号进行解码的方法、装置和存储介质 |
EP4089674A1 (en) | 2014-03-21 | 2022-11-16 | Dolby International AB | Method for decompressing a compressed hoa signal and apparatus for decompressing a compressed hoa signal |
EP2922057A1 (en) | 2014-03-21 | 2015-09-23 | Thomson Licensing | Method for compressing a Higher Order Ambisonics (HOA) signal, method for decompressing a compressed HOA signal, apparatus for compressing a HOA signal, and apparatus for decompressing a compressed HOA signal |
US10770087B2 (en) * | 2014-05-16 | 2020-09-08 | Qualcomm Incorporated | Selecting codebooks for coding vectors decomposed from higher-order ambisonic audio signals |
US9620137B2 (en) | 2014-05-16 | 2017-04-11 | Qualcomm Incorporated | Determining between scalar and vector quantization in higher order ambisonic coefficients |
US9852737B2 (en) | 2014-05-16 | 2017-12-26 | Qualcomm Incorporated | Coding vectors decomposed from higher-order ambisonics audio signals |
US9792924B2 (en) * | 2014-06-27 | 2017-10-17 | Dolby Laboratories Licensing Corporation | Apparatus for determining for the compression of an HOA data frame representation a lowest integer number of bits required for representing non-differential gain values |
EP2960903A1 (en) | 2014-06-27 | 2015-12-30 | Thomson Licensing | Method and apparatus for determining for the compression of an HOA data frame representation a lowest integer number of bits required for representing non-differential gain values |
WO2015197517A1 (en) * | 2014-06-27 | 2015-12-30 | Thomson Licensing | Coded hoa data frame representation that includes non-differential gain values associated with channel signals of specific ones of the data frames of an hoa data frame representation |
US9922657B2 (en) | 2014-06-27 | 2018-03-20 | Dolby Laboratories Licensing Corporation | Method for determining for the compression of an HOA data frame representation a lowest integer number of bits required for representing non-differential gain values |
EP3164868A1 (en) * | 2014-07-02 | 2017-05-10 | Dolby International AB | Method and apparatus for decoding a compressed hoa representation, and method and apparatus for encoding a compressed hoa representation |
US9838819B2 (en) * | 2014-07-02 | 2017-12-05 | Qualcomm Incorporated | Reducing correlation between higher order ambisonic (HOA) background channels |
EP2963948A1 (en) * | 2014-07-02 | 2016-01-06 | Thomson Licensing | Method and apparatus for encoding/decoding of directions of dominant directional signals within subbands of a HOA signal representation |
WO2016001355A1 (en) * | 2014-07-02 | 2016-01-07 | Thomson Licensing | Method and apparatus for encoding/decoding of directions of dominant directional signals within subbands of a hoa signal representation |
EP2963949A1 (en) * | 2014-07-02 | 2016-01-06 | Thomson Licensing | Method and apparatus for decoding a compressed HOA representation, and method and apparatus for encoding a compressed HOA representation |
KR102363275B1 (ko) * | 2014-07-02 | 2022-02-16 | 돌비 인터네셔널 에이비 | Hoa 신호 표현의 부대역들 내의 우세 방향 신호들의 방향들의 인코딩/디코딩을 위한 방법 및 장치 |
US9847088B2 (en) * | 2014-08-29 | 2017-12-19 | Qualcomm Incorporated | Intermediate compression for higher order ambisonic audio data |
US9747910B2 (en) | 2014-09-26 | 2017-08-29 | Qualcomm Incorporated | Switching between predictive and non-predictive quantization techniques in a higher order ambisonics (HOA) framework |
US10140996B2 (en) * | 2014-10-10 | 2018-11-27 | Qualcomm Incorporated | Signaling layers for scalable coding of higher order ambisonic audio data |
EP3007167A1 (en) * | 2014-10-10 | 2016-04-13 | Thomson Licensing | Method and apparatus for low bit rate compression of a Higher Order Ambisonics HOA signal representation of a sound field |
US10468037B2 (en) | 2015-07-30 | 2019-11-05 | Dolby Laboratories Licensing Corporation | Method and apparatus for generating from an HOA signal representation a mezzanine HOA signal representation |
US10257632B2 (en) | 2015-08-31 | 2019-04-09 | Dolby Laboratories Licensing Corporation | Method for frame-wise combined decoding and rendering of a compressed HOA signal and apparatus for frame-wise combined decoding and rendering of a compressed HOA signal |
US9961467B2 (en) | 2015-10-08 | 2018-05-01 | Qualcomm Incorporated | Conversion from channel-based audio to HOA |
US9961475B2 (en) | 2015-10-08 | 2018-05-01 | Qualcomm Incorporated | Conversion from object-based audio to HOA |
US10249312B2 (en) * | 2015-10-08 | 2019-04-02 | Qualcomm Incorporated | Quantization of spatial vectors |
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US9881628B2 (en) * | 2016-01-05 | 2018-01-30 | Qualcomm Incorporated | Mixed domain coding of audio |
CN108476373B (zh) * | 2016-01-27 | 2020-11-17 | 华为技术有限公司 | 一种处理声场数据的方法和装置 |
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CN107945810B (zh) * | 2016-10-13 | 2021-12-14 | 杭州米谟科技有限公司 | 用于编码和解码hoa或多声道数据的方法和装置 |
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EP2743922A1 (en) * | 2012-12-12 | 2014-06-18 | Thomson Licensing | Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field |
EP2765791A1 (en) * | 2013-02-08 | 2014-08-13 | Thomson Licensing | Method and apparatus for determining directions of uncorrelated sound sources in a higher order ambisonics representation of a sound field |
EP2800401A1 (en) * | 2013-04-29 | 2014-11-05 | Thomson Licensing | Method and Apparatus for compressing and decompressing a Higher Order Ambisonics representation |
US9769586B2 (en) * | 2013-05-29 | 2017-09-19 | Qualcomm Incorporated | Performing order reduction with respect to higher order ambisonic coefficients |
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2012
- 2012-12-12 EP EP12306569.0A patent/EP2743922A1/en not_active Withdrawn
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2013
- 2013-12-04 CA CA3125246A patent/CA3125246C/en active Active
- 2013-12-04 RU RU2017118830A patent/RU2744489C2/ru active
- 2013-12-04 CN CN201380064856.9A patent/CN104854655B/zh active Active
- 2013-12-04 CA CA3125228A patent/CA3125228C/en active Active
- 2013-12-04 RU RU2015128090A patent/RU2623886C2/ru active
- 2013-12-04 EP EP21209477.5A patent/EP3996090A1/en active Pending
- 2013-12-04 CN CN201910024898.9A patent/CN109448743B/zh active Active
- 2013-12-04 CN CN202310889802.1A patent/CN117037813A/zh active Pending
- 2013-12-04 CA CA2891636A patent/CA2891636C/en active Active
- 2013-12-04 CA CA3168322A patent/CA3168322C/en active Active
- 2013-12-04 CN CN201910024906.XA patent/CN109545235B/zh active Active
- 2013-12-04 KR KR1020157015332A patent/KR102202973B1/ko active IP Right Grant
- 2013-12-04 CN CN201910024895.5A patent/CN109448742B/zh active Active
- 2013-12-04 EP EP13801563.1A patent/EP2932502B1/en active Active
- 2013-12-04 CN CN201910024905.5A patent/CN109616130B/zh active Active
- 2013-12-04 WO PCT/EP2013/075559 patent/WO2014090660A1/en active Application Filing
- 2013-12-04 CN CN202311300470.5A patent/CN117392989A/zh active Pending
- 2013-12-04 KR KR1020237020580A patent/KR102664626B1/ko active IP Right Grant
- 2013-12-04 US US14/651,313 patent/US9646618B2/en active Active
- 2013-12-04 KR KR1020247014936A patent/KR20240068780A/ko active Search and Examination
- 2013-12-04 CN CN202310889797.4A patent/CN117037812A/zh active Pending
- 2013-12-04 EP EP18196348.9A patent/EP3496096B1/en active Active
- 2013-12-04 JP JP2015546945A patent/JP6285458B2/ja active Active
- 2013-12-04 CA CA3125248A patent/CA3125248C/en active Active
- 2013-12-04 CA CA3168326A patent/CA3168326A1/en active Pending
- 2013-12-04 KR KR1020217000640A patent/KR102428842B1/ko active IP Right Grant
- 2013-12-04 MX MX2015007349A patent/MX344988B/es active IP Right Grant
- 2013-12-04 CN CN201910024894.0A patent/CN109410965B/zh active Active
- 2013-12-04 MY MYPI2015001234A patent/MY169354A/en unknown
- 2013-12-04 KR KR1020227026512A patent/KR102546541B1/ko active IP Right Grant
- 2013-12-05 TW TW111146080A patent/TW202338788A/zh unknown
- 2013-12-05 TW TW102144508A patent/TWI611397B/zh active
- 2013-12-05 TW TW107135270A patent/TWI681386B/zh active
- 2013-12-05 TW TW108142367A patent/TWI729581B/zh active
- 2013-12-05 TW TW106137200A patent/TWI645397B/zh active
- 2013-12-05 TW TW110115843A patent/TWI788833B/zh active
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2015
- 2015-06-10 MX MX2022008693A patent/MX2022008693A/es unknown
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