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MX2022008695A - 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
MX2022008695A
MX2022008695A MX2022008695A MX2022008695A MX2022008695A MX 2022008695 A MX2022008695 A MX 2022008695A MX 2022008695 A MX2022008695 A MX 2022008695A MX 2022008695 A MX2022008695 A MX 2022008695A MX 2022008695 A MX2022008695 A MX 2022008695A
Authority
MX
Mexico
Prior art keywords
hoa
sound field
representation
directional signals
decompressing
Prior art date
Application number
MX2022008695A
Other languages
English (en)
Inventor
Johannes Boehm
Sven Kordon
Alexander Krueger
Original Assignee
Dolby Int Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dolby Int Ab filed Critical Dolby Int Ab
Publication of MX2022008695A publication Critical patent/MX2022008695A/es

Links

Classifications

    • 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 
    • 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
    • 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)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (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.
MX2022008695A 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 (es)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
MX2022008695A true MX2022008695A (es) 2022-08-08

Family

ID=47715805

Family Applications (7)

Application Number Title Priority Date Filing Date
MX2017000541A MX395017B (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
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.
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.
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.
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.
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.

Family Applications Before (2)

Application Number Title Priority Date Filing Date
MX2017000541A MX395017B (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
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.

Family Applications After (4)

Application Number Title Priority Date Filing Date
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.
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.
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.

Country Status (11)

Country Link
US (7) US9646618B2 (es)
EP (5) EP2743922A1 (es)
JP (7) JP6285458B2 (es)
KR (5) KR102546541B1 (es)
CN (9) CN117037812A (es)
CA (6) CA3125248C (es)
MX (7) MX395017B (es)
MY (2) MY169354A (es)
RU (2) RU2744489C2 (es)
TW (7) TWI611397B (es)
WO (1) WO2014090660A1 (es)

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Also Published As

Publication number Publication date
US20170208412A1 (en) 2017-07-20
RU2623886C2 (ru) 2017-06-29
CN109448742A (zh) 2019-03-08
MX2022008697A (es) 2022-08-08
CN109616130B (zh) 2023-10-31
CN117037812A (zh) 2023-11-10
JP7353427B2 (ja) 2023-09-29
CA3125246C (en) 2023-09-12
CN104854655B (zh) 2019-02-19
CA3168322C (en) 2024-01-30
KR20230098355A (ko) 2023-07-03
KR20220113839A (ko) 2022-08-16
JP2025108471A (ja) 2025-07-23
CA3125246A1 (en) 2014-06-19
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