MX395017B - 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
MX395017B
MX395017B MX2017000541A MX2017000541A MX395017B MX 395017 B MX395017 B MX 395017B MX 2017000541 A MX2017000541 A MX 2017000541A MX 2017000541 A MX2017000541 A MX 2017000541A MX 395017 B MX395017 B MX 395017B
Authority
MX
Mexico
Prior art keywords
hoa
representation
sound field
directional signals
dominant
Prior art date
Application number
MX2017000541A
Other languages
English (en)
Inventor
Alexander Krueger
Johannes Boehm
Sven Kordon
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 MX395017B publication Critical patent/MX395017B/es

Links

Classifications

    • 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)
  • 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 invencion mejora la compresion de representacion de campo de sonido HOA. La representacion HOA es analizada en busca de la presencia de fuentes de sonido dominantes y se calculan sus direcciones. Despues, la representacion HOA es descompuesta en un numero de senales 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 senales direccionales dominantes. Finalmente, el error de prediccion es transformado de regreso al dominio HOA y representa el componente HOA de ambiente residual para el cual se ejecuta una reduccion de orden, seguido por codificacion perceptiva de las senales direccionales dominantes y el componente residual.
MX2017000541A 2012-12-12 2013-12-04 Metodo y aparato para comprimir y descomprimir una representacion ambisonica de orden superior para un campo de sonido MX395017B (es)

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 (1)

Publication Number Publication Date
MX395017B true MX395017B (es) 2025-03-24

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.
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.
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.
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.
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.

Family Applications After (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.
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.
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.
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.

Country Status (11)

Country Link
US (8) US9646618B2 (es)
EP (5) EP2743922A1 (es)
JP (7) JP6285458B2 (es)
KR (5) KR102546541B1 (es)
CN (9) CN109545235B (es)
CA (6) CA3168326A1 (es)
MX (7) MX395017B (es)
MY (2) MY169354A (es)
RU (2) RU2623886C2 (es)
TW (7) TWI868526B (es)
WO (1) WO2014090660A1 (es)

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KR20220113839A (ko) 2022-08-16
MX2022008693A (es) 2022-08-08
CN109410965A (zh) 2019-03-01
JP6285458B2 (ja) 2018-02-28
KR102428842B1 (ko) 2022-08-04
US20260082172A1 (en) 2026-03-19
EP3496096B1 (en) 2021-12-22
US10038965B2 (en) 2018-07-31
US20170208412A1 (en) 2017-07-20
JP2025108471A (ja) 2025-07-23
JP2020074008A (ja) 2020-05-14
US10609501B2 (en) 2020-03-31
CN109448742B (zh) 2023-09-01
EP2743922A1 (en) 2014-06-18
TW201435858A (zh) 2014-09-16
EP3996090A1 (en) 2022-05-11
JP6640890B2 (ja) 2020-02-05
CN117037813A (zh) 2023-11-10
US20200296531A1 (en) 2020-09-17
CN109410965B (zh) 2023-10-31
KR20210007036A (ko) 2021-01-19
CA3125228C (en) 2023-10-17
CN109616130A (zh) 2019-04-12
CA3125246C (en) 2023-09-12
CN109448743A (zh) 2019-03-08
EP3496096A1 (en) 2019-06-12
CN109616130B (zh) 2023-10-31
CN117037812A (zh) 2023-11-10
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