MX2021012883A - Aparato, metodo o programa informatico para generar una representacion de mezcla descendente de salida. - Google Patents

Aparato, metodo o programa informatico para generar una representacion de mezcla descendente de salida.

Info

Publication number
MX2021012883A
MX2021012883A MX2021012883A MX2021012883A MX2021012883A MX 2021012883 A MX2021012883 A MX 2021012883A MX 2021012883 A MX2021012883 A MX 2021012883A MX 2021012883 A MX2021012883 A MX 2021012883A MX 2021012883 A MX2021012883 A MX 2021012883A
Authority
MX
Mexico
Prior art keywords
generating
downmix representation
computer program
representation
downmixing
Prior art date
Application number
MX2021012883A
Other languages
English (en)
Inventor
Markus Multrus
Eleni Fotopoulou
Franz Reutelhuber
Original Assignee
Fraunhofer Ges Forschung
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 Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of MX2021012883A publication Critical patent/MX2021012883A/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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/04—Time compression or expansion
    • 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
    • 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H04S1/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H04S1/007—Two-channel systems in which the audio signals are in digital form
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
    • 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
    • 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 
    • 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
    • H04S2400/05—Generation or adaptation of centre channel in multi-channel audio systems
    • 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
    • H04S2420/07—Synergistic effects of band splitting and sub-band processing

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)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
  • Logic Circuits (AREA)
  • Reverberation, Karaoke And Other Acoustics (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Circuits Of Receivers In General (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Stored Programmes (AREA)

Abstract

Un aparato para generar una representación de mezcla descendente de salida de una representación de mezcla descendente de entrada, en donde al menos una porción de la representación de mezcla descendente de entrada es de acuerdo con un primer esquema de mezcla descendente, comprende: un mezclador ascendente (200) para mezcla de manera ascendente al menos la porción de la representación de mezcla descendente de entrada utilizando un esquema de mezclado ascendente que corresponde al primer esquema de mezcla descendente para obtener al menos una porción mezclada de manera ascendente; y un mezclador descendente (300) para mezclar de manera descendente la al menos una porción mezclada de manera ascendente de acuerdo con un segundo esquema de mezcla descendente diferente del primer esquema de mezcla descendente.
MX2021012883A 2019-04-23 2020-04-22 Aparato, metodo o programa informatico para generar una representacion de mezcla descendente de salida. MX2021012883A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP19170621 2019-04-23
PCT/EP2019/070376 WO2020216459A1 (en) 2019-04-23 2019-07-29 Apparatus, method or computer program for generating an output downmix representation
PCT/EP2020/061233 WO2020216797A1 (en) 2019-04-23 2020-04-22 Apparatus, method or computer program for generating an output downmix representation

Publications (1)

Publication Number Publication Date
MX2021012883A true MX2021012883A (es) 2021-11-17

Family

ID=66439870

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2021012883A MX2021012883A (es) 2019-04-23 2020-04-22 Aparato, metodo o programa informatico para generar una representacion de mezcla descendente de salida.

Country Status (13)

Country Link
US (1) US20220036911A1 (es)
EP (1) EP3959899A1 (es)
JP (2) JP7348304B2 (es)
KR (1) KR20220017400A (es)
CN (1) CN113853805A (es)
AU (1) AU2020262159B2 (es)
BR (1) BR112021021274A2 (es)
CA (1) CA3137446A1 (es)
MX (1) MX2021012883A (es)
SG (1) SG11202111413TA (es)
TW (1) TWI797445B (es)
WO (2) WO2020216459A1 (es)
ZA (1) ZA202109418B (es)

Family Cites Families (18)

* Cited by examiner, † Cited by third party
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US8983834B2 (en) * 2004-03-01 2015-03-17 Dolby Laboratories Licensing Corporation Multichannel audio coding
KR100923478B1 (ko) * 2004-03-12 2009-10-27 노키아 코포레이션 부호화된 다중채널 오디오 신호에 기반하여 모노 오디오신호를 합성하는 방법 및 장치
US7751572B2 (en) * 2005-04-15 2010-07-06 Dolby International Ab Adaptive residual audio coding
TWI475896B (zh) * 2008-09-25 2015-03-01 Dolby Lab Licensing Corp 單音相容性及揚聲器相容性之立體聲濾波器
JP5608660B2 (ja) * 2008-10-10 2014-10-15 テレフオンアクチーボラゲット エル エム エリクソン（パブル） エネルギ保存型マルチチャネルオーディオ符号化
MX2011011399A (es) * 2008-10-17 2012-06-27 Univ Friedrich Alexander Er Aparato para suministrar uno o más parámetros ajustados para un suministro de una representación de señal de mezcla ascendente sobre la base de una representación de señal de mezcla descendete, decodificador de señal de audio, transcodificador de señal de audio, codificador de señal de audio, flujo de bits de audio, método y programa de computación que utiliza información paramétrica relacionada con el objeto.
DE102008056704B4 (de) 2008-11-11 2010-11-04 Institut für Rundfunktechnik GmbH Verfahren zum Erzeugen eines abwärtskompatiblen Tonformates
WO2010097748A1 (en) * 2009-02-27 2010-09-02 Koninklijke Philips Electronics N.V. Parametric stereo encoding and decoding
EP3093843B1 (en) * 2009-09-29 2020-12-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Mpeg-saoc audio signal decoder, mpeg-saoc audio signal encoder, method for providing an upmix signal representation using mpeg-saoc decoding, method for providing a downmix signal representation using mpeg-saoc decoding, and computer program using a time/frequency-dependent common inter-object-correlation parameter value
JP5758902B2 (ja) * 2009-10-16 2015-08-05 フラウンホッファー−ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー．ファオ ダウンミックス信号表現と、ダウンミックス信号表現に関係するパラメトリックサイド情報に基づくアップミックス信号表現の提供に対して、平均値を用いて、１つ以上の調整されたパラメータを提供する装置、方法およびコンピュータプログラム
WO2013186343A2 (en) * 2012-06-14 2013-12-19 Dolby International Ab Smooth configuration switching for multichannel audio
EP2830336A3 (en) * 2013-07-22 2015-03-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Renderer controlled spatial upmix
TWI671734B (zh) * 2013-09-12 2019-09-11 瑞典商杜比國際公司 在包含三個音訊聲道的多聲道音訊系統中之解碼方法、編碼方法、解碼裝置及編碼裝置、包含用於執行解碼方法及編碼方法的指令之非暫態電腦可讀取的媒體之電腦程式產品、包含解碼裝置及編碼裝置的音訊系統
MY179448A (en) * 2014-10-02 2020-11-06 Dolby Int Ab Decoding method and decoder for dialog enhancement
EP3067887A1 (en) * 2015-03-09 2016-09-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder for encoding a multichannel signal and audio decoder for decoding an encoded audio signal
KR102083200B1 (ko) * 2016-01-22 2020-04-28 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 스펙트럼-도메인 리샘플링을 사용하여 멀티-채널 신호를 인코딩 또는 디코딩하기 위한 장치 및 방법
JP6817433B2 (ja) 2016-11-08 2021-01-20 フラウンホファー ゲセルシャフト ツール フェールデルンク ダー アンゲヴァンテン フォルシュンク エー．ファオ． 少なくとも２つのチャンネルをダウンミックスするためのダウンミキサおよび方法ならびにマルチチャンネルエンコーダおよびマルチチャンネルデコーダ
US10573326B2 (en) * 2017-04-05 2020-02-25 Qualcomm Incorporated Inter-channel bandwidth extension

Also Published As

Publication number Publication date
ZA202109418B (en) 2023-06-28
EP3959899A1 (en) 2022-03-02
WO2020216797A1 (en) 2020-10-29
BR112021021274A2 (pt) 2021-12-21
US20220036911A1 (en) 2022-02-03
CA3137446A1 (en) 2020-10-29
SG11202111413TA (en) 2021-11-29
KR20220017400A (ko) 2022-02-11
JP7348304B2 (ja) 2023-09-20
JP2023164971A (ja) 2023-11-14
CN113853805A (zh) 2021-12-28
JP2022529731A (ja) 2022-06-23
AU2020262159A1 (en) 2021-11-11
TW202103144A (zh) 2021-01-16
WO2020216459A1 (en) 2020-10-29
AU2020262159B2 (en) 2023-03-16
TWI797445B (zh) 2023-04-01

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