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CL2017001037A1 - Mezcla paramétrica de señales de audio - Google Patents

Mezcla paramétrica de señales de audio

Info

Publication number
CL2017001037A1
CL2017001037A1 CL2017001037A CL2017001037A CL2017001037A1 CL 2017001037 A1 CL2017001037 A1 CL 2017001037A1 CL 2017001037 A CL2017001037 A CL 2017001037A CL 2017001037 A CL2017001037 A CL 2017001037A CL 2017001037 A1 CL2017001037 A1 CL 2017001037A1
Authority
CL
Chile
Prior art keywords
mixing
signal
channel
descending
section
Prior art date
Application number
CL2017001037A
Other languages
English (en)
Inventor
Heiko Purnhagen
Lars Villemoes
Heidi Maria Lehtonen
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 CL2017001037A1 publication Critical patent/CL2017001037A1/es

Links

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/008Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/04Speech 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
    • G10L19/16Vocoder architecture
    • G10L19/167Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04SSTEREOPHONIC SYSTEMS 
    • H04S3/00Systems employing more than two channels, e.g. quadraphonic
    • H04S3/008Systems 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04SSTEREOPHONIC SYSTEMS 
    • H04S2400/00Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/01Multi-channel, i.e. more than two input channels, sound reproduction with two speakers wherein the multi-channel information is substantially preserved
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04SSTEREOPHONIC SYSTEMS 
    • H04S2400/00Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/03Aspects of down-mixing multi-channel audio to configurations with lower numbers of playback channels, e.g. 7.1 -> 5.1
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04SSTEREOPHONIC SYSTEMS 
    • H04S2420/00Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/03Application of parametric coding in stereophonic audio systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Mathematical Physics (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

<p>EN UNA SECCIÓN DE CODIFICACIÓN, UNA SECCIÓN DE MEZCLA DESCENDENTE FORMA EL PRIMER Y EL SEGUNDO CANAL DE UNA SEÑAL DE MEZCLA DESCENDENTE COMA COMBINACIONES LINEALES DEL PRIMER Y EL SEGUNDO GRUPO DE CANALES, RESPECTIVAMENTE, DE UNA SEÑAL DE AUDIO DEL CANAL M Y UNA SECCIÓN DE ANÁLISIS DETERMINA LOS PARÁMETROS DE MEZCLA ASCENDENTE PARA LA RECONSTRUCCIÓN PARAMÉTRICA DE LA SEÑAL DE AUDIO, Y LOS PARÁMETROS DE MEZCLA. EN UNA SECCIÓN DE DECODIFICACIÓN, UNA SECCIÓN DE DESCORRELACIÓN PRODUCE UNA SEÑAL DESCORRELACIONADA EN BASE A LA SEÑAL DE MEZCLA DESCENDENTE: Y UNA SECCIÓN DE MEZCLA DETERMINE LOS COEFICIENTES DE MEZCLA EN BASE A LOS PARÁMETROS DE MEZCLA A LOS PARÁMETROS DE MEZCLA ASCENDENTE, Y FORMA UNA SEÑAL DE SALIDA DEL CANAL K COMO UNA COMBINACIÓN LINEAL DE LA SEÑAL DE MEZCLA DESCENDENTE Y LA SEÑAL DESCORRELACIONADA CONFORME CON LOS COEFICIENTES DE MEZCLA. LOS CANALES DE LA SEÑAL DE SALIDA SE APROXIMAN A COMBINACIONES LINEALES DE LOS GRUPOS K DE LOS CANALES, RESPECTIVAMENTE,  DE LA SEÑAL DE AUDIO. LOS GRUPOS K CONSTITUYEN UNA PARTICIÓN DIFERENTE DE LA SEÑAL DE AUDIO EN COMPARACIÓN CON EL PRIMER GRUPO Y EL SEGUNDO GRUPO, Y 2 ≤K ?M.</p>
CL2017001037A 2014-10-31 2017-04-26 Mezcla paramétrica de señales de audio CL2017001037A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201462073462P 2014-10-31 2014-10-31
US201562167711P 2015-05-28 2015-05-28

Publications (1)

Publication Number Publication Date
CL2017001037A1 true CL2017001037A1 (es) 2017-12-01

Family

ID=54364338

Family Applications (1)

Application Number Title Priority Date Filing Date
CL2017001037A CL2017001037A1 (es) 2014-10-31 2017-04-26 Mezcla paramétrica de señales de audio

Country Status (39)

Country Link
US (1) US9930465B2 (es)
EP (1) EP3213322B1 (es)
JP (1) JP6686015B2 (es)
KR (1) KR102501969B1 (es)
CN (1) CN107112020B (es)
AU (1) AU2015340622B2 (es)
CA (1) CA2965731C (es)
CL (1) CL2017001037A1 (es)
CO (1) CO2017004283A2 (es)
CY (1) CY1121917T1 (es)
DK (1) DK3213322T3 (es)
EA (1) EA034250B1 (es)
EC (1) ECSP17023702A (es)
ES (1) ES2732668T3 (es)
GE (2) GEAP201814481A (es)
GT (1) GT201700088A (es)
HK (1) HK1243547B (es)
HR (1) HRP20191107T1 (es)
HU (1) HUE044368T2 (es)
IL (1) IL251789B (es)
LT (1) LT3213322T (es)
ME (1) ME03453B (es)
MX (1) MX364405B (es)
MY (1) MY190174A (es)
PE (1) PE20170759A1 (es)
PH (1) PH12017500723B1 (es)
PL (1) PL3213322T3 (es)
PT (1) PT3213322T (es)
RS (1) RS58874B1 (es)
SA (1) SA517381440B1 (es)
SG (1) SG11201703263PA (es)
SI (1) SI3213322T1 (es)
SV (1) SV2017005431A (es)
TN (1) TN2017000143A1 (es)
TW (1) TWI587286B (es)
UA (1) UA123388C2 (es)
UY (1) UY36378A (es)
WO (1) WO2016066705A1 (es)
ZA (1) ZA201702647B (es)

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US9674587B2 (en) * 2012-06-26 2017-06-06 Sonos, Inc. Systems and methods for networked music playback including remote add to queue
BR112017008015B1 (pt) * 2014-10-31 2023-11-14 Dolby International Ab Métodos e sistemas de decodificação e codificação de áudio
WO2016172254A1 (en) 2015-04-21 2016-10-27 Dolby Laboratories Licensing Corporation Spatial audio signal manipulation
TWI808298B (zh) * 2019-01-21 2023-07-11 弗勞恩霍夫爾協會 對空間音訊表示進行編碼的裝置和方法或使用傳輸後設資料對編碼音訊訊號進行解碼的裝置和方法和相關計算機程式
US11523239B2 (en) * 2019-07-22 2022-12-06 Hisense Visual Technology Co., Ltd. Display apparatus and method for processing audio
AU2020340937A1 (en) 2019-09-03 2022-03-24 Dolby Laboratories Licensing Corporation Low-latency, low-frequency effects codec
US20250022474A1 (en) * 2021-11-26 2025-01-16 Beijing Xiaomi Mobile Software Co., Ltd. Stereo audio signal processing method, communication apparatus, and storage medium
CN117730367A (zh) * 2023-10-31 2024-03-19 北京小米移动软件有限公司 分组方法、编码器、解码器以及存储介质

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US20060106620A1 (en) 2004-10-28 2006-05-18 Thompson Jeffrey K Audio spatial environment down-mixer
SE0402649D0 (sv) * 2004-11-02 2004-11-02 Coding Tech Ab Advanced methods of creating orthogonal signals
WO2006054270A1 (en) 2004-11-22 2006-05-26 Bang & Olufsen A/S A method and apparatus for multichannel upmixing and downmixing
CA2595625A1 (en) 2005-01-24 2006-07-27 Thx, Ltd. Ambient and direct surround sound system
TWI313857B (en) * 2005-04-12 2009-08-21 Coding Tech Ab Apparatus for generating a parameter representation of a multi-channel signal and method for representing multi-channel audio signals
DE602006004959D1 (de) * 2005-04-15 2009-03-12 Dolby Sweden Ab Zeitliche hüllkurvenformgebung von entkorrelierten signalen
CN103366747B (zh) * 2006-02-03 2017-05-17 韩国电子通信研究院 用于控制音频信号的渲染的设备和方法
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KR102381216B1 (ko) 2013-10-21 2022-04-08 돌비 인터네셔널 에이비 오디오 신호들의 파라메트릭 재구성

Also Published As

Publication number Publication date
JP2017537342A (ja) 2017-12-14
CA2965731A1 (en) 2016-05-06
JP6686015B2 (ja) 2020-04-22
DK3213322T3 (da) 2019-07-15
TWI587286B (zh) 2017-06-11
HRP20191107T1 (hr) 2019-10-18
MX2017005409A (es) 2017-06-21
ES2732668T3 (es) 2019-11-25
LT3213322T (lt) 2019-09-25
KR102501969B1 (ko) 2023-02-21
BR112017007521A2 (pt) 2017-12-19
PH12017500723B1 (en) 2021-06-18
PL3213322T3 (pl) 2019-09-30
AU2015340622A1 (en) 2017-04-20
CY1121917T1 (el) 2020-10-14
IL251789B (en) 2019-07-31
US9930465B2 (en) 2018-03-27
SG11201703263PA (en) 2017-05-30
ECSP17023702A (es) 2018-03-31
EP3213322A1 (en) 2017-09-06
CO2017004283A2 (es) 2017-07-19
IL251789A0 (en) 2017-06-29
SI3213322T1 (sl) 2019-08-30
RS58874B1 (sr) 2019-08-30
GT201700088A (es) 2019-08-12
GEAP201814481A (en) 2018-12-10
EA034250B1 (ru) 2020-01-21
EP3213322B1 (en) 2019-04-03
SV2017005431A (es) 2017-06-07
KR20170078663A (ko) 2017-07-07
AU2015340622B2 (en) 2021-04-01
PE20170759A1 (es) 2017-07-04
MX364405B (es) 2019-04-24
ZA201702647B (en) 2018-08-29
CN107112020B (zh) 2021-01-22
WO2016066705A1 (en) 2016-05-06
MY190174A (en) 2022-03-31
CA2965731C (en) 2023-12-05
ME03453B (me) 2020-01-20
CN107112020A (zh) 2017-08-29
UY36378A (es) 2016-06-01
GEP20196960B (en) 2019-03-25
NZ731194A (en) 2020-11-27
HUE044368T2 (hu) 2019-10-28
HK1243547B (en) 2019-11-29
PH12017500723A1 (en) 2017-10-09
SA517381440B1 (ar) 2020-05-23
TW201629951A (zh) 2016-08-16
TN2017000143A1 (en) 2018-10-19
US20170332185A1 (en) 2017-11-16
EA201790753A1 (ru) 2017-12-29
PT3213322T (pt) 2019-07-05
UA123388C2 (uk) 2021-03-31

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