[go: up one dir, main page]

MX2018003703A - Metodo y sistema que utiliza una diferencia de correlacion a largo plazo entre canales izquierdo y derecho para la mezcla descendente del dominio de tiempo a una señal sonora estereo en canales primario y secundario. - Google Patents

Metodo y sistema que utiliza una diferencia de correlacion a largo plazo entre canales izquierdo y derecho para la mezcla descendente del dominio de tiempo a una señal sonora estereo en canales primario y secundario.

Info

Publication number
MX2018003703A
MX2018003703A MX2018003703A MX2018003703A MX2018003703A MX 2018003703 A MX2018003703 A MX 2018003703A MX 2018003703 A MX2018003703 A MX 2018003703A MX 2018003703 A MX2018003703 A MX 2018003703A MX 2018003703 A MX2018003703 A MX 2018003703A
Authority
MX
Mexico
Prior art keywords
primary
channels
long
sound signal
stereo sound
Prior art date
Application number
MX2018003703A
Other languages
English (en)
Other versions
MX383266B (es
Inventor
Jelinek Milan
Vaillancourt Tommy
Original Assignee
Voiceage Corp
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 Voiceage Corp filed Critical Voiceage Corp
Publication of MX2018003703A publication Critical patent/MX2018003703A/es
Publication of MX383266B publication Critical patent/MX383266B/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
    • 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
    • G10L19/002—Dynamic bit allocation
    • 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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • 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
    • G10L19/04—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 predictive techniques
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • 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
    • G10L19/04—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 predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/09—Long term prediction, i.e. removing periodical redundancies, e.g. by using adaptive codebook or pitch predictor
    • 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
    • G10L19/04—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 predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
    • 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
    • G10L19/04—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 predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • 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
    • G10L19/04—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 predictive techniques
    • G10L19/26—Pre-filtering or post-filtering
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/06—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being correlation coefficients
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/21—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being power information
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
    • G10L25/51—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for comparison or discrimination
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • 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 
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

Un método y un sistema de codificación de señal de sonido estéreo para mezclar de forma descendente el dominio de tiempo de los canales derecho e izquierdo de una señal de sonido estéreo de entrada en canales primarios y secundarios determinar las correlaciones normalizadas del canal izquierdo y del canal derecho en relación con una versión de señal monofónica del sonido. Se determina una diferencia de correlación a largo plazo sobre la base de la correlación normalizada del canal izquierdo y la correlación normalizada del canal derecho. La diferencia de correlación a largo plazo se convierte en un factor ß, y los canales izquierdo y derecho se mezclan para producir los canales primario y secundario utilizando el factor ß, donde el factor ß determina las contribuciones respectivas de los canales izquierdo y derecho al producirse los canales primarios y secundarios.
MX2018003703A 2015-09-25 2016-09-22 Metodo y sistema que utiliza una diferencia de correlacion a largo plazo entre canales izquierdo y derecho para la mezcla descendente del dominio de tiempo a una señal sonora estereo en canales primario y secundario. MX383266B (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201562232589P 2015-09-25 2015-09-25
US201662362360P 2016-07-14 2016-07-14
PCT/CA2016/051106 WO2017049397A1 (en) 2015-09-25 2016-09-22 Method and system using a long-term correlation difference between left and right channels for time domain down mixing a stereo sound signal into primary and secondary channels

Publications (2)

Publication Number Publication Date
MX2018003703A true MX2018003703A (es) 2018-04-30
MX383266B MX383266B (es) 2025-03-13

Family

ID=58385516

Family Applications (4)

Application Number Title Priority Date Filing Date
MX2018003242A MX382211B (es) 2015-09-25 2016-09-22 Metodo y sistema para codificar una señal de sonido estereo utilizando los parametros de codificacion de un canal primario para codificar un canal secundario.
MX2021006677A MX2021006677A (es) 2015-09-25 2016-09-22 Método y sistema que utiliza una diferencia de correlación a largo plazo entre canales izquierdo y derecho para la mezcla descendente del dominio de tiempo a una señal sonora estéreo en canales primario y secundario.
MX2021005090A MX2021005090A (es) 2015-09-25 2016-09-22 Método y sistema para codificar una señal de sonido estéreo utilizando los parámetros de codificación de un canal primario para codificar un canal secundario.
MX2018003703A MX383266B (es) 2015-09-25 2016-09-22 Metodo y sistema que utiliza una diferencia de correlacion a largo plazo entre canales izquierdo y derecho para la mezcla descendente del dominio de tiempo a una señal sonora estereo en canales primario y secundario.

Family Applications Before (3)

Application Number Title Priority Date Filing Date
MX2018003242A MX382211B (es) 2015-09-25 2016-09-22 Metodo y sistema para codificar una señal de sonido estereo utilizando los parametros de codificacion de un canal primario para codificar un canal secundario.
MX2021006677A MX2021006677A (es) 2015-09-25 2016-09-22 Método y sistema que utiliza una diferencia de correlación a largo plazo entre canales izquierdo y derecho para la mezcla descendente del dominio de tiempo a una señal sonora estéreo en canales primario y secundario.
MX2021005090A MX2021005090A (es) 2015-09-25 2016-09-22 Método y sistema para codificar una señal de sonido estéreo utilizando los parámetros de codificación de un canal primario para codificar un canal secundario.

Country Status (16)

Country Link
US (8) US10522157B2 (es)
EP (8) EP3353780B1 (es)
JP (6) JP6887995B2 (es)
KR (3) KR102677745B1 (es)
CN (4) CN116343802A (es)
AU (1) AU2016325879B2 (es)
CA (4) CA2997331C (es)
DK (1) DK3353779T3 (es)
ES (4) ES2949991T3 (es)
MX (4) MX382211B (es)
MY (2) MY186661A (es)
PL (1) PL3353779T3 (es)
PT (1) PT3353779T (es)
RU (6) RU2728535C2 (es)
WO (5) WO2017049396A1 (es)
ZA (2) ZA201801675B (es)

Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017049396A1 (en) 2015-09-25 2017-03-30 Voiceage Corporation Method and system for time domain down mixing a stereo sound signal into primary and secondary channels using detecting an out-of-phase condition of the left and right channels
US12125492B2 (en) 2015-09-25 2024-10-22 Voiceage Coproration Method and system for decoding left and right channels of a stereo sound signal
CN107742521B (zh) * 2016-08-10 2021-08-13 华为技术有限公司 多声道信号的编码方法和编码器
CN117351965A (zh) * 2016-09-28 2024-01-05 华为技术有限公司 一种处理多声道音频信号的方法、装置和系统
PL3539127T3 (pl) * 2016-11-08 2021-04-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Moduł downmixu i sposób downmixu co najmniej dwóch kanałów oraz koder wielokanałowy i dekoder wielokanałowy
CN108269577B (zh) * 2016-12-30 2019-10-22 华为技术有限公司 立体声编码方法及立体声编码器
WO2018189414A1 (en) * 2017-04-10 2018-10-18 Nokia Technologies Oy Audio coding
EP3396670B1 (en) * 2017-04-28 2020-11-25 Nxp B.V. Speech signal processing
US10224045B2 (en) 2017-05-11 2019-03-05 Qualcomm Incorporated Stereo parameters for stereo decoding
CN109300480B (zh) * 2017-07-25 2020-10-16 华为技术有限公司 立体声信号的编解码方法和编解码装置
CN113782039A (zh) * 2017-08-10 2021-12-10 华为技术有限公司 时域立体声编解码方法和相关产品
CN117198302A (zh) * 2017-08-10 2023-12-08 华为技术有限公司 时域立体声参数的编码方法和相关产品
CN109389987B (zh) * 2017-08-10 2022-05-10 华为技术有限公司 音频编解码模式确定方法和相关产品
CN114005455A (zh) * 2017-08-10 2022-02-01 华为技术有限公司 时域立体声编解码方法和相关产品
CN109427338B (zh) * 2017-08-23 2021-03-30 华为技术有限公司 立体声信号的编码方法和编码装置
CN109427337B (zh) * 2017-08-23 2021-03-30 华为技术有限公司 立体声信号编码时重建信号的方法和装置
US10891960B2 (en) * 2017-09-11 2021-01-12 Qualcomm Incorproated Temporal offset estimation
ES3019398T3 (en) 2017-09-20 2025-05-20 Voiceage Corp Method and device for efficiently distributing a bit-budget in a celp codec
CN109859766B (zh) * 2017-11-30 2021-08-20 华为技术有限公司 音频编解码方法和相关产品
CN110556119B (zh) * 2018-05-31 2022-02-18 华为技术有限公司 一种下混信号的计算方法及装置
CN110556117B (zh) 2018-05-31 2022-04-22 华为技术有限公司 立体声信号的编码方法和装置
CN110556118B (zh) 2018-05-31 2022-05-10 华为技术有限公司 立体声信号的编码方法和装置
CN115132214A (zh) * 2018-06-29 2022-09-30 华为技术有限公司 立体声信号的编码、解码方法、编码装置和解码装置
CN115831130A (zh) 2018-06-29 2023-03-21 华为技术有限公司 立体声信号的编码方法、解码方法、编码装置和解码装置
WO2020185522A1 (en) * 2019-03-14 2020-09-17 Boomcloud 360, Inc. Spatially aware multiband compression system with priority
EP3719799A1 (en) * 2019-04-04 2020-10-07 FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V. A multi-channel audio encoder, decoder, methods and computer program for switching between a parametric multi-channel operation and an individual channel operation
CN111988726A (zh) * 2019-05-06 2020-11-24 深圳市三诺数字科技有限公司 一种立体声合成单声道的方法和系统
BR112021020507A2 (pt) 2019-05-07 2021-12-07 Voiceage Corp Métodos e dispositivos para detectar um ataque em um sinal de som a ser codificado e para codificar o ataque detectado
CN112233682B (zh) * 2019-06-29 2024-07-16 华为技术有限公司 一种立体声编码方法、立体声解码方法和装置
CN112151045B (zh) * 2019-06-29 2024-06-04 华为技术有限公司 一种立体声编码方法、立体声解码方法和装置
CN114175151A (zh) * 2019-08-01 2022-03-11 杜比实验室特许公司 Ivas比特流的编码和解码
CN110534120B (zh) * 2019-08-31 2021-10-01 深圳市友恺通信技术有限公司 一种移动网络环境下的环绕声误码修复方法
CN110809225B (zh) * 2019-09-30 2021-11-23 歌尔股份有限公司 一种应用于立体声系统的自动校准喇叭的方法
US10856082B1 (en) * 2019-10-09 2020-12-01 Echowell Electronic Co., Ltd. Audio system with sound-field-type nature sound effect
EP4100948B1 (en) 2020-02-03 2025-02-19 VoiceAge Corporation Switching between stereo coding modes in a multichannel sound codec
US12100403B2 (en) * 2020-03-09 2024-09-24 Nippon Telegraph And Telephone Corporation Sound signal downmixing method, sound signal coding method, sound signal downmixing apparatus, sound signal coding apparatus, program and recording medium
JP7380837B2 (ja) * 2020-03-09 2023-11-15 日本電信電話株式会社 音信号符号化方法、音信号復号方法、音信号符号化装置、音信号復号装置、プログラム及び記録媒体
WO2021181746A1 (ja) * 2020-03-09 2021-09-16 日本電信電話株式会社 音信号ダウンミックス方法、音信号符号化方法、音信号ダウンミックス装置、音信号符号化装置、プログラム及び記録媒体
CN115244618B (zh) * 2020-03-09 2025-04-15 日本电信电话株式会社 声音信号编码方法、声音信号解码方法、声音信号编码装置、声音信号解码装置、程序产品以及记录介质
WO2021207825A1 (en) 2020-04-16 2021-10-21 Voiceage Corporation Method and device for speech/music classification and core encoder selection in a sound codec
CN113571073A (zh) * 2020-04-28 2021-10-29 华为技术有限公司 一种线性预测编码参数的编码方法和编码装置
CN111599381A (zh) * 2020-05-29 2020-08-28 广州繁星互娱信息科技有限公司 音频数据处理方法、装置、设备及计算机存储介质
CN111885414B (zh) * 2020-07-24 2023-03-21 腾讯科技（深圳）有限公司 一种数据处理方法、装置、设备及可读存储介质
KR20230066056A (ko) * 2020-09-09 2023-05-12 보이세지 코포레이션 사운드 코덱에 있어서 비상관 스테레오 콘텐츠의 분류, 크로스-토크 검출 및 스테레오 모드 선택을 위한 방법 및 디바이스
EP4243015A4 (en) 2021-01-27 2024-04-17 Samsung Electronics Co., Ltd. AUDIO PROCESSING APPARATUS AND METHOD
CN112767956B (zh) * 2021-04-09 2021-07-16 腾讯科技（深圳）有限公司 音频编码方法、装置、计算机设备及介质
US20250022474A1 (en) * 2021-11-26 2025-01-16 Beijing Xiaomi Mobile Software Co., Ltd. Stereo audio signal processing method, communication apparatus, and storage medium
WO2024142358A1 (ja) * 2022-12-28 2024-07-04 日本電信電話株式会社 音信号処理装置、音信号処理方法、プログラム
WO2024142357A1 (ja) * 2022-12-28 2024-07-04 日本電信電話株式会社 音信号処理装置、音信号処理方法、プログラム
WO2024142360A1 (ja) * 2022-12-28 2024-07-04 日本電信電話株式会社 音信号処理装置、音信号処理方法、プログラム

Family Cites Families (69)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01231523A (ja) * 1988-03-11 1989-09-14 Fujitsu Ltd ステレオ信号符号化装置
JPH02124597A (ja) * 1988-11-02 1990-05-11 Yamaha Corp 複数チャンネルの信号圧縮方法
US6330533B2 (en) * 1998-08-24 2001-12-11 Conexant Systems, Inc. Speech encoder adaptively applying pitch preprocessing with warping of target signal
SE519552C2 (sv) * 1998-09-30 2003-03-11 Ericsson Telefon Ab L M Flerkanalig signalkodning och -avkodning
EP1054575A3 (en) 1999-05-17 2002-09-18 Bose Corporation Directional decoding
US6397175B1 (en) * 1999-07-19 2002-05-28 Qualcomm Incorporated Method and apparatus for subsampling phase spectrum information
SE519976C2 (sv) * 2000-09-15 2003-05-06 Ericsson Telefon Ab L M Kodning och avkodning av signaler från flera kanaler
SE519981C2 (sv) * 2000-09-15 2003-05-06 Ericsson Telefon Ab L M Kodning och avkodning av signaler från flera kanaler
JP4805540B2 (ja) * 2002-04-10 2011-11-02 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ ステレオ信号の符号化
JP2004325633A (ja) * 2003-04-23 2004-11-18 Matsushita Electric Ind Co Ltd 信号符号化方法、信号符号化プログラム及びその記録媒体
SE527670C2 (sv) 2003-12-19 2006-05-09 Ericsson Telefon Ab L M Naturtrogenhetsoptimerad kodning med variabel ramlängd
JP2005202248A (ja) 2004-01-16 2005-07-28 Fujitsu Ltd オーディオ符号化装置およびオーディオ符号化装置のフレーム領域割り当て回路
DE102004009954B4 (de) * 2004-03-01 2005-12-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Verarbeiten eines Multikanalsignals
US7668712B2 (en) * 2004-03-31 2010-02-23 Microsoft Corporation Audio encoding and decoding with intra frames and adaptive forward error correction
SE0400998D0 (sv) * 2004-04-16 2004-04-16 Cooding Technologies Sweden Ab Method for representing multi-channel audio signals
US7283634B2 (en) 2004-08-31 2007-10-16 Dts, Inc. Method of mixing audio channels using correlated outputs
US7630902B2 (en) * 2004-09-17 2009-12-08 Digital Rise Technology Co., Ltd. Apparatus and methods for digital audio coding using codebook application ranges
CN101027718A (zh) * 2004-09-28 2007-08-29 松下电器产业株式会社 可扩展性编码装置以及可扩展性编码方法
WO2006059567A1 (ja) * 2004-11-30 2006-06-08 Matsushita Electric Industrial Co., Ltd. ステレオ符号化装置、ステレオ復号装置、およびこれらの方法
EP1691348A1 (en) * 2005-02-14 2006-08-16 Ecole Polytechnique Federale De Lausanne Parametric joint-coding of audio sources
US7573912B2 (en) 2005-02-22 2009-08-11 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschunng E.V. Near-transparent or transparent multi-channel encoder/decoder scheme
CN101124740B (zh) * 2005-02-23 2012-05-30 艾利森电话股份有限公司 多声道音频信号编码和解码的方法和装置和音频传送系统
US9626973B2 (en) * 2005-02-23 2017-04-18 Telefonaktiebolaget L M Ericsson (Publ) Adaptive bit allocation for multi-channel audio encoding
US7751572B2 (en) * 2005-04-15 2010-07-06 Dolby International Ab Adaptive residual audio coding
US8227369B2 (en) 2005-05-25 2012-07-24 Celanese International Corp. Layered composition and processes for preparing and using the composition
CN101180675A (zh) * 2005-05-25 2008-05-14 皇家飞利浦电子股份有限公司 多通道信号的预测编码
RU2414741C2 (ru) * 2005-07-29 2011-03-20 ЭлДжи ЭЛЕКТРОНИКС ИНК. Способ создания многоканального сигнала
JP5171256B2 (ja) * 2005-08-31 2013-03-27 パナソニック株式会社 ステレオ符号化装置、ステレオ復号装置、及びステレオ符号化方法
US7974713B2 (en) * 2005-10-12 2011-07-05 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Temporal and spatial shaping of multi-channel audio signals
EP1952392B1 (en) * 2005-10-20 2016-07-20 LG Electronics Inc. Method, apparatus and computer-readable recording medium for decoding a multi-channel audio signal
KR100888474B1 (ko) 2005-11-21 2009-03-12 삼성전자주식회사 멀티채널 오디오 신호의 부호화/복호화 장치 및 방법
JP2007183528A (ja) 2005-12-06 2007-07-19 Fujitsu Ltd 符号化装置、符号化方法、および符号化プログラム
BRPI0707969B1 (pt) 2006-02-21 2020-01-21 Koninklijke Philips Electonics N V codificador de áudio, decodificador de áudio, método de codificação de áudio, receptor para receber um sinal de áudio, transmissor, método para transmitir um fluxo de dados de saída de áudio, e produto de programa de computador
EP2000001B1 (en) * 2006-03-28 2011-12-21 Telefonaktiebolaget LM Ericsson (publ) Method and arrangement for a decoder for multi-channel surround sound
UA94117C2 (ru) 2006-10-16 2011-04-11 Долби Свиден Ав Усовершенстованное кодирование и отображение параметров многоканального кодирования микшированных объектов
WO2008132826A1 (ja) * 2007-04-20 2008-11-06 Panasonic Corporation ステレオ音声符号化装置およびステレオ音声符号化方法
US8046214B2 (en) * 2007-06-22 2011-10-25 Microsoft Corporation Low complexity decoder for complex transform coding of multi-channel sound
US8218775B2 (en) * 2007-09-19 2012-07-10 Telefonaktiebolaget L M Ericsson (Publ) Joint enhancement of multi-channel audio
GB2453117B (en) * 2007-09-25 2012-05-23 Motorola Mobility Inc Apparatus and method for encoding a multi channel audio signal
US8280744B2 (en) * 2007-10-17 2012-10-02 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio decoder, audio object encoder, method for decoding a multi-audio-object signal, multi-audio-object encoding method, and non-transitory computer-readable medium therefor
KR101505831B1 (ko) 2007-10-30 2015-03-26 삼성전자주식회사 멀티 채널 신호의 부호화/복호화 방법 및 장치
US8103005B2 (en) 2008-02-04 2012-01-24 Creative Technology Ltd Primary-ambient decomposition of stereo audio signals using a complex similarity index
CN101981616A (zh) 2008-04-04 2011-02-23 松下电器产业株式会社 立体声信号变换装置、立体声信号逆变换装置及其方法
EP2144230A1 (en) * 2008-07-11 2010-01-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Low bitrate audio encoding/decoding scheme having cascaded switches
WO2010040522A2 (en) 2008-10-08 2010-04-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. Multi-resolution switched audio encoding/decoding scheme
WO2010084756A1 (ja) * 2009-01-22 2010-07-29 パナソニック株式会社 ステレオ音響信号符号化装置、ステレオ音響信号復号装置およびそれらの方法
WO2010091555A1 (zh) * 2009-02-13 2010-08-19 华为技术有限公司 一种立体声编码方法和装置
WO2010097748A1 (en) 2009-02-27 2010-09-02 Koninklijke Philips Electronics N.V. Parametric stereo encoding and decoding
CN101826326B (zh) * 2009-03-04 2012-04-04 华为技术有限公司 一种立体声编码方法、装置和编码器
WO2010105926A2 (en) * 2009-03-17 2010-09-23 Dolby International Ab Advanced stereo coding based on a combination of adaptively selectable left/right or mid/side stereo coding and of parametric stereo coding
US8666752B2 (en) 2009-03-18 2014-03-04 Samsung Electronics Co., Ltd. Apparatus and method for encoding and decoding multi-channel signal
PL2491556T3 (pl) * 2009-10-20 2024-08-26 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Dekoder sygnału audio, odpowiadający mu sposób oraz program komputerowy
KR101710113B1 (ko) * 2009-10-23 2017-02-27 삼성전자주식회사 위상 정보와 잔여 신호를 이용한 부호화／복호화 장치 및 방법
EP2323130A1 (en) * 2009-11-12 2011-05-18 Koninklijke Philips Electronics N.V. Parametric encoding and decoding
WO2011073600A1 (fr) * 2009-12-18 2011-06-23 France Telecom Codage/decodage parametrique stereo avec optimisation du traitement de reduction des canaux
CA3105050C (en) * 2010-04-09 2021-08-31 Dolby International Ab Audio upmixer operable in prediction or non-prediction mode
US8463414B2 (en) * 2010-08-09 2013-06-11 Motorola Mobility Llc Method and apparatus for estimating a parameter for low bit rate stereo transmission
FR2966634A1 (fr) * 2010-10-22 2012-04-27 France Telecom Codage/decodage parametrique stereo ameliore pour les canaux en opposition de phase
HRP20240863T1 (hr) * 2010-10-25 2024-10-11 Voiceage Evs Llc Kodiranje generičkih audio signala pri niskim bitskim brzinama i malim kašnjenjem
WO2012058805A1 (en) * 2010-11-03 2012-05-10 Huawei Technologies Co., Ltd. Parametric encoder for encoding a multi-channel audio signal
KR101621287B1 (ko) * 2012-04-05 2016-05-16 후아웨이 테크놀러지 컴퍼니 리미티드 다채널 오디오 신호 및 다채널 오디오 인코더를 위한 인코딩 파라미터를 결정하는 방법
ES2560402T3 (es) 2012-04-05 2016-02-18 Huawei Technologies Co., Ltd Método para la codificación y la decodificación de audio espacial paramétrica, codificador de audio espacial paramétrico y decodificador de audio espacial paramétrico
US9479886B2 (en) * 2012-07-20 2016-10-25 Qualcomm Incorporated Scalable downmix design with feedback for object-based surround codec
WO2014126689A1 (en) * 2013-02-14 2014-08-21 Dolby Laboratories Licensing Corporation Methods for controlling the inter-channel coherence of upmixed audio signals
TWI774136B (zh) * 2013-09-12 2022-08-11 瑞典商杜比國際公司 多聲道音訊系統中之解碼方法、解碼裝置、包含用於執行解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、包含解碼裝置的音訊系統
TWI557724B (zh) * 2013-09-27 2016-11-11 杜比實驗室特許公司 用於將 n 聲道音頻節目編碼之方法、用於恢復 n 聲道音頻節目的 m 個聲道之方法、被配置成將 n 聲道音頻節目編碼之音頻編碼器及被配置成執行 n 聲道音頻節目的恢復之解碼器
KR102215124B1 (ko) * 2013-12-23 2021-02-10 주식회사 윌러스표준기술연구소 오디오 신호의 필터 생성 방법 및 이를 위한 파라메터화 장치
CN106463125B (zh) * 2014-04-25 2020-09-15 杜比实验室特许公司 基于空间元数据的音频分割
WO2017049396A1 (en) 2015-09-25 2017-03-30 Voiceage Corporation Method and system for time domain down mixing a stereo sound signal into primary and secondary channels using detecting an out-of-phase condition of the left and right channels

Also Published As

Publication number Publication date
RU2020124137A3 (es) 2021-11-12
CA2997334A1 (en) 2017-03-30
CN108352162B (zh) 2023-05-09
CN108352162A (zh) 2018-07-31
JP7140817B2 (ja) 2022-09-21
KR102677745B1 (ko) 2024-06-25
CA2997332A1 (en) 2017-03-30
CA2997296C (en) 2023-12-05
WO2017049399A1 (en) 2017-03-30
JP7244609B2 (ja) 2023-03-22
EP3353778B1 (en) 2023-07-05
AU2016325879B2 (en) 2021-07-08
US20180277126A1 (en) 2018-09-27
HK1259477A1 (en) 2019-11-29
ES2949991T3 (es) 2023-10-04
JP6976934B2 (ja) 2021-12-08
US10325606B2 (en) 2019-06-18
EP3961623A1 (en) 2022-03-02
EP3353784B1 (en) 2025-03-05
DK3353779T3 (da) 2020-08-10
ES2809677T3 (es) 2021-03-05
AU2016325879A1 (en) 2018-04-05
RU2018114901A3 (es) 2020-03-10
CN108352164B (zh) 2022-12-06
MY186661A (en) 2021-08-04
EP3353779A1 (en) 2018-08-01
JP6804528B2 (ja) 2020-12-23
RU2728535C2 (ru) 2020-07-30
PT3353779T (pt) 2020-07-31
EP3353779B1 (en) 2020-06-24
RU2018114899A (ru) 2019-10-25
MX2021005090A (es) 2023-01-04
US10319385B2 (en) 2019-06-11
US20180261231A1 (en) 2018-09-13
US10573327B2 (en) 2020-02-25
EP3353780A4 (en) 2019-05-22
RU2020125468A (ru) 2020-09-24
EP3353779A4 (en) 2019-08-07
WO2017049400A1 (en) 2017-03-30
US11056121B2 (en) 2021-07-06
WO2017049397A1 (en) 2017-03-30
KR102636424B1 (ko) 2024-02-15
RU2765565C2 (ru) 2022-02-01
CN108352164A (zh) 2018-07-31
EP3961623B1 (en) 2025-11-19
EP3353777A1 (en) 2018-08-01
RU2020125468A3 (es) 2021-11-26
EP3353784A4 (en) 2019-05-22
CA2997331A1 (en) 2017-03-30
US20180268826A1 (en) 2018-09-20
US20190228784A1 (en) 2019-07-25
US20180286415A1 (en) 2018-10-04
US20190237087A1 (en) 2019-08-01
RU2730548C2 (ru) 2020-08-24
EP4235659A2 (en) 2023-08-30
JP2021131569A (ja) 2021-09-09
RU2763374C2 (ru) 2021-12-28
CA2997296A1 (en) 2017-03-30
EP3353777A4 (en) 2019-05-15
WO2017049398A1 (en) 2017-03-30
CN108352163B (zh) 2023-02-21
RU2018114898A (ru) 2019-10-25
EP4235659A3 (en) 2023-09-06
KR20180056662A (ko) 2018-05-29
US10522157B2 (en) 2019-12-31
RU2018114898A3 (es) 2020-02-11
US20180233154A1 (en) 2018-08-16
EP3353778A4 (en) 2019-05-08
HK1257684A1 (en) 2019-10-25
JP2018533057A (ja) 2018-11-08
WO2017049396A1 (en) 2017-03-30
MX2018003242A (es) 2018-09-26
EP3353784A1 (en) 2018-08-01
EP3353777B1 (en) 2023-06-21
RU2729603C2 (ru) 2020-08-11
RU2018114901A (ru) 2019-10-28
JP7124170B2 (ja) 2022-08-23
EP3699909A1 (en) 2020-08-26
EP3353784C0 (en) 2025-03-05
ZA201801675B (en) 2020-09-30
MY188370A (en) 2021-12-06
ES2904275T3 (es) 2022-04-04
EP3353778A1 (en) 2018-08-01
RU2764287C1 (ru) 2022-01-17
CA2997331C (en) 2023-12-05
JP2018533056A (ja) 2018-11-08
JP2022028765A (ja) 2022-02-16
EP3353780B1 (en) 2021-12-01
MX382211B (es) 2025-03-13
HK1253569A1 (zh) 2019-06-21
JP2018533058A (ja) 2018-11-08
CA2997513A1 (en) 2017-03-30
US10839813B2 (en) 2020-11-17
MX383266B (es) 2025-03-13
RU2020124137A (ru) 2020-09-04
EP3353780A1 (en) 2018-08-01
CN108352163A (zh) 2018-07-31
EP3699909B1 (en) 2025-11-19
ES2955962T3 (es) 2023-12-11
EP3353777B8 (en) 2023-08-23
KR20180059781A (ko) 2018-06-05
CN116343802A (zh) 2023-06-27
KR20180056661A (ko) 2018-05-29
MX2021006677A (es) 2023-03-01
ZA202003500B (en) 2022-06-29
US20190228785A1 (en) 2019-07-25
JP2021047431A (ja) 2021-03-25
KR102636396B1 (ko) 2024-02-15
PL3353779T3 (pl) 2020-11-16
JP6887995B2 (ja) 2021-06-16
US10339940B2 (en) 2019-07-02
HK1253570A1 (zh) 2019-06-21
RU2018114899A3 (es) 2020-02-25
US10984806B2 (en) 2021-04-20

Similar Documents

Publication Publication Date Title
MX2018003703A (es) Metodo y sistema que utiliza una diferencia de correlacion a largo plazo entre canales izquierdo y derecho para la mezcla descendente del dominio de tiempo a una señal sonora estereo en canales primario y secundario.
MX2019005147A (es) Aparato y metodo para codificar o decodificar una se?al multicanal usando una ganancia lateral y una ganancia residual.
UA115804C2 (uk) Сигналізація зміни наборів рівнів виведення
CL2018001287A1 (es) Seguimiento principal para sistema de salida binaural parametrico y procedimiento.
AR107617A1 (es) Aparato y método para llenado estéreo en codificación multicanal
AR092540A1 (es) Aparato y metodo para proveer funciones mejoradas de mezcla guiada para audio 3d
CL2018000788A1 (es) Diseño de señales de sincronización para operación de banda estrecha
MX352014B (es) Dispositivo de transmisión de señales de difusión, dispositivo de recepción de señales de difusión, método de transmisión de señales de difusión, y método de recepción de señales de difusión.
MX2019011862A (es) Aparato para proporcionar servicios de comunicacion y metodos del mismo.
MX2016000851A (es) Aparato y metodo para codificacion mejorada de objetos de audio espacial.
AR109758A1 (es) Sistemas y métodos para configurar brechas de medición y conmutación de señales de sonido de referencia
MX352134B (es) Generación de audio binaural en respuesta a audio multicanal utilizando al menos una red de retardo realimentada.
MX367202B (es) Nodo b mejorado, equipo de usuario y método para seleccionar señales de detección de células en redes de evolución a largo plazo.
AR096987A1 (es) Mezcla ascendente espacial controlada por renderizador
MX2022010190A (es) Metodo de recepcion de informacion, metodo de envio de informacion y dispositivos.
GT201700088A (es) Mezcla paramétrica de señales de audio
CO2020014515A2 (es) Anticuerpos anti-tmeff2 monoespecíficos y multiespecíficos y sus usos
MX2015014189A (es) Aparato y metodo para escalado de señales centrales y mejora estereofonica basada en relacion señal a mezcla a dos canales.
CY1122723T1 (el) Μεθοδος μονοσημαντης και σαφους εξαγωγης κλειδιων απο ενα καναλι διαδοσης
MX2018014288A (es) Método para transmisión de señal, dispositivo de red y dispositivo de terminal.
MX2019001586A (es) Equipo de usuario, estacion base y metodos relacionados.
CO2019002095A2 (es) Identificación y aislamiento del progenitor ótico humano
BR112016024887A2 (pt) fornecimento de informações de localização para expressões
CO2019003969A2 (es) Evitar colisiones entre los canales de control de enlace descendente y las señales de referencia - información estado de canal aperiódicas
MX2016006108A (es) Utilizacion de canal de radio.