CN115244619B - 声音信号的编码解码方法、装置、程序产品以及记录介质 - Google Patents

声音信号的编码解码方法、装置、程序产品以及记录介质 Download PDF

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Publication number
CN115244619B
CN115244619B CN202080098217.4A CN202080098217A CN115244619B CN 115244619 B CN115244619 B CN 115244619B CN 202080098217 A CN202080098217 A CN 202080098217A CN 115244619 B CN115244619 B CN 115244619B
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signal
value
channel
left channel
subtraction gain
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CN115244619A (zh
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杉浦亮介
守谷健弘
镰本优
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NTT Inc
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Nippon Telegraph and Telephone Corp
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    • 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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Stereophonic System (AREA)
CN202080098217.4A 2020-03-09 2020-03-09 声音信号的编码解码方法、装置、程序产品以及记录介质 Active CN115244619B (zh)

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Application Number Priority Date Filing Date Title
PCT/JP2020/010080 WO2021181472A1 (ja) 2020-03-09 2020-03-09 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

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CN115244619A CN115244619A (zh) 2022-10-25
CN115244619B true CN115244619B (zh) 2025-04-15

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US (1) US12170091B2 (enExample)
EP (1) EP4120249B1 (enExample)
JP (1) JP7380837B2 (enExample)
CN (1) CN115244619B (enExample)
WO (1) WO2021181472A1 (enExample)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20250126424A1 (en) * 2021-09-01 2025-04-17 Nippon Telegraph And Telephone Corporation Sound signal downmix method, sound signal coding method, sound signal downmix apparatus, sound signal coding apparatus, program

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2137725B1 (en) 2007-04-26 2014-01-08 Dolby International AB Apparatus and method for synthesizing an output signal
MX2010012580A (es) 2008-05-23 2010-12-20 Koninkl Philips Electronics Nv Aparato de mezcla ascendente estereo parametrico, decodificador estereo parametrico, aparato de mezcla descendente estereo parametrico, codificador estereo parametrico.
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
EP2439736A1 (en) * 2009-06-02 2012-04-11 Panasonic Corporation Down-mixing device, encoder, and method therefor
JP6061121B2 (ja) * 2011-07-01 2017-01-18 ソニー株式会社 オーディオ符号化装置、オーディオ符号化方法、およびプログラム
CN103971692A (zh) * 2013-01-28 2014-08-06 北京三星通信技术研究有限公司 音频处理方法、装置及系统
RU2677597C2 (ru) * 2013-10-09 2019-01-17 Сони Корпорейшн Способ и устройство кодирования, способ и устройство декодирования и программа
ES2949991T3 (es) * 2015-09-25 2023-10-04 Voiceage Corp Método y sistema para la mezcla en el dominio del tiempo de una señal de sonido estéreo en canales primario y secundario mediante el uso de la detección de un estado de desfase de los canales izquierdo y derecho
EP3539126B1 (en) * 2016-11-08 2020-09-30 Fraunhofer Gesellschaft zur Förderung der Angewand Apparatus and method for downmixing or upmixing a multichannel signal using phase compensation
JP7149936B2 (ja) * 2017-06-01 2022-10-07 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ 符号化装置及び符号化方法

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EP4120249A1 (en) 2023-01-18
US12170091B2 (en) 2024-12-17
US20230109677A1 (en) 2023-04-13
JPWO2021181472A1 (enExample) 2021-09-16
EP4120249B1 (en) 2024-12-11
JP7380837B2 (ja) 2023-11-15
EP4120249A4 (en) 2023-11-15
WO2021181472A1 (ja) 2021-09-16
CN115244619A (zh) 2022-10-25

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