JP7485037B2 - 音信号復号方法、音信号復号装置、プログラム及び記録媒体 - Google Patents

音信号復号方法、音信号復号装置、プログラム及び記録媒体 Download PDF

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JP7485037B2
JP7485037B2 JP2022531302A JP2022531302A JP7485037B2 JP 7485037 B2 JP7485037 B2 JP 7485037B2 JP 2022531302 A JP2022531302 A JP 2022531302A JP 2022531302 A JP2022531302 A JP 2022531302A JP 7485037 B2 JP7485037 B2 JP 7485037B2
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signal
decoded
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JPWO2021260826A5 (https=
JPWO2021260826A1 (https=
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健弘 守谷
亮介 杉浦
優 鎌本
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NTT Inc
NTT Inc USA
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Nippon Telegraph and Telephone Corp
NTT Inc USA
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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
    • G10L19/04—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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H04M3/568—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities audio processing specific to telephonic conferencing, e.g. spatial distribution, mixing of participants

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (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)
  • Stereophonic System (AREA)
  • Telephonic Communication Services (AREA)
JP2022531302A 2020-06-24 2020-06-24 音信号復号方法、音信号復号装置、プログラム及び記録媒体 Active JP7485037B2 (ja)

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PCT/JP2020/024775 WO2021260826A1 (ja) 2020-06-24 2020-06-24 音信号復号方法、音信号復号装置、プログラム及び記録媒体

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JPWO2021260826A1 JPWO2021260826A1 (https=) 2021-12-30
JPWO2021260826A5 JPWO2021260826A5 (https=) 2023-02-07
JP7485037B2 true JP7485037B2 (ja) 2024-05-16

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US (1) US12586591B2 (https=)
EP (1) EP4175269B1 (https=)
JP (1) JP7485037B2 (https=)
CN (1) CN115917643B (https=)
WO (1) WO2021260826A1 (https=)

Families Citing this family (1)

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WO2022176270A1 (ja) * 2021-02-16 2022-08-25 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、復号装置、符号化方法、及び、復号方法

Citations (1)

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KR101505831B1 (ko) * 2007-10-30 2015-03-26 삼성전자주식회사 멀티 채널 신호의 부호화/복호화 방법 및 장치
US8359196B2 (en) * 2007-12-28 2013-01-22 Panasonic Corporation Stereo sound decoding apparatus, stereo sound encoding apparatus and lost-frame compensating method
US8332229B2 (en) * 2008-12-30 2012-12-11 Stmicroelectronics Asia Pacific Pte. Ltd. Low complexity MPEG encoding for surround sound recordings
KR101698439B1 (ko) 2010-04-09 2017-01-20 돌비 인터네셔널 에이비 Mdct-기반의 복소수 예측 스테레오 코딩
EP2849180B1 (en) * 2012-05-11 2020-01-01 Panasonic Corporation Hybrid audio signal encoder, hybrid audio signal decoder, method for encoding audio signal, and method for decoding audio signal
KR101629661B1 (ko) * 2012-08-29 2016-06-13 니폰 덴신 덴와 가부시끼가이샤 복호 방법, 복호 장치, 프로그램 및 그 기록매체
WO2014128197A1 (en) * 2013-02-20 2014-08-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for encoding or decoding an audio signal using a transient-location dependent overlap
EP2981960B1 (en) * 2013-04-05 2019-03-13 Dolby International AB Stereo audio encoder and decoder
US20140355769A1 (en) * 2013-05-29 2014-12-04 Qualcomm Incorporated Energy preservation for decomposed representations of a sound field
EP2830051A3 (en) * 2013-07-22 2015-03-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder, audio decoder, methods and computer program using jointly encoded residual signals
EP3067886A1 (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
RU2704733C1 (ru) * 2016-01-22 2019-10-30 Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. Устройство и способ кодирования или декодирования многоканального сигнала с использованием параметра широкополосного выравнивания и множества параметров узкополосного выравнивания
FR3048808A1 (fr) * 2016-03-10 2017-09-15 Orange Codage et decodage optimise d'informations de spatialisation pour le codage et le decodage parametrique d'un signal audio multicanal
JP6790251B2 (ja) * 2016-09-28 2020-11-25 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． マルチチャネルオーディオ信号処理方法、装置、およびシステム
CN108122534B (zh) * 2016-11-29 2019-03-26 昆山国显光电有限公司 一种驱动控制电路及其驱动方法、显示装置
GB2574239A (en) * 2018-05-31 2019-12-04 Nokia Technologies Oy Signalling of spatial audio parameters

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Also Published As

Publication number Publication date
US20230298598A1 (en) 2023-09-21
CN115917643A (zh) 2023-04-04
CN115917643B (zh) 2025-05-02
EP4175269A1 (en) 2023-05-03
EP4175269A4 (en) 2024-03-13
US12586591B2 (en) 2026-03-24
EP4175269B1 (en) 2025-02-26
JPWO2021260826A1 (https=) 2021-12-30
WO2021260826A1 (ja) 2021-12-30

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