KR20240137613A - 낮은 레이턴시 몰입형 오디오 코덱을 위한 고차 앰비소닉스의 공간적 코딩 - Google Patents

낮은 레이턴시 몰입형 오디오 코덱을 위한 고차 앰비소닉스의 공간적 코딩 Download PDF

Info

Publication number
KR20240137613A
KR20240137613A KR1020247027359A KR20247027359A KR20240137613A KR 20240137613 A KR20240137613 A KR 20240137613A KR 1020247027359 A KR1020247027359 A KR 1020247027359A KR 20247027359 A KR20247027359 A KR 20247027359A KR 20240137613 A KR20240137613 A KR 20240137613A
Authority
KR
South Korea
Prior art keywords
channels
ambisonics
spar
hoa
audio signal
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
KR1020247027359A
Other languages
English (en)
Korean (ko)
Inventor
스테파니 브라운
스테판 브룬
리샤브 티아기
Original Assignee
돌비 레버러토리즈 라이쎈싱 코오포레이션
돌비 인터네셔널 에이비
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 돌비 레버러토리즈 라이쎈싱 코오포레이션, 돌비 인터네셔널 에이비 filed Critical 돌비 레버러토리즈 라이쎈싱 코오포레이션
Publication of KR20240137613A publication Critical patent/KR20240137613A/ko
Pending legal-status Critical Current

Links

Images

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
    • G10L19/0204—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 using subband decomposition
    • 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
    • G10L19/025—Detection of transients or attacks for time/frequency resolution switching
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/008—Systems 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
    • 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
    • H04S2420/11—Application of ambisonics in stereophonic audio systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Stereophonic System (AREA)
KR1020247027359A 2022-01-20 2023-01-09 낮은 레이턴시 몰입형 오디오 코덱을 위한 고차 앰비소닉스의 공간적 코딩 Pending KR20240137613A (ko)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US202263301152P 2022-01-20 2022-01-20
US63/301,152 2022-01-20
US202263394586P 2022-08-02 2022-08-02
US63/394,586 2022-08-02
US202263476518P 2022-12-21 2022-12-21
US63/476,518 2022-12-21
PCT/US2023/010415 WO2023141034A1 (en) 2022-01-20 2023-01-09 Spatial coding of higher order ambisonics for a low latency immersive audio codec

Publications (1)

Publication Number Publication Date
KR20240137613A true KR20240137613A (ko) 2024-09-20

Family

ID=85199285

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020247027359A Pending KR20240137613A (ko) 2022-01-20 2023-01-09 낮은 레이턴시 몰입형 오디오 코덱을 위한 고차 앰비소닉스의 공간적 코딩

Country Status (7)

Country Link
US (1) US20250095660A1 (https=)
EP (2) EP4716258A3 (https=)
JP (1) JP2025504862A (https=)
KR (1) KR20240137613A (https=)
ES (1) ES3059272T3 (https=)
TW (1) TW202336739A (https=)
WO (1) WO2023141034A1 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20250078845A1 (en) * 2023-08-29 2025-03-06 Samsung Electronics Co., Ltd. Lossless audio coding for multichannel hierarchical reconstruction
WO2025081393A1 (zh) * 2023-10-18 2025-04-24 北京小米移动软件有限公司 音频信号的处理方法、装置、音频设备及存储介质

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL319278A (en) * 2018-07-02 2025-04-01 Dolby Laboratories Licensing Corp Methods and devices for generating or decoding a bit sequence comprising embedded audio signals
MX2022005146A (es) * 2019-10-30 2022-05-30 Dolby Laboratories Licensing Corp Distribucion de tasa de bits en servicios inmersivos de voz y audio.
EP4738346A1 (en) * 2020-12-02 2026-05-06 Dolby International AB Immersive voice and audio services (ivas) with adaptive downmix strategies

Also Published As

Publication number Publication date
JP2025504862A (ja) 2025-02-19
US20250095660A1 (en) 2025-03-20
ES3059272T3 (en) 2026-03-19
EP4466697B1 (en) 2025-12-03
EP4716258A3 (en) 2026-04-01
EP4466697A1 (en) 2024-11-27
WO2023141034A1 (en) 2023-07-27
TW202336739A (zh) 2023-09-16
EP4716258A2 (en) 2026-03-25

Similar Documents

Publication Publication Date Title
JP7842798B2 (ja) パケット損失補償装置およびパケット損失補償方法、ならびに音声処理システム
US12469504B2 (en) Truncateable predictive coding
AU2007208482B2 (en) Complex-transform channel coding with extended-band frequency coding
US8046214B2 (en) Low complexity decoder for complex transform coding of multi-channel sound
KR101278805B1 (ko) 엔트로피 코딩 방법 및 엔트로피 디코딩 방법
JP7831938B2 (ja) 低遅延オーディオ・コーデックのためのパラメータの量子化およびエントロピー符号化
TW201316327A (zh) 用以重塑經合成輸出音訊信號之時域包絡以更接近輸入音訊信號之時域包絡的方法
KR20240137613A (ko) 낮은 레이턴시 몰입형 오디오 코덱을 위한 고차 앰비소닉스의 공간적 코딩
KR20220043246A (ko) 시간-도메인 스테레오 코딩 및 디코딩 방법, 및 관련 제품
EP2697795A1 (en) Adaptive gain-shape rate sharing
US9287895B2 (en) Method and decoder for reconstructing a source signal
KR102377434B1 (ko) 시간-도메인 스테레오 파라미터에 대한 코딩 방법, 및 관련 제품
HK40115398A (zh) 用於低延迟沉浸式音频编解码器的高阶高保真度立体声响复制的空间编码
CN118871986A (zh) 用于低延迟沉浸式音频编解码器的高阶高保真度立体声响复制的空间编码
RU2838373C1 (ru) Квантование и энтропийное кодирование параметров для аудиокодека с низкой задержкой

Legal Events

Date Code Title Description
PA0105 International application

St.27 status event code: A-0-1-A10-A15-nap-PA0105

PG1501 Laying open of application

St.27 status event code: A-1-1-Q10-Q12-nap-PG1501

P11 Amendment of application requested

Free format text: ST27 STATUS EVENT CODE: A-2-2-P10-P11-NAP-X000 (AS PROVIDED BY THE NATIONAL OFFICE)

P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000