JP6585095B2 - 圧縮ｈｏａ表現をデコードする方法および装置ならびに圧縮ｈｏａ表現をエンコードする方法および装置 - Google Patents

圧縮ｈｏａ表現をデコードする方法および装置ならびに圧縮ｈｏａ表現をエンコードする方法および装置 Download PDF

Info

Publication number
JP6585095B2
JP6585095B2 JP2016573946A JP2016573946A JP6585095B2 JP 6585095 B2 JP6585095 B2 JP 6585095B2 JP 2016573946 A JP2016573946 A JP 2016573946A JP 2016573946 A JP2016573946 A JP 2016573946A JP 6585095 B2 JP6585095 B2 JP 6585095B2
Authority
JP
Japan
Prior art keywords
subband
hoa
representation
directions
truncated
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.)
Active
Application number
JP2016573946A
Other languages
English (en)
Japanese (ja)
Other versions
JP2017523453A (ja
JP2017523453A5 (enExample
Inventor
クルーガー，アレクサンダー
コルドン，スヴェン
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dolby International AB
Original Assignee
Dolby International 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 International AB filed Critical Dolby International AB
Publication of JP2017523453A publication Critical patent/JP2017523453A/ja
Publication of JP2017523453A5 publication Critical patent/JP2017523453A5/ja
Application granted granted Critical
Publication of JP6585095B2 publication Critical patent/JP6585095B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
    • 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
    • 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
    • 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
    • G10L19/0208—Subband vocoders
    • 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
    • H04S2420/07—Synergistic effects of band splitting and sub-band processing
    • 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)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Analysis (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Algebra (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
JP2016573946A 2014-07-02 2015-07-02 圧縮ｈｏａ表現をデコードする方法および装置ならびに圧縮ｈｏａ表現をエンコードする方法および装置 Active JP6585095B2 (ja)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP14306081 2014-07-02
EP14306081.2 2014-07-02
EP14194187.2 2014-11-20
EP14194187 2014-11-20
PCT/EP2015/065089 WO2016001357A1 (en) 2014-07-02 2015-07-02 Method and apparatus for decoding a compressed hoa representation, and method and apparatus for encoding a compressed hoa representation

Publications (3)

Publication Number Publication Date
JP2017523453A JP2017523453A (ja) 2017-08-17
JP2017523453A5 JP2017523453A5 (enExample) 2018-08-09
JP6585095B2 true JP6585095B2 (ja) 2019-10-02

Family

ID=53510865

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2016573946A Active JP6585095B2 (ja) 2014-07-02 2015-07-02 圧縮ｈｏａ表現をデコードする方法および装置ならびに圧縮ｈｏａ表現をエンコードする方法および装置

Country Status (6)

Country Link
US (1) US9794714B2 (enExample)
EP (1) EP3164868A1 (enExample)
JP (1) JP6585095B2 (enExample)
KR (1) KR102433192B1 (enExample)
CN (1) CN106463132B (enExample)
WO (1) WO2016001357A1 (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017523452A (ja) * 2014-07-02 2017-08-17 ドルビー・インターナショナル・アーベー Ｈｏａ信号表現のサブバンド内の優勢な方向性信号の方向のエンコード／デコードのための方法および装置
WO2016001355A1 (en) * 2014-07-02 2016-01-07 Thomson Licensing Method and apparatus for encoding/decoding of directions of dominant directional signals within subbands of a hoa signal representation
US10893373B2 (en) 2017-05-09 2021-01-12 Dolby Laboratories Licensing Corporation Processing of a multi-channel spatial audio format input signal
CN113661538B (zh) 2019-04-12 2024-11-15 华为技术有限公司 用于获得一阶立体混响信号的设备和方法
AU2021286636A1 (en) 2020-06-11 2023-01-19 Dolby Laboratories Licensing Corporation Encoding of multi-channel audio signals comprising downmixing of a primary and two or more scaled non-primary input channels
CN115376529B (zh) * 2021-05-17 2024-10-11 华为技术有限公司 三维音频信号编码方法、装置和编码器
WO2023147864A1 (en) * 2022-02-03 2023-08-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method to transform an audio stream

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5075880A (en) * 1988-11-08 1991-12-24 Wadia Digital Corporation Method and apparatus for time domain interpolation of digital audio signals
US6125147A (en) * 1998-05-07 2000-09-26 Motorola, Inc. Method and apparatus for reducing breathing artifacts in compressed video
US6931370B1 (en) * 1999-11-02 2005-08-16 Digital Theater Systems, Inc. System and method for providing interactive audio in a multi-channel audio environment
WO2005036528A1 (en) * 2003-10-10 2005-04-21 Agency For Science, Technology And Research Method for encoding a digital signal into a scalable bitstream; method for decoding a scalable bitstream.
US7599840B2 (en) * 2005-07-15 2009-10-06 Microsoft Corporation Selectively using multiple entropy models in adaptive coding and decoding
CN101000768B (zh) * 2006-06-21 2010-12-08 北京工业大学 嵌入式语音编解码的方法及编解码器
CN101202043B (zh) * 2007-12-28 2011-06-15 清华大学 音频信号的编码方法和装置与解码方法和装置
US8908874B2 (en) * 2010-09-08 2014-12-09 Dts, Inc. Spatial audio encoding and reproduction
EP2469741A1 (en) 2010-12-21 2012-06-27 Thomson Licensing Method and apparatus for encoding and decoding successive frames of an ambisonics representation of a 2- or 3-dimensional sound field
EP2637427A1 (en) * 2012-03-06 2013-09-11 Thomson Licensing Method and apparatus for playback of a higher-order ambisonics audio signal
EP2665208A1 (en) 2012-05-14 2013-11-20 Thomson Licensing Method and apparatus for compressing and decompressing a Higher Order Ambisonics signal representation
US9288603B2 (en) * 2012-07-15 2016-03-15 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for backward-compatible audio coding
EP2738962A1 (en) * 2012-11-29 2014-06-04 Thomson Licensing Method and apparatus for determining dominant sound source directions in a higher order ambisonics representation of a sound field
EP2743922A1 (en) * 2012-12-12 2014-06-18 Thomson Licensing Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field
EP2800401A1 (en) 2013-04-29 2014-11-05 Thomson Licensing Method and Apparatus for compressing and decompressing a Higher Order Ambisonics representation
EP2824661A1 (en) 2013-07-11 2015-01-14 Thomson Licensing Method and Apparatus for generating from a coefficient domain representation of HOA signals a mixed spatial/coefficient domain representation of said HOA signals
KR101884419B1 (ko) * 2014-03-21 2018-08-02 돌비 인터네셔널 에이비 고차 앰비소닉스(hoa) 신호를 압축하는 방법, 압축된 hoa 신호를 압축 해제하는 방법, hoa 신호를 압축하기 위한 장치, 및 압축된 hoa 신호를 압축 해제하기 위한 장치
WO2016001355A1 (en) * 2014-07-02 2016-01-07 Thomson Licensing Method and apparatus for encoding/decoding of directions of dominant directional signals within subbands of a hoa signal representation

Also Published As

Publication number Publication date
JP2017523453A (ja) 2017-08-17
CN106463132B (zh) 2021-02-02
KR20170028886A (ko) 2017-03-14
KR102433192B1 (ko) 2022-08-18
EP3164868A1 (en) 2017-05-10
WO2016001357A1 (en) 2016-01-07
US9794714B2 (en) 2017-10-17
US20170164132A1 (en) 2017-06-08
CN106463132A (zh) 2017-02-22

Similar Documents

Publication Publication Date Title
JP6542269B2 (ja) 圧縮ｈｏａ表現をデコードする方法および装置ならびに圧縮ｈｏａ表現をエンコードする方法および装置
JP6585094B2 (ja) Ｈｏａ信号表現のサブバンド内の優勢な方向性信号の方向のエンコード／デコードのための方法および装置
KR102231498B1 (ko) 고차 앰비소닉스 신호 표현의 압축 및 압축 해제 방법 및 장치
US10403292B2 (en) Method and apparatus for encoding/decoding of directions of dominant directional signals within subbands of a HOA signal representation
CN106463132B (zh) 对压缩的hoa表示编码和解码的方法和装置
CN106463131B (zh) 用于对hoa信号表示的子带内的主导方向信号的方向进行编码/解码的方法和装置
HK1233040B (en) Methods and apparatuses for encoding and decoding a compressed hoa representation
HK1233038B (en) Methods and apparatuses for encoding and decoding a compressed hoa representation
HK1233040A1 (en) Method and apparatus for decoding a compressed hoa representation, and method and apparatus for encoding a compressed hoa representation
HK1233038A1 (en) Method and apparatus for decoding a compressed hoa representation, and method and apparatus for encoding a compressed hoa representation
HK1233039A1 (en) Method and apparatus for encoding/decoding of directions of dominant directional signals within subbands of a hoa signal representation
HK1233042A1 (en) Method and apparatus for encoding/decoding of directions of dominant directional signals within subbands of a hoa signal representation
HK1233039B (en) Method and apparatus for encoding/decoding of directions of dominant directional signals within subbands of a hoa signal representation

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20180626

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20180626

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20190415

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20190514

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20190807

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20190827

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20190904

R150 Certificate of patent or registration of utility model

Ref document number: 6585095

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250