EP3577649A4 - Stereo audio signal encoder - Google Patents

Stereo audio signal encoder Download PDF

Info

Publication number
EP3577649A4
EP3577649A4 EP18747600.7A EP18747600A EP3577649A4 EP 3577649 A4 EP3577649 A4 EP 3577649A4 EP 18747600 A EP18747600 A EP 18747600A EP 3577649 A4 EP3577649 A4 EP 3577649A4
Authority
EP
European Patent Office
Prior art keywords
audio signal
stereo audio
signal encoder
encoder
stereo
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.)
Granted
Application number
EP18747600.7A
Other languages
German (de)
French (fr)
Other versions
EP3577649A1 (en
EP3577649B1 (en
Inventor
Adriana Vasilache
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.)
Nokia Technologies Oy
Original Assignee
Nokia Technologies Oy
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 Nokia Technologies Oy filed Critical Nokia Technologies Oy
Publication of EP3577649A1 publication Critical patent/EP3577649A1/en
Publication of EP3577649A4 publication Critical patent/EP3577649A4/en
Application granted granted Critical
Publication of EP3577649B1 publication Critical patent/EP3577649B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/035—Scalar quantisation
EP18747600.7A 2017-01-31 2018-01-11 Stereo audio signal encoder Active EP3577649B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1701594.2A GB2559199A (en) 2017-01-31 2017-01-31 Stereo audio signal encoder
PCT/FI2018/050018 WO2018142018A1 (en) 2017-01-31 2018-01-11 Stereo audio signal encoder

Publications (3)

Publication Number Publication Date
EP3577649A1 EP3577649A1 (en) 2019-12-11
EP3577649A4 true EP3577649A4 (en) 2020-11-11
EP3577649B1 EP3577649B1 (en) 2023-05-10

Family

ID=58462846

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18747600.7A Active EP3577649B1 (en) 2017-01-31 2018-01-11 Stereo audio signal encoder

Country Status (4)

Country Link
EP (1) EP3577649B1 (en)
ES (1) ES2946235T3 (en)
GB (1) GB2559199A (en)
WO (1) WO2018142018A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2017357454B2 (en) * 2016-11-08 2021-02-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for downmixing or upmixing a multichannel signal using phase compensation
GB2580899A (en) * 2019-01-22 2020-08-05 Nokia Technologies Oy Audio representation and associated rendering

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050015249A1 (en) * 2002-09-04 2005-01-20 Microsoft Corporation Entropy coding by adapting coding between level and run-length/level modes
WO2014013294A1 (en) * 2012-07-19 2014-01-23 Nokia Corporation Stereo audio signal encoder
US20150194160A1 (en) * 2008-07-11 2015-07-09 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder and audio decoder
US20160027445A1 (en) * 2012-05-29 2016-01-28 Nokia Corporation Stereo audio signal encoder

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050021484A (en) * 2002-07-16 2005-03-07 코닌클리케 필립스 일렉트로닉스 엔.브이. Audio coding
EP2862167B1 (en) * 2012-06-14 2018-08-29 Telefonaktiebolaget LM Ericsson (publ) Method and arrangement for scalable low-complexity audio coding
EP3014609B1 (en) * 2013-06-27 2017-09-27 Dolby Laboratories Licensing Corporation Bitstream syntax for spatial voice coding
TWI579831B (en) * 2013-09-12 2017-04-21 杜比國際公司 Method for quantization of parameters, method for dequantization of quantized parameters and computer-readable medium, audio encoder, audio decoder and audio system thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050015249A1 (en) * 2002-09-04 2005-01-20 Microsoft Corporation Entropy coding by adapting coding between level and run-length/level modes
US20150194160A1 (en) * 2008-07-11 2015-07-09 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder and audio decoder
US20160027445A1 (en) * 2012-05-29 2016-01-28 Nokia Corporation Stereo audio signal encoder
WO2014013294A1 (en) * 2012-07-19 2014-01-23 Nokia Corporation Stereo audio signal encoder

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2018142018A1 *

Also Published As

Publication number Publication date
WO2018142018A1 (en) 2018-08-09
EP3577649A1 (en) 2019-12-11
GB201701594D0 (en) 2017-03-15
GB2559199A (en) 2018-08-01
EP3577649B1 (en) 2023-05-10
ES2946235T3 (en) 2023-07-14

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