EP3766262A4 - Temporal spatial audio parameter smoothing - Google Patents

Temporal spatial audio parameter smoothing Download PDF

Info

Publication number
EP3766262A4
EP3766262A4 EP19767481.5A EP19767481A EP3766262A4 EP 3766262 A4 EP3766262 A4 EP 3766262A4 EP 19767481 A EP19767481 A EP 19767481A EP 3766262 A4 EP3766262 A4 EP 3766262A4
Authority
EP
European Patent Office
Prior art keywords
spatial audio
audio parameter
temporal spatial
parameter smoothing
smoothing
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
EP19767481.5A
Other languages
German (de)
French (fr)
Other versions
EP3766262A1 (en
EP3766262B1 (en
Inventor
Mikko-Ville Laitinen
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 EP3766262A1 publication Critical patent/EP3766262A1/en
Publication of EP3766262A4 publication Critical patent/EP3766262A4/en
Application granted granted Critical
Publication of EP3766262B1 publication Critical patent/EP3766262B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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 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
    • G10L19/02—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
    • 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
    • G10L19/26—Pre-filtering or post-filtering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H04S1/007—Two-channel systems in which the audio signals are in digital form
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field
    • H04S7/302—Electronic adaptation of stereophonic sound system to listener position or orientation
    • H04S7/303—Tracking of listener position or orientation
    • H04S7/304—For headphones
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0012—Smoothing of parameters of the decoder interpolation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/03—Aspects of down-mixing multi-channel audio to configurations with lower numbers of playback channels, e.g. 7.1 -> 5.1
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/11—Positioning of individual sound objects, e.g. moving airplane, within a sound field
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/15—Aspects of sound capture and related signal processing for recording or reproduction
    • 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
    • H04S2420/03—Application of parametric coding in stereophonic audio systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Stereophonic System (AREA)
  • Circuit For Audible Band Transducer (AREA)
EP19767481.5A 2018-03-13 2019-03-07 Spatial audio parameter smoothing Active EP3766262B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1803993.3A GB2571949A (en) 2018-03-13 2018-03-13 Temporal spatial audio parameter smoothing
PCT/FI2019/050178 WO2019175472A1 (en) 2018-03-13 2019-03-07 Temporal spatial audio parameter smoothing

Publications (3)

Publication Number Publication Date
EP3766262A1 EP3766262A1 (en) 2021-01-20
EP3766262A4 true EP3766262A4 (en) 2021-11-10
EP3766262B1 EP3766262B1 (en) 2022-11-23

Family

ID=61972940

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19767481.5A Active EP3766262B1 (en) 2018-03-13 2019-03-07 Spatial audio parameter smoothing

Country Status (3)

Country Link
EP (1) EP3766262B1 (en)
GB (1) GB2571949A (en)
WO (1) WO2019175472A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3761672B1 (en) 2019-07-02 2023-04-05 Dolby International AB Using metadata to aggregate signal processing operations
GB2593419A (en) * 2019-10-11 2021-09-29 Nokia Technologies Oy Spatial audio representation and rendering
TW202123220A (en) * 2019-10-30 2021-06-16 美商杜拜研究特許公司 Multichannel audio encode and decode using directional metadata
EP4226367A2 (en) * 2020-10-09 2023-08-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus, method, or computer program for processing an encoded audio scene using a parameter smoothing
EP4178231A1 (en) * 2021-11-09 2023-05-10 Nokia Technologies Oy Spatial audio reproduction by positioning at least part of a sound field

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7983922B2 (en) * 2005-04-15 2011-07-19 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating multi-channel synthesizer control signal and apparatus and method for multi-channel synthesizing
US8295494B2 (en) 2007-08-13 2012-10-23 Lg Electronics Inc. Enhancing audio with remixing capability
AU2012279349B2 (en) * 2011-07-01 2016-02-18 Dolby Laboratories Licensing Corporation System and tools for enhanced 3D audio authoring and rendering
WO2013181272A2 (en) 2012-05-31 2013-12-05 Dts Llc Object-based audio system using vector base amplitude panning
DE102012017296B4 (en) * 2012-08-31 2014-07-03 Hamburg Innovation Gmbh Generation of multichannel sound from stereo audio signals
EP2982139A4 (en) 2013-04-04 2016-11-23 Nokia Technologies Oy Visual audio processing apparatus
JP6187131B2 (en) 2013-10-17 2017-08-30 ヤマハ株式会社 Sound image localization device
EP2942981A1 (en) 2014-05-05 2015-11-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. System, apparatus and method for consistent acoustic scene reproduction based on adaptive functions
CN105336335B (en) * 2014-07-25 2020-12-08 杜比实验室特许公司 Audio object extraction with sub-band object probability estimation
US10045145B2 (en) * 2015-12-18 2018-08-07 Qualcomm Incorporated Temporal offset estimation
WO2018213159A1 (en) * 2017-05-15 2018-11-22 Dolby Laboratories Licensing Corporation Methods, systems and apparatus for conversion of spatial audio format(s) to speaker signals

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *

Also Published As

Publication number Publication date
WO2019175472A1 (en) 2019-09-19
EP3766262A1 (en) 2021-01-20
EP3766262B1 (en) 2022-11-23
GB2571949A (en) 2019-09-18
GB201803993D0 (en) 2018-04-25

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