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1. WO2020089523 - APPARATUS, METHODS AND COMPUTER PROGRAMS FOR ENCODING SPATIAL METADATA

Publication Number WO/2020/089523
Publication Date 07.05.2020
International Application No. PCT/FI2019/050766
International Filing Date 28.10.2019
IPC
G10L 19/22 2013.01
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
19Speech or audio signal 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
04using predictive techniques
16Vocoder architecture
18Vocoders using multiple modes
22Mode decision, i.e. based on audio signal content versus external parameters
G10L 19/008 2013.01
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
19Speech or audio signal 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
008Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
H03M 7/30 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
MCODING, DECODING OR CODE CONVERSION, IN GENERAL
7Conversion of a code where information is represented by a given sequence or number of digits to a code where the same information is represented by a different sequence or number of digits
30Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
H04B 1/66 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
66for reducing bandwidth of signals; for improving efficiency of transmission
H04N 21/23 2011.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
23Processing of content or additional data; Elementary server operations; Server middleware
H03M 7/00 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
MCODING, DECODING OR CODE CONVERSION, IN GENERAL
7Conversion of a code where information is represented by a given sequence or number of digits to a code where the same information is represented by a different sequence or number of digits
CPC
G10L 19/008
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
19Speech 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
008Multichannel audio signal coding or decoding, i.e. using interchannel correlation to reduce redundancies, e.g. joint-stereo, intensity-coding, matrixing
G10L 2019/001
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
19Speech 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
0001Codebooks
0007Codebook element generation
001Interpolation of codebook vectors
Applicants
  • NOKIA TECHNOLOGIES OY [FI]/[FI]
Inventors
  • PIHLAJAKUJA, Tapani
  • LAAKSONEN, Lasse
  • ERONEN, Antti
  • LEHTINIEMI, Arto
Agents
  • NOKIA TECHNOLOGIES OY
  • UUSITALO, Arttu
Priority Data
1817887.101.11.2018GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) APPARATUS, METHODS AND COMPUTER PROGRAMS FOR ENCODING SPATIAL METADATA
(FR) APPAREIL, PROCÉDÉS ET PROGRAMMES INFORMATIQUES POUR CODER DES MÉTADONNÉES SPATIALES
Abstract
(EN)
Examples of the disclosure relate to apparatus, methods and computer programs for encoding spatial metadata. The example apparatus comprise means for obtaining spatial metadata associated with spatial audio content and obtaining a configuration parameter indicative of a source format of the spatial audio content. The means of the apparatus are also configured to use the configuration parameter to select a method of compression of the spatial metadata associated with the spatial audio content.
(FR)
Des exemples de l'invention concernent un appareil, des procédés et des programmes informatiques pour coder des métadonnées spatiales. L'appareil donné à titre d'exemple comprend des moyens pour obtenir des métadonnées spatiales associées à un contenu audio spatial et obtenir un paramètre de configuration indicatif d'un format source du contenu audio spatial. Les moyens de l'appareil sont également configurés pour utiliser le paramètre de configuration pour sélectionner un procédé de compression des métadonnées spatiales associées au contenu audio spatial.
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