Processing

Please wait...

Settings

Settings

Goto Application

1. WO2020089509 - DETERMINATION OF SPATIAL AUDIO PARAMETER ENCODING AND ASSOCIATED DECODING

Publication Number WO/2020/089509
Publication Date 07.05.2020
International Application No. PCT/FI2019/050703
International Filing Date 01.10.2019
IPC
H04S 3/00 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
SSTEREOPHONIC SYSTEMS
3Systems employing more than two channels, e.g. quadraphonic
H04S 7/00 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
SSTEREOPHONIC SYSTEMS
7Indicating arrangements; Control arrangements, e.g. balance control
G10L 19/038 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
02using spectral analysis, e.g. transform vocoders or subband vocoders
032Quantisation or dequantisation of spectral components
038Vector quantisation, e.g. TwinVQ audio
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
G10L 19/24 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
24Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
G06T 17/20 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
173D modelling for computer graphics
20Wire-frame description, e.g. polygonalisation or tessellation
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 19/0204
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
02using spectral analysis, e.g. transform vocoders or subband vocoders
0204using subband decomposition
H04S 2400/11
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
SSTEREOPHONIC SYSTEMS 
2400Details of stereophonic systems covered by H04S but not provided for in its groups
11Positioning of individual sound objects, e.g. moving airplane, within a sound field
Applicants
  • NOKIA TECHNOLOGIES OY [FI]/[FI]
Inventors
  • VASILACHE, Adriana
  • JÄRVINEN, Kari
  • LEPPÄNEN, Jussi
  • PIHLAJAKUJA, Tapani
Agents
  • NOKIA TECHNOLOGIES OY
  • UUSITALO, Arttu
Priority Data
1817809.531.10.2018GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DETERMINATION OF SPATIAL AUDIO PARAMETER ENCODING AND ASSOCIATED DECODING
(FR) DÉTERMINATION DE CODAGE ET DE DÉCODAGE ASSOCIÉ DE PARAMÈTRE AUDIO SPATIAL
Abstract
(EN)
An apparatus comprising means for receiving values for sub-bands of a frame, the values comprising at least one directional value for each sub-band, each directional value comprising an azimuth value and an elevation value;identifying a primary partition section based on a primary partitioning of a range of the at least one directional value and the at least one directional value; determining a primary index value associated with the identified primary partition section; identifying at least one further partition section based on at least one further partitioning of the primary partition section; determining at least one further index value associated with the identified further partition section; combining the primary index value and the at least one further index value to generate an embedded index value associated with the at least one directional value.
(FR)
L'invention concerne un appareil comprenant des moyens destinés à recevoir des valeurs de sous-bandes d'une trame, les valeurs comprenant au moins une valeur directionnelle de chaque sous-bande, chaque valeur directionnelle comprenant une valeur d'azimut et une valeur d'élévation ; à identifier une section de partition primaire sur la base d'un partitionnement primaire d'une plage de ladite valeur directionnelle et de ladite valeur directionnelle ; à déterminer une valeur d'index primaire associée à la section de partition primaire identifiée ; à identifier au moins une autre section de partition sur la base d'au moins un autre partitionnement de la section de partition primaire ; à déterminer au moins une autre valeur d'index associée à l'autre section de partition identifiée ; à combiner la valeur d'index primaire et ladite autre valeur d'index pour générer une valeur d'index intégrée associée à ladite valeur directionnelle.
Latest bibliographic data on file with the International Bureau