EP 2094032 A1 20090826 - Audio signal, method and apparatus for encoding or transmitting the same and method and apparatus for processing the same
Title (en)
Audio signal, method and apparatus for encoding or transmitting the same and method and apparatus for processing the same
Title (de)
Audiosignal, Verfahren und Vorrichtung zu dessen Kodierung oder Übertragung sowie Verfahren und Vorrichtung zu dessen Verarbeitung
Title (fr)
Signal audio, procédé et appareil pour coder ou transmettre celui-ci et procédé et appareil pour le traiter
Publication
Application
Priority
EP 08101732 A 20080219
Abstract (en)
Commonly used audio file formats relate directly to the audio channels, i.e. the audio information is stored like it is fed to the loudspeaker. However, for obtaining a general description of audio information, a paradigm shift is necessary. Instead of storing the loudspeaker channels, a new audio format may use the description of the spatial sound field. A method for encoding or transmitting an audio signal comprises the steps of providing one or more audio source signals (X src ), determining for each of said audio source signals a specific position to which it relates, generating data sets containing the determined positions (r src ) of the audio sources, and encoding or transmitting (62) the data sets together with said audio source signals. Advantageously, this allows conversion into Higher Order Ambisonics (HOA) format and subsequent re-conversion into conventional audio data that can be adapted to a given loudspeaker configuration.
IPC 8 full level
H04S 3/02 (2006.01)
CPC (source: EP)
G10L 19/008 (2013.01); H04S 3/002 (2013.01); H04S 2420/03 (2013.01); H04S 2420/11 (2013.01)
Citation (search report)
- [XY] US 2005141728 A1 20050630 - MOORER JAMES A [US]
- [XA] FR 2847376 A1 20040521 - FRANCE TELECOM [FR]
- [X] US 2007269063 A1 20071122 - GOODWIN MICHAEL [US], et al
- [Y] EP 1515308 A1 20050316 - NOKIA CORP [FI]
- [XA] WO 2007136187 A1 20071129 - KOREA ELECTRONICS TELECOMM [KR], et al
- [XA] DE 102005008366 A1 20060824 - FRAUNHOFER GES FORSCHUNG [DE]
- [X] EP 1416769 A1 20040506 - KOREA ELECTRONICS TELECOMM [KR]
- [XA] US 2005117753 A1 20050602 - MIURA MASAYOSHI [JP], et al
Designated contracting state (EPC)
DE FR GB
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
DOCDB simple family (application)
EP 08101732 A 20080219