EP 3977447 A1 20220406 - OMNI-DIRECTIONAL ENCODING AND DECODING FOR AMBISONICS
Title (en)
OMNI-DIRECTIONAL ENCODING AND DECODING FOR AMBISONICS
Title (de)
OMNIDIREKTIONALE CODIERUNG UND DECODIERUNG FÜR AMBISONICS
Title (fr)
CODAGE ET DÉCODAGE OMNIDIRECTIONNELS POUR AMBIOPHONIE
Publication
Application
Priority
- US 201962855202 P 20190531
- US 2020035270 W 20200529
Abstract (en)
[origin: WO2020243535A1] Systems and methods discussed herein are directed to ambisonic signal processing. In an example, a primary ambisonic signal can be encoded with an imbalance in its panning equations or components. The imbalance can be due to an intentionally-encoded omnidirectional or middle-channel signal such as can be intended for rendering using other than an active ambisonic decoder. In an example, a method for decomposing the primary ambisonic signal can include determining a secondary ambisonic signal for passive decoding using information about a difference between the total energy of X, Y, and Z components and the total energy of the W component of the primary ambisonic signal.
IPC 8 full level
G10L 19/008 (2013.01); H04S 3/00 (2006.01); H04S 3/02 (2006.01)
CPC (source: EP KR)
G10L 19/008 (2013.01 - EP KR); H04S 3/008 (2013.01 - KR); H04S 3/02 (2013.01 - KR); H04S 7/30 (2013.01 - EP KR); H04S 3/008 (2013.01 - EP); H04S 3/02 (2013.01 - EP); H04S 2420/11 (2013.01 - EP KR)
Citation (search report)
See references of WO 2020243535A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2020243535 A1 20201203; EP 3977447 A1 20220406; KR 20220027891 A 20220308
DOCDB simple family (application)
US 2020035270 W 20200529; EP 20746393 A 20200529; KR 20217043424 A 20200529