US 11,705,139 B2
Efficient coding of audio scenes comprising audio objects
Heiko Purnhagen, Sundyberg (SE); Kristofer Kjoerling, Solna (SE); Toni Hirvonen, Stockholm (SE); Lars Villemoes, Jarfalla (SE); and Dirk Jeroen Breebaart, Pyrmont (AU)
Assigned to Dolby International AB, Dublin (IE)
Filed by DOLBY INTERNATIONAL AB, Amsterdam (NL)
Filed on Mar. 7, 2022, as Appl. No. 17/687,956.
Application 17/687,956 is a continuation of application No. 15/821,000, filed on Nov. 22, 2017, granted, now 11,270,709.
Application 15/821,000 is a continuation of application No. 14/893,512, granted, now 9,852,735, issued on Dec. 26, 2017, previously published as PCT/EP2014/060734, filed on May 23, 2014.
Claims priority of provisional application 61/827,246, filed on May 24, 2013.
Claims priority of provisional application 61/893,770, filed on Oct. 21, 2013.
Claims priority of provisional application 61/973,625, filed on Apr. 1, 2014.
Prior Publication US 2022/0189493 A1, Jun. 16, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G10L 19/008 (2013.01); H04S 3/00 (2006.01)
CPC G10L 19/008 (2013.01) [H04S 3/008 (2013.01); H04S 2400/01 (2013.01); H04S 2400/03 (2013.01); H04S 2400/13 (2013.01); H04S 2400/15 (2013.01); H04S 2420/03 (2013.01); H04S 2420/07 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method in a decoder for decoding an encoded data stream comprising:
receiving a data stream comprising frames of M signals which are combinations of N encoded audio objects, wherein the M signals are based on spatial locations of the N audio objects and on importance values of the N audio objects indicating the importance of the N audio objects in relation to each other,
receiving side information including parameters which allow reconstruction of a set of audio objects based on the N audio objects, the side information including an interpolation duration parameter that is independent of frame length; and
reconstructing the set of audio objects based on the side information, wherein the set of audio objects comprises a plurality of audio objects which are combinations of the N audio objects, and the number of which is lower than N; and
rendering the N audio objects to output channels of a predefined channel configuration, the rendering including interpolating from a current rendering setting to a desired rendering setting in accordance with the interpolation duration parameter.