US 12,245,012 B2
Method and apparatus for compressing and decompressing a higher order ambisonics signal representation
Alexander Krueger, Hannover (DE); Sven Kordon, Wunstorf (DE); Johannes Boehm, Göttingen (DE); and Johann-Markus Batke, Hannover (DE)
Assigned to Dolby Laboratories Licensing Corporation, San Francisco, CA (US)
Filed by Dolby Laboratories Licensing Corporation, San Francisco, CA (US)
Filed on Oct. 16, 2023, as Appl. No. 18/487,280.
Application 16/458,526 is a division of application No. 15/927,985, filed on Mar. 21, 2018, granted, now 10,390,164, issued on Aug. 20, 2019.
Application 15/927,985 is a division of application No. 15/221,354, filed on Jul. 27, 2016, granted, now 9,980,073, issued on May 22, 2018.
Application 18/487,280 is a continuation of application No. 17/548,485, filed on Dec. 10, 2021, granted, now 11,792,591.
Application 17/548,485 is a continuation of application No. 16/458,526, filed on Jul. 1, 2019, granted, now 11,234,091, issued on Jan. 25, 2022.
Application 15/221,354 is a continuation of application No. 14/400,039, granted, now 9,454,971, issued on Sep. 27, 2016, previously published as PCT/EP2013/059363, filed on May 6, 2013.
Claims priority of application No. 12305537 (EP), filed on May 14, 2012.
Prior Publication US 2024/0147173 A1, May 2, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04S 3/00 (2006.01); G10L 19/008 (2013.01); G10L 19/20 (2013.01); H04H 20/89 (2008.01); H04S 3/02 (2006.01)
CPC H04S 3/008 (2013.01) [G10L 19/008 (2013.01); G10L 19/20 (2013.01); H04H 20/89 (2013.01); H04S 3/02 (2013.01); H04S 2420/11 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A method for decompressing a compressed Higher Order Ambisonics (HOA) signal, the method comprising:
receiving the compressed HOA signal;
receiving directional information associated with the compressed HOA signal, wherein the directional information includes information regarding a set of active directions;
decoding the compressed HOA signal to determine a decoded directional HOA signal and a decoded ambient HOA signal, wherein the decoded directional HOA signal is decoded based on the set of active directions;
performing order extension on the decoded ambient HOA signal to obtain an order extended representation of the decoded ambient HOA signal; and
recomposing a decoded HOA representation from the order extended representation of the decoded ambient HOA signal and the decoded directional HOA signal.