US 12,462,819 B2
Apparatus and method for encoding or decoding a multi-channel signal
Sascha Dick, Nuremberg (DE); Florian Schuh, Zirndorf (DE); Nikolaus Rettelbach, Nuremberg (DE); Tobias Schwegler, Nuremberg (DE); Richard Fueg, Nuremberg (DE); Johannes Hilpert, Nuremberg (DE); and Matthias Neusinger, Rohr (DE)
Assigned to Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Munich (DE)
Filed by Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Munich (DE)
Filed on Mar. 29, 2024, as Appl. No. 18/622,507.
Application 18/622,507 is a continuation of application No. 17/968,583, filed on Oct. 18, 2022, granted, now 11,955,131.
Application 17/968,583 is a continuation of application No. 16/995,537, filed on Aug. 17, 2020, granted, now 11,508,384, issued on Nov. 22, 2022.
Application 16/995,537 is a continuation of application No. 16/413,299, filed on May 15, 2019, granted, now 10,762,909, issued on Sep. 1, 2020.
Application 16/413,299 is a continuation of application No. 15/696,861, filed on Sep. 6, 2017, granted, now 10,388,289, issued on Aug. 20, 2019.
Application 15/696,861 is a continuation of application No. PCT/EP2016/054900, filed on Mar. 8, 2016.
Claims priority of application No. 15158234 (EP), filed on Mar. 9, 2015; and application No. 15172492 (EP), filed on Jun. 17, 2015.
Prior Publication US 2024/0249732 A1, Jul. 25, 2024
Int. Cl. G10L 19/008 (2013.01); G10L 19/02 (2013.01); H04S 3/00 (2006.01)
CPC G10L 19/008 (2013.01) [G10L 19/02 (2013.01); H04S 3/008 (2013.01); H04S 2400/01 (2013.01)] 5 Claims
OG exemplary drawing
 
1. Apparatus for decoding an encoded multi-channel signal comprising encoded channels and at least first and second multichannel parameters, comprising:
a channel decoder for decoding the encoded channels to acquire decoded channels; and
a multichannel processor for performing a multichannel processing using a second pair of the decoded channels identified by the second multichannel parameters and using the second multichannel parameters to acquire processed channels, and for performing a further multichannel processing using a first pair of channels identified by the first multichannel parameters and using the first multichannel parameters, wherein the first pair of channels comprises at least one processed channel,
wherein the multichannel processing and the further multichannel processing comprise a stereo processing using a stereo parameter, wherein for individual scale factor bands or groups of scale factor bands of the decoded channels, a first stereo parameter is comprised by the first multichannel parameter and a second stereo parameter is comprised by the second multichannel parameter; and
wherein the first stereo parameter comprises a rotation angle, wherein the second stereo parameter comprises a prediction coefficient, or vice versa.