US 11,743,668 B2
Renderer controlled spatial upmix
Christian Ertel, Eckental (DE); Johannes Hilpert, Nuremberg (DE); Andreas Hoelzer, Erlangen (DE); Achim Kuntz, Hemhofen (DE); Jan Plogsties, Fuerth (DE); and Michael Kratschmer, Fuerth (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 Nov. 11, 2021, as Appl. No. 17/524,663.
Application 17/524,663 is a continuation of application No. 16/422,405, filed on May 24, 2019, granted, now 11,184,728.
Application 16/422,405 is a continuation of application No. 15/854,967, filed on Dec. 27, 2017, granted, now 10,341,801, issued on Jul. 2, 2019.
Application 15/854,967 is a continuation of application No. 15/004,659, filed on Jan. 22, 2016, granted, now 10,085,104, issued on Sep. 25, 2018.
Application 15/004,659 is a continuation of application No. PCT/EP2014/065037, filed on Jul. 14, 2014.
Claims priority of application No. 13177368 (EP), filed on Jul. 22, 2013; and application No. 13189285 (EP), filed on Oct. 18, 2013.
Prior Publication US 2022/0070603 A1, Mar. 3, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G10L 19/008 (2013.01); H04S 5/00 (2006.01); H04S 7/00 (2006.01)
CPC H04S 5/005 (2013.01) [G10L 19/008 (2013.01); H04S 7/308 (2013.01); H04S 5/00 (2013.01); H04S 2400/01 (2013.01); H04S 2400/03 (2013.01); H04S 2400/05 (2013.01); H04S 2420/03 (2013.01)] 15 Claims
OG exemplary drawing
 
14. A method for decoding a compressed input audio signal, the method comprising:
providing at least one core decoder comprising one or more processors for generating a processor output signal based on a processor input signal, wherein a number of output channels of the processor output signal is higher than a number of input channels of the processor input signal, wherein each of the one or more processors comprises a decorrelator and a mixer, wherein a core decoder output signal comprising a plurality of channels comprises the processor output signal, and wherein the core decoder output signal is suitable for a reference loudspeaker setup;
providing at least one format converter device configured to convert the core decoder output signal into an output audio signal, which is suitable for a target loudspeaker setup, wherein the format converter device comprises a downmixer for downmixing the core decoder output signal; and
providing a control device configured to control at least one of the one or more processors in such way that the decorrelator of the at least one of the one or more processors is controlled independently from the mixer of the at least one of the one or more processors, wherein the control device is configured to control at least one of the decorrelators of the one or more processors in such way that, depending on the target loudspeaker setup, the mixer of the processor is operational when the decorrelator of the processor is switched off.