US 11,990,146 B2
Apparatus and audio signal processor, for providing processed audio signal representation, audio decoder, methods and computer programs
Stefan Bayer, Erlangen (DE); Pallavi Maben, Erlangen (DE); Emmanuel Ravelli, Erlangen (DE); Guillaume Fuchs, Erlangen (DE); Eleni Fotopoulou, Erlangen (DE); and Markus Multrus, Erlangen (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 May 4, 2021, as Appl. No. 17/307,739.
Application 17/307,739 is a continuation of application No. PCT/EP2019/080285, filed on Nov. 5, 2019.
Claims priority of application No. 18204445 (EP), filed on Nov. 5, 2018; and application No. PCT/EP2019/063693 (WO), filed on May 27, 2019.
Prior Publication US 2021/0256982 A1, Aug. 19, 2021
Int. Cl. G10L 19/022 (2013.01)
CPC G10L 19/022 (2013.01) 42 Claims
OG exemplary drawing
 
1. An apparatus for providing a processed speech/music audio signal representation on the basis of input audio signal representation,
wherein the apparatus is configured to apply an un-windowing, in order to provide the processed audio signal representation on the basis of the input audio signal representation, wherein the apparatus is configured to adapt the un-windowing in dependence on one or more signal characteristics and/or in dependence on one or more processing parameters used for a provision of the input audio signal representation; and
wherein the un-windowing at least partially reverses an analysis windowing used for a provision of the input audio signal representation;
wherein the un-windowing is configured to provide a given processing unit of the processed audio signal representation before a subsequent processing unit, which at least partially temporally overlaps the given processing unit, is available,
wherein the apparatus is configured to adapt the un-windowing in dependence on a DC component of the input audio signal representation, and
wherein the apparatus for providing the processed audio signal representation on the basis of the input audio signal representation is implemented using a hardware apparatus, or using a computer, or using a combination of a hardware apparatus and a computer.