Invention Grant
- Patent Title: Audio encoder, audio decoder and related methods using two-channel processing within an intelligent gap filling framework
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Application No.: US18220677Application Date: 2023-07-11
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Publication No.: US12142284B2Publication Date: 2024-11-12
- Inventor: Sascha Disch , Frederik Nagel , Ralf Geiger , Balaji Nagendran Thoshkahna , Konstantin Schmidt , Stefan Bayer , Christian Neukam , Bernd Edler , Christian Helmrich
- Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- Applicant Address: DE Munich
- Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- Current Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- Current Assignee Address: DE Munich
- Agency: Perkins Coie LLP
- Agent Michael A. Glenn
- Priority: EP13177346 20130722,EP13177348 20130722,EP13177350 20130722,EP13177353 20130722
- Main IPC: G10L19/00
- IPC: G10L19/00 ; G10L19/008 ; G10L19/02 ; G10L19/022 ; G10L19/025 ; G10L19/03 ; G10L19/032 ; G10L19/06 ; G10L21/0388 ; G10L25/06 ; G10L25/18 ; G10L25/21 ; H04S1/00
Abstract:
An apparatus for generating a decoded two-channel signal, comprising: a parametric decoder for providing parametric data for a second set of second spectral portions and a two-channel identification identifying for a second spectral portion of the second set of second spectral portions either a first two-channel representation for the second spectral portion of the second set of second spectral portions or a second two-channel representation for the second spectral portion of the second set of second spectral portions, the second two-channel representation being different from the first two-channel representation; and a frequency regenerator for regenerating the second spectral portion of the second set of second spectral portions depending on a first spectral portion of a first set of first spectral portions, the parametric data for the second spectral portion of the second set of second spectral portions and the two-channel identification for the second spectral portion of the second set of second spectral portions to acquire a regenerated second spectral portion of the second set of second spectral portions.
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