Invention Grant
- Patent Title: Apparatus for encoding or decoding an encoded multichannel signal using a filling signal generated by a broad band filter
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Application No.: US17543819Application Date: 2021-12-07
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Publication No.: US11790922B2Publication Date: 2023-10-17
- Inventor: Jan Büthe , Franz Reutelhuber , Sascha Disch , Guillaume Fuchs , Markus Multrus , Ralf Geiger
- Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
- Applicant Address: DE Munich
- Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
- Current Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
- Current Assignee Address: DE Munich
- Agency: McClure, Qualey & Rodack, LLP
- Priority: EP 183841 2017.07.28
- The original application number of the division: US16738301 2020.01.09
- Main IPC: G10L19/008
- IPC: G10L19/008 ; G10L19/02 ; G10L19/26
Abstract:
An apparatus for decoding an encoded multichannel signal includes: a base channel decoder for decoding an encoded base channel to obtain a decoded base channel; a decorrelation filter for filtering at least a portion of the decoded base channel to obtain a filling signal; and a multichannel processor for performing a multichannel processing using a spectral representation of the decoded base channel and a spectral representation of the filling signal, wherein the decorrelation filter is a broad band filter and the multichannel processor is configured to apply a narrow band processing to the spectral representation of the decoded base channel and the spectral representation of the filling signal.
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