- Patent Title: Apparatus, method and computer program for generating a representation of a bandwidth-extended signal on the basis of an input signal representation using a combination of a harmonic bandwidth-extension and a non-harmonic bandwidth-extension
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Application No.: US16712903Application Date: 2019-12-12
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Publication No.: US10909994B2Publication Date: 2021-02-02
- Inventor: Frederik Nagel , Max Neuendorf , Nikolaus Rettelbach , Jérémie Lecomte , Markus Multrus , Bernhard Grill , Sascha Disch
- 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: EP09181008 20091230
- Main IPC: G10L19/008
- IPC: G10L19/008 ; G10L19/18 ; G10L21/038 ; G10L19/02
Abstract:
An apparatus for generating a representation of a bandwidth-extended signal on the basis of an input signal representation includes a phase vocoder configured to obtain values of a spectral domain representation of a first patch of the bandwidth-extended signal on the basis of the input signal representation. The apparatus also includes a value copier configured to copy a set of values of the spectral domain representation of the first patch, which values are provided by the phase vocoder, to obtain a set of values of a spectral domain representation of a second patch, wherein the second patch is associated with higher frequencies than the first patch. The apparatus is configured to obtain the representation of the bandwidth-extended signal using the values of the spectral domain representation of the first patch and the values of the spectral domain representation of the second patch.
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