Invention Grant
- Patent Title: Concept for combined dynamic range compression and guided clipping prevention for audio devices
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Application No.: US17174269Application Date: 2021-02-11
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Publication No.: US11551703B2Publication Date: 2023-01-10
- Inventor: Fabian Kuech , Christian Uhle , Michael Kratschmer , Bernhard Neugebauer , Michael Meier , Arne Borsum
- 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: EP13189754 20131022
- Main IPC: G10L19/16
- IPC: G10L19/16 ; H03G11/00 ; G10L21/034 ; H03G9/00 ; G06F3/16 ; G10L19/018 ; G10L19/008

Abstract:
The invention provides a concept for combined dynamic range compression and guided clipping prevention for audio devices. An audio decoder for decoding an audio bitstream and a metadata bitstream related to the audio bitstream according to the concept includes an audio processing chain including a plurality of adjustment stages including a dynamic range control stage for adjusting a dynamic range of the audio output signal and a guided clipping prevention stage for preventing clipping of the audio output signal; and a metadata decoder configured to receive the metadata bitstream and to extract dynamic range control gain sequences and guided clipping prevention gain sequences from the metadata bitstream, at least a part of the dynamic range control gain sequences being supplied to the dynamic range control stage, and at least a part of the guided clipping prevention gain sequences being supplied to the guided clipping prevention stage.
Public/Granted literature
- US20210166707A1 CONCEPT FOR COMBINED DYNAMIC RANGE COMPRESSION AND GUIDED CLIPPING PREVENTION FOR AUDIO DEVICES Public/Granted day:2021-06-03
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