Invention Grant
- Patent Title: Apparatus, method and computer program for avoiding clipping artefacts
-
Application No.: US14304682Application Date: 2014-06-13
-
Publication No.: US09633663B2Publication Date: 2017-04-25
- Inventor: Albert Heuberger , Bernd Edler , Nikolaus Rettelbach , Stefan Geyersberger , Johannes Hilpert
- Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
- Applicant Address: DE Munich
- Assignee: Fraunhofer-Gesellschaft zur Foederung der angewandten Forschung e.V.
- Current Assignee: Fraunhofer-Gesellschaft zur Foederung der angewandten Forschung e.V.
- Current Assignee Address: DE Munich
- Agency: Perkins Coie LLP
- Agent Michael A. Glenn
- Main IPC: G10L21/00
- IPC: G10L21/00 ; G10L19/008 ; G10L25/69 ; G10L19/032 ; G10L15/00 ; G10L13/00 ; H03G3/00 ; H04L27/08 ; H04B15/00 ; G06F11/00 ; H04R25/00 ; G06F17/00 ; H03G9/00

Abstract:
An audio encoding apparatus includes an encoder for encoding a time segment of an input audio signal to be encoded to obtain a corresponding encoded signal segment. The audio encoding apparatus further includes a decoder for decoding the encoded signal segment to obtain a re-decoded signal segment. A clipping detector is provided for analyzing the re-decoded signal segment with respect to at least one of an actual signal clipping or an perceptible signal clipping and for generating a corresponding clipping alert. The encoder is further configured to again encode the time segment of the audio signal with at least one modified encoding parameter resulting in a reduced clipping probability in response to the clipping alert.
Public/Granted literature
- US20140297293A1 APPARATUS, METHOD AND COMPUTER PROGRAM FOR AVOIDING CLIPPING ARTEFACTS Public/Granted day:2014-10-02
Information query