Patent · US Active

Apparatus, method and computer program for avoiding clipping artefacts

US9633663B2 · kind B2 · utility

53Cited by

4References

28Claims

0Family size

Assignee

Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

Albert Heuberger · Erlangen, DE
Bernd Edler · Hannover, DE
Nikolaus Rettelbach · Nuremberg, DE
Stefan Geyersberger · Erlangen, DE
Johannes Hilpert · Nuremberg, DE

Key dates

Filing date	Jun 13, 2014
Grant date	Apr 25, 2017
Priority date	—
Expiry date	Feb 3, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG10L25/69
WIPO fieldComputer technology
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.