Patent · US Active

Apparatus and method for improved signal fade out in different domains during error concealment

US9978378B2 · kind B2 · utility

10Cited by

28References

24Claims

0Family size

Assignee

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

Inventors

Michael Schnabel · Lauffen am Neckar, DE
Goran Markovic · Nuremberg, DE
Ralph Sperschneider · Erlangen, DE
Jérémie Lecomte · Santa Clara, US
Christian Helmrich · Erlangen, DE

Key dates

Filing date	Dec 21, 2015
Grant date	May 22, 2018
Priority date	—
Expiry date	Dec 21, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG10L2019/0016
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

An apparatus for decoding an audio signal is provided, having a receiving interface, configured to receive a first frame having a first audio signal portion of the audio signal, and configured to receive a second frame having a second audio signal portion of the audio signal; a noise level tracing unit, wherein the noise level tracing unit is configured to determine noise level information depending on at least one of the first audio signal portion and the second audio signal portion; a first reconstruction unit for reconstructing, in a first reconstruction domain, a third audio signal portion of the audio signal depending on the noise level information; a transform unit for transforming the noise level information to a second reconstruction domain; and a second reconstruction unit for reconstructing, in the second reconstruction domain, a fourth audio signal portion of the audio signal depending on the noise level information.

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