Patent · US Active

Audio codec using noise synthesis during inactive phases

US9153236B2 · kind B2 · utility

6Cited by

39References

28Claims

0Family size

Assignee

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

Inventors

Panji Setiawan · Munich, DE
Konstantin Schmidt · Nuremberg, DE
Stephan Wilde · Wendelstein, DE

Key dates

Filing date	Aug 13, 2013
Grant date	Oct 6, 2015
Priority date	—
Expiry date	Aug 13, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG10L25/84
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A parametric background noise estimate is continuously updated during an active or non-silence phase so that the noise generation may immediately be started with upon the entrance of an inactive phase following the active phase. In accordance with another aspect, a spectral domain is very efficiently used in order to parameterize the background noise thereby yielding a background noise synthesis which is more realistic and thus leads to a more transparent active to inactive phase switching.

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