Patent · US Active

Noise generation in audio codecs

US8825496B2 · kind B2 · utility

13Cited by

2References

20Claims

0Family size

Assignee

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

Inventors

Panji Setiawan · Munich, DE
Stephan Wilde · Wendelstein, DE
Anthony Lombard · Erlangen, DE
Martin Dietz · Nuremberg, DE

Key dates

Filing date	Aug 14, 2013
Grant date	Sep 2, 2014
Priority date	—
Expiry date	Aug 14, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG10L25/06
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

The spectral domain is efficiently used in order to parameterize the background noise using a background noise estimator configured to determine a parametric background noise estimate based on a spectral decomposition representation of an input audio signal so that the parametric background noise estimate spectrally describes a spectral envelope of a background noise of the input audio signal, 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.