Patent · US Active

Method, apparatus, system and software product for adaptation of voice activity detection parameters based on the quality of the coding modes

US8032370B2 · kind B2 · utility

4Cited by

8References

28Claims

0Family size

Assignee

Nokia · FI

Inventors

Kari Juhani Jarvinen · Tampere, FI
Pasi Ojala · Kirkkonummi, FI
Ari Lakaniemi · Helsinki, FI

Key dates

Filing date	May 9, 2006
Grant date	Oct 4, 2011
Priority date	—
Expiry date	Nov 2, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG10L19/18
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Encoding audio signals for Discontinuous with selecting an encoding mode for encoding the signal categorizing the signal into active segments having voice activity and non-active segments having substantially no voice activity by using categorization parameters depending on the quality of the selected encoding mode and encoding at least the active segments using the selected encoding mode that for a low quality encoding produce a lower number of “active” temporal section detections than for a high quality encoding mode, with comfort noise parameters producing less contrast from background noise for low quality encoding than for high quality modes.

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