Patent · US Active

Concept for encoding an audio signal and decoding an audio signal using deterministic and noise like information

US10607619B2 · kind B2 · utility

4Cited by

18References

18Claims

0Family size

Assignee

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

Inventors

Guillaume Fuchs · Erlangen, DE
Markus Multrus · Nuremberg, DE
Emmanuel Ravelli · Erlangen, DE
Markus Schnell · Nuremberg, DE

Key dates

Filing date	Apr 1, 2019
Grant date	Mar 31, 2020
Priority date	—
Expiry date	Apr 1, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG10L2025/932
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

An encoder for encoding an audio signal has: an analyzer configured for deriving prediction coefficients and a residual signal from an unvoiced frame of the audio signal; a gain parameter calculator configured for calculating a first gain parameter information for defining a first excitation signal related to a deterministic codebook and for calculating a second gain parameter information for defining a second excitation signal related to a noise-like signal for the unvoiced frame; and a bitstream former configured for forming an output signal based on an information related to a voiced signal frame, the first gain parameter information and the second gain parameter information.

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