Patent · US Active

Apparatus and method for synthesizing an audio signal, decoder, encoder, system and computer program

US11373664B2 · kind B2 · utility

1Cited by

26References

21Claims

0Family size

Assignee

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

Inventors

Guillaume Fuchs · Erlangen, DE
Tom Baeckstroem · Nuremberg, DE
Ralf Geiger · Erlangen, DE
Wolfgang Jaegers · Erlangen, DE
Emmanuel Ravelli · Erlangen, DE

Key dates

Filing date	Aug 23, 2019
Grant date	Jun 28, 2022
Priority date	—
Expiry date	Aug 12, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG10L19/06
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method and an apparatus for synthesizing an audio signal are described. A spectral tilt is applied to the code of a codebook used for synthesizing a current frame of the audio signal. The spectral tilt is based on the spectral tilt of the current frame of the audio signal. Further, an audio decoder operating in accordance with the inventive approach is described.

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