COMFORT NOISE ADDITION FOR MODELING BACKGROUND NOISE AT LOW BIT-RATES

Patent №

US 10,147,432

Granted

2018-12-04

Filed 2015

Owner

FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.

Lab

AI components

1

speech

Assignment

Recorded

Dataset

AIPD

2023_r1 edition

Application

14744788

The invention provides a decoder being configured for processing an encoded audio bitstream, wherein the decoder includes: a bitstream decoder configured to derive a decoded audio signal from the bitstream, wherein the decoded audio signal includes at least one decoded frame; a noise estimation device configured to produce a noise estimation signal containing an estimation of the level and/or the spectral shape of a noise in the decoded audio signal; a comfort noise generating device configured to derive a comfort noise signal from the noise estimation signal; and a combiner configured to combine the decoded frame of the decoded audio signal and the comfort noise signal in order to obtain an audio output signal.

AI classification

Speech0.99
Planning0.00
Natural language0.00
AI hardware0.00
Evolutionary computation0.00
Machine learning0.00
Vision0.00
Knowledge representation0.00

Ownership

FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.

assignment · 371920631

Assignors

FUCHS, GUILLAUME, LOMBARD, ANTHONY, RAVELLI, EMMANUEL, DOEHLA, STEFAN, LECOMTE, JEREMIE, DIETZ, MARTIN

On an employer assignment, the assignors are typically the inventors.

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