System and Method for Correcting for Lost Data in a Digital Audio Signal

Patent №

US 8,718,804

Granted

2014-05-06

Filed 2010

Owner

HUAWEI TECHNOLOGIES CO., LTD.

Lab

AI components

1

speech

Assignment

Recorded

Dataset

AIPD

2023_r1 edition

Application

12773668

In an embodiment, a method of receiving a digital audio signal, using a processor, includes correcting the digital audio signal from lost data. Correcting includes copying frequency domain coefficients of the digital audio signal from a previous frame, adaptively adding random noise coefficients to the copied frequency domain coefficients, and scaling the random noise coefficients and the copied frequency domain coefficients to form recovered frequency domain coefficients. Scaling is controlled with a parameter representing a periodicity or harmonicity of the digital audio signal. A corrected audio signal is produced from the recovered frequency domain coefficients.

SpeechG10L 19/0017G10L 19/005

AI classification

Speech1.00
Machine learning0.16
AI hardware0.00
Vision0.00
Natural language0.00
Evolutionary computation0.00
Planning0.00
Knowledge representation0.00

Ownership

HUAWEI TECHNOLOGIES CO., LTD.

assignment · 243410046

Assignors

GAO, YANG, TADDEI, HERVE, LEI, MIAO

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

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