Patent · US Active

Audio processing method and audio processing apparatus, and training method

US9830896B2 · kind B2 · utility

9Cited by

3References

20Claims

0Family size

Assignee

Dolby Laboratories Licensing Corporation · US

Inventors

Jun Wang · Beijing, CN
Lie Lu · Beijing, CN

Key dates

Filing date	May 20, 2014
Grant date	Nov 28, 2017
Priority date	—
Expiry date	Jan 3, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG10H2250/015
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

Audio processing method and audio processing apparatus, and training method are described. According to embodiments of the application, an accent identifier is used to identify accent frames from a plurality of audio frames, resulting in an accent sequence comprised of probability scores of accent and/or non-accent decisions with respect to the plurality of audio frames. Then a tempo estimator is used to estimate a tempo sequence of the plurality of audio frames based on the accent sequence. The embodiments can be well adaptive to the change of tempo, and can be further used to tracking beats properly.

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