JP2018197875A

5G,4G

Title

AUDIO SIGNAL CLASSIFICATION METHOD AND DEVICE

Application Number:

JP20180155739

Publication Date:

13-12-2018

Current Assignee:

Family ID:

Application Date:

22-08-2018

Declaring Company:

Publication Country:

US

Priority Date:

06-08-2013

Title

AUDIO SIGNAL CLASSIFICATION METHOD AND DEVICE

Application Number:

JP20180155739

Family ID:

Publication Country:

US

Publication Date:

13-12-2018

Application Date:

22-08-2018

Priority Date:

06-08-2013

Current Assignee:

Declaring Company:

Abstract  Abstract

To provide an audio signal classification method.SOLUTION: The audio signal classification method is provided that includes: a step (101) of determining, according to voice activity of a current audio frame, whether to obtain a frequency spectrum fluctuation of the current audio frame and store the frequency spectrum fluctuation in a frequency spectrum fluctuation memory; a step (102) of updating, according to whether the audio frame is percussive music or activity of a historical audio frame, frequency spectrum fluctuations stored in the frequency spectrum fluctuation memory; and a step (103) of classifying the current audio frame as a speech frame or a music frame according to statistics of a part or all of effective data of the frequency spectrum fluctuations stored in the frequency spectrum fluctuation memory. An audio signal classification apparatus is further provided.SELECTED DRAWING: Figure 2

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.