AU2018214113B2

5G,4G

Title

AUDIO SIGNAL CLASSIFICATION METHOD AND APPARATUS

Application Number:

AU20180214113

Publication Date:

14-11-2019

Current Assignee:

Family ID:

Application Date:

09-08-2018

Declaring Company:

Publication Country:

US

Priority Date:

06-08-2013

Title

AUDIO SIGNAL CLASSIFICATION METHOD AND APPARATUS

Application Number:

AU20180214113

Family ID:

Publication Country:

US

Publication Date:

14-11-2019

Application Date:

09-08-2018

Priority Date:

06-08-2013

Current Assignee:

Declaring Company:

Abstract  Abstract

An audio signal classification method is provided, where the method includes: performing frame division processing on an input audio signal; obtaining a linear prediction residual energy tilt of a current audio frame, wherein the linear prediction residual energy tilt denotes an extent to which linear prediction residual energy of the audio signal changes as a linear prediction order increases; storing the linear prediction residual energy tilt in a memory; and classifying the audio frame according to statistics of a part of data of prediction residual energy tilts in the memory. Previous Previous Previous Current Nth °°° second N frame ~ frame frm fae Perform frame division processing on an input audio signal, and determine, according to voice activity of a current audio frame, 101 whether to obtain a frequency spectrum fluctuation of the current audio frame and store the frequency spectrum fluctuation in a frequency spectrum fluctuation memory Update, according to whether the audio frame is percussive music or activity of a historical 102 audio frame, frequency spectrum fluctuations stored in the frequency spectrum fluctuation memory Classify the current audio frame as a speech frame or a music frame according to statistics of a part or all of data of the multiple 103 frequency spectrum fluctuations stored in the frequency spectrum fluctuation memory

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.