CN103295578B

5G,4G

Title

Method and device for processing voice frequency signal

Application Number:

CN20121051672

Publication Date:

18-05-2016

Current Assignee:

Family ID:

Application Date:

01-03-2012

Declaring Company:

Publication Country:

US

Priority Date:

01-03-2012

Title

Method and device for processing voice frequency signal

Application Number:

CN20121051672

Family ID:

Publication Country:

US

Publication Date:

18-05-2016

Application Date:

01-03-2012

Priority Date:

01-03-2012

Current Assignee:

Declaring Company:

Abstract  Abstract

The embodiment of the invention discloses a kind of voice frequency signal processing method and device. In an embodiment, voice frequency signal processing method comprises: in the time that language audio signal occurs that bandwidth is switched, obtain initial high frequency band signal corresponding to present frame language audio signal; Obtain described initial high frequency band signal time domain global gain parameter; Energy ratio and described time domain global gain parameter are weighted to processing, and the weighted value obtaining is as the global gain parameter of prediction, and wherein, energy ratio is the ratio of historical frames high frequency band time-domain signal energy and present frame initial high frequency band signal energy; Utilize the global gain parameter of prediction to revise described initial high frequency band signal, obtain the high frequency band time-domain signal of revising; The synthetic narrow-band time-domain signal of present frame and the high frequency band time-domain signal of described correction output.

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.