CN105469805B

5G,4G

Title

Method and device for processing voice frequency signals

Application Number:

CN201510991494

Publication Date:

12-01-2018

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 signals

Application Number:

CN201510991494

Family ID:

Publication Country:

US

Publication Date:

12-01-2018

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 treating method and apparatus.In one embodiment, voice frequency signal processing method includes:When bandwidth switching occurs in voice frequency signal, initial high frequency band signal corresponding to current frame speech frequency signal is obtained;Obtain the initial high frequency band signal time domain global gain parameter;Energy ratio and the time domain global gain parameter are weighted processing, global gain parameter of the obtained weighted value as prediction, 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;The initial high frequency band signal is modified using the global gain parameter of prediction, obtains the high frequency band time-domain signal of amendment;Synthesize the narrow-band time-domain signal of present frame and the high frequency band time-domain signal of the amendment and export.

Note:

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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.