CN103295578A

5G,4G

Title

Method and device for processing voice frequency signal

Application Number:

CN20121051672

Publication Date:

11-09-2013

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:

11-09-2013

Application Date:

01-03-2012

Priority Date:

01-03-2012

Current Assignee:

Declaring Company:

Abstract  Abstract

The invention discloses a method and device for processing a voice frequency signal. In an implementation case, the method for processing the voice frequency signal comprises the steps: when bandwidth switching happens in the voice frequency signal, obtaining an initial high-frequency band signal corresponding to a current frame voice frequency signal; obtaining global gain parameters of a time domain of the initial high-frequency band signal; conducting weighting processing on an energy ratio and the global gain parameters of the time domain to obtain a weighting value to be used as predicted global gain parameters, wherein the energy ratio is a ratio between the energy of a high-frequency band time domain signal of a historical frame and the energy of the initial high-frequency band signal of the current frame; utilizing the predicted global gain parameters for conducting correction on the initial high-frequency band signal, and obtaining the corrected high-frequency band time domain signal; conducting compound on a narrow-frequency band time domain signal of the current frame and the corrected high-frequency band time domain signal, and outputting the narrow-frequency band time domain signal of the current frame and the corrected high-frequency band time domain signal.

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.