JP2017027068A

5G,4G,3G

Title

SPEECH/AUDIO SIGNAL PROCESSING METHOD AND APPARATUS

Application Number:

JP20160180496

Publication Date:

02-02-2017

Current Assignee:

Family ID:

Application Date:

15-09-2016

Declaring Company:

Publication Country:

US

Priority Date:

01-03-2012

Title

SPEECH/AUDIO SIGNAL PROCESSING METHOD AND APPARATUS

Application Number:

JP20160180496

Family ID:

Publication Country:

US

Publication Date:

02-02-2017

Application Date:

15-09-2016

Priority Date:

01-03-2012

Current Assignee:

Declaring Company:

Abstract  Abstract

PROBLEM TO BE SOLVED: To provide a speech/audio signal processing method and apparatus, so as to improve aural comfort during bandwidth switching of speech/audio signals.SOLUTION: The method includes the steps of: obtaining an initial high frequency signal corresponding to a current frame of a speech/audio signal when the speech/audio signal switches bandwidth; obtaining a time-domain global gain parameter of the initial high frequency signal; performing weighting processing on an energy ratio and the time-domain global gain parameter and using an obtained weighted value as a predicted global gain parameter, where the energy ratio is a ratio between energy of a historical frame of a high frequency time-domain signal and energy of the current frame of the initial high frequency signal; correcting the initial high frequency signal by using the predicted global gain parameter, to obtain a corrected high frequency time-domain signal; and synthesizing a current frame of a narrow frequency time-domain signal and the corrected high frequency time-domain signal to output the synthesized signal.SELECTED DRAWING: Figure 1

Note:

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

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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.