A kind of voice signal processing method and mobile terminal
A voice signal processing and voice signal technology, applied in the field of communication, can solve the problems of low voice signal clarity, less high-frequency signals, and more low-frequency signals
Active Publication Date: 2020-04-21
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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[0002] In the prior art, the frequency response of voice signal processing of mobile terminals (such as mobile phones, tablet computers, etc.) is fixed, and a fixed frequency response curve is obtained through fixed standard voice test signals. In practical applications, mobile terminals receive There are some differences between the voice signal and the fixed standard voice test signal. Generally, there are more low-frequency signals and less high-frequency signals. Moreover, if the actual voice signal is processed according to the method of processing the standard voice test signal, it will lead to noise during the call. Speech signal clarity is low
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[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0028] The terms "first", "second", "third" and "fourth" in the description and claims of the present invention and the drawings are used to distinguish different objects, rather than to describe a specific order . Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited ...
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The invention provides a voice signal processing method and a mobile terminal. The voice signal processing method comprises a signal frequency spectrum analyzer is utilized to analyze a present voice signal to acquire a high frequency signal, a intermediate frequency signal and a low frequency signal of the present voice signal; an energy ratio of the high frequency signal to the intermediate frequency signal to the low frequency signal is calculated to acquire a:b:c, and the a, the b and the c are all integer greater than 0; according to the a:b:c and a preset energy ratio A:B:C, a mapping parameter of the a:b:c and the A:B:C is determined; according to the mapping parameter, an adaptive filter is configured, the present voice signal is filtered according to the configured adaptive filter, and an output signal is acquired. The method is advantaged in that sharpness of the voice signal in a conversation process can be improved.
Description
technical field [0001] The invention relates to the technical field of communications, in particular to a voice signal processing method and a mobile terminal. Background technique [0002] In the prior art, the frequency response of voice signal processing of mobile terminals (such as mobile phones, tablet computers, etc.) is fixed, and a fixed frequency response curve is obtained through fixed standard voice test signals. In practical applications, mobile terminals receive There are some differences between the voice signal and the fixed standard voice test signal. Generally, there are more low-frequency signals and less high-frequency signals. Moreover, if the actual voice signal is processed according to the method of processing the standard voice test signal, it will lead to noise during the call. Speech signal clarity is low. Contents of the invention [0003] Embodiments of the present invention provide a voice signal processing method and a mobile terminal, which ...
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IPC IPC(8): G10L19/02G10L19/26H04M1/725
CPCG10L19/02G10L19/26H04M1/72433
Inventor 李应伟
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD