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Method for detecting conditions of microphone voice-grade channels and terminal

An audio channel and mobile terminal technology, applied in electrical components and other directions, can solve the problems of foreign objects in the microphone audio channel, reduce call quality, microphone damage, etc., and achieve the effect of improving user experience and improving call quality.

Active Publication Date: 2014-07-16
NUBIA TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In many scenarios, the microphone audio channel of the mobile terminal may be abnormal, such as the microphone is damaged, there is a foreign object in the microphone audio channel, or the wind audio channel is blocked. At this time, the sound effect of the mobile terminal call and recording will be poor, especially for For mobile terminals with dual microphones or multiple microphones, the effect of noise reduction will also become worse, which will eventually reduce the quality of calls

Method used

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  • Method for detecting conditions of microphone voice-grade channels and terminal
  • Method for detecting conditions of microphone voice-grade channels and terminal
  • Method for detecting conditions of microphone voice-grade channels and terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as figure 1 As shown, a method for detecting microphone audio channel conditions provided by the present invention comprises the following steps:

[0040] S101. Acquire a sound signal through each microphone of the mobile terminal.

[0041] Specifically, assuming that the mobile terminal has N microphones (such as the first to sixth) microphones, the first sound signal is obtained through the first microphone, the second sound signal is obtained by the second microphone, and the Nth microphone is obtained by the Nth microphone. sound signal.

[0042] S102. Extract features of the acquired sound signals of various channels.

[0043] Preferably, for each sound signal, in the same sampling time period, at least one frame signal is collected, and one or more of the energy intensity, frequency response characteristics, signal correlation, or signal-to-noise ratio of the frame signal is extracted. combination.

[0044] Specifically, the characteristic process of anal...

Embodiment 2

[0050] Such as figure 2 As shown, a method for detecting a microphone audio channel condition provided by a preferred embodiment of the present invention includes the following steps:

[0051]S201. Acquire a sound signal through each microphone.

[0052] S202. Extract the acquired background sound signal of each channel of sound signal, and analyze the characteristics of the background sound signal.

[0053] Preferably, for each sound signal, in the same sampling period, at least one frame signal is collected, the user sound signal in the frame signal is removed, and the background sound signal is obtained; the energy intensity, signal correlation, and Any one or combination of characteristics of frequency response and signal-to-noise ratio.

[0054] S203. According to the difference between the characteristics of the various background sound signals, determine whether there is an abnormal state of the audio channel of the microphone.

[0055] Preferably, the characteristi...

Embodiment 3

[0062] Such as image 3 As shown, a mobile terminal provided by an embodiment of the present invention includes:

[0063] Sound collection module 10, is used for obtaining sound signal by each road microphone;

[0064] Feature analysis module 20, for extracting the feature of each sound signal of acquisition;

[0065] The abnormality determination module 30 is configured to determine whether there is an abnormal condition of the microphone audio channel according to the difference between the characteristics of the various sound signals.

[0066] Specifically, the function of detecting the audio channel status of the microphone in the mobile terminal can be manually started by the user, or can be automatically started when the mobile terminal starts a specific application (such as a call or sound source identification).

[0067] As a preferred embodiment, the feature analysis module 20 is specifically configured to: collect at least one frame signal in the same sampling time...

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Abstract

The invention discloses a method for detecting the conditions of microphone voice-grade channels and a terminal, and belongs to the field of mobile terminals. The method includes the steps that acoustical signals are acquired through each microphone; the characteristics of each acquired acoustical signal are extracted; whether abnormal conditions of the microphone voice-grade channels exist or not is judged according to the difference between the characteristics of the acoustical signals. According to the method, whether the abnormal conditions of the microphone voice-grade channels exist or not is judged through analysis of the difference between the characteristics of the acoustical signals collected through the microphones, signal optimization is carried out on an abnormal channel or a user is reminded to examine and handle the abnormal channel, and therefore speech quality can be improved.

Description

technical field [0001] The present invention relates to a mobile terminal, in particular to a mobile terminal and a method for detecting the status of a microphone audio channel of the mobile terminal. Background technique [0002] In many scenarios, the microphone audio channel of the mobile terminal may be abnormal, such as the microphone is damaged, there is a foreign object in the microphone audio channel, or the wind audio channel is blocked. At this time, the sound effect of the mobile terminal call and recording will be poor, especially for For a mobile terminal with dual microphones or multiple microphones, the effect of noise reduction will also become worse, which ultimately reduces the call quality. Contents of the invention [0003] In view of this, the technical problem to be solved by the present invention is to provide a method and a mobile terminal for detecting the condition of the microphone audio channel, so as to automatically detect the abnormal microp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R29/00
Inventor 李琳
Owner NUBIA TECHNOLOGY CO LTD
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