Method and system for determining main microphone and auxiliary microphone from multiple microphones

A technology of secondary microphones and microphones is applied in the field of determining the primary and secondary microphones, which can solve the problems of low signal-to-noise ratio of sound signals and affect sound quality, and achieve the effect of flexible switching.

Inactive Publication Date: 2015-01-07
ZTE CORP
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Problems solved by technology

[0005] The present invention provides a method and system for determining the primary and secondary microphones from a plurality of microphones, so as to solve the technical problem of how to avoid the low signal-to-noise ratio of the sound signal acquired by the microphone, thereby affecting the sound quality

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  • Method and system for determining main microphone and auxiliary microphone from multiple microphones
  • Method and system for determining main microphone and auxiliary microphone from multiple microphones
  • Method and system for determining main microphone and auxiliary microphone from multiple microphones

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Embodiment Construction

[0041] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0042] figure 2 It is a flowchart of a method for determining a primary and secondary microphone from multiple microphones according to an embodiment of the present invention.

[0043] S201 sets the microphone closest to the sound source among the multiple microphones as the main microphone;

[0044] Optionally, it is possible to determine which microphone is closest to the sound source by the signal-to-noise ratio of the received signal, that is, select the signal-to-noise ratio with the largest value from the signal-to-noise ratios of the received signals of multiple micr...

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Abstract

The invention provides a method and system for determining a main microphone and an auxiliary microphone from multiple microphones. The method includes the steps of determining the microphone, closest to a sound source, in the multiple microphones as the main microphone, and selecting one microphone, except for the main microphone, in the multiple microphones as the auxiliary microphone. The method and system solve the technical problem that as sound signals obtained by the microphones are low in signal to noise ratio, the sound quality is affected.

Description

technical field [0001] The present invention relates to the field of mobile terminal noise cancellation, in particular to a method and system for determining a main and auxiliary microphone from multiple microphones. Background technique [0002] The mobile terminal noise cancellation solution generally has two microphones, a primary microphone and a secondary microphone. There is a certain distance requirement between the two positions. When talking in the hand, the main microphone collects voice and environmental noise, and the secondary microphone collects environmental noise and a small amount of voice signals. The environmental noise collected by the two microphones is equal in magnitude, but the voice signals are quite different. The voice signals collected by the two microphones can be differentially amplified or digitally processed to eliminate environmental noise to the greatest extent and retain voice signals. [0003] Now when the mobile terminal leaves the facto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/03H04M1/19
CPCH04M1/6008H04M1/03
Inventor 庄佳麟马骏
Owner ZTE CORP
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