Noise detection method and device

A technology of noise detection and detection method, which is applied in speech analysis, instruments, etc., can solve the problems of high false detection rate, poor short-term impact noise analysis ability, etc., and achieve the effect of improving accuracy

Active Publication Date: 2015-12-02
BIGO TECH PTE LTD
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Problems solved by technology

[0004] In the process of realizing the present invention, the inventor found that the prior art has at least the following problems: Since the time-domain energy analysis has a better analysis ability for long-term stationary noise and poor analysis ability for short-term impact noise, the above method high false positive rate

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Embodiment Construction

[0075] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0076] See figure 1 , one embodiment of the present invention provides a method flow chart of a noise detection method, and this embodiment uses the noise suppression method to be applied to electronic devices such as mobile phones, tablet computers, laptop computers or desktop computers for illustration . The noise detection method includes:

[0077] Step 110: Detect whether the current speech frame contains short-term impact noise through at least two detection methods, the at least two detection methods are at least two of time domain detection, frequency domain detection and pattern recognition detection.

[0078] Since only using the time-domain detection method to analyze the short-term impact noise has a high false detection r...

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Abstract

The invention discloses a noise detection method and a device, belonging to the network communication field. The noise detection method comprises steps of detecting whether a current voice frame comprises short time impact noise through at least two detection modes, wherein the at least two detection modes are two of a time domain detection mode, a frequency domain detection mode and a mode recognition detection mode, and recording noise detection result corresponding to the current voice frame when the fact that the current voice frame comprises short time impact noise is detected. The invention solves the problem that using only time domain energy analysis method to analyze the short time impact noise is high in false drop rate because the analysis capability on the short time impact noise by the time domain energy analysis is poor, and the invention achieves the accuracy of the improving noise detection result.

Description

technical field [0001] The invention relates to the field of network calls, in particular to a noise detection method and device. Background technique [0002] Internet telephony is increasingly favored by users. [0003] In the process of using the Internet phone to make a call, the short-term impact noise generated by environmental factors such as keyboard sound and knocking sound will interfere with the call quality. In the prior art, by performing time-domain energy analysis on the current speech frame, it is judged whether the current speech frame contains short-term impact noise; Perform noise suppression. [0004] In the process of realizing the present invention, the inventor found that the prior art has at least the following problems: Since the time-domain energy analysis has a better analysis ability for long-term stationary noise and poor analysis ability for short-term impact noise, the above method The false detection rate is high. Contents of the inventio...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L25/84
Inventor 侯震
Owner BIGO TECH PTE LTD
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