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Signal processing method and system in network voice communication

A voice signal and network voice technology, applied in the field of network communication, can solve the problems of howling and reduce the voice quality, and achieve the effect of suppressing howling and improving the processing rate.

Active Publication Date: 2016-06-29
BIGO TECH PTE LTD
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AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a signal processing method and system in Internet voice communication for the above-mentioned problems of howling caused by residual echo in Internet voice communication and voice quality reduction

Method used

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  • Signal processing method and system in network voice communication
  • Signal processing method and system in network voice communication
  • Signal processing method and system in network voice communication

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Embodiment Construction

[0018] see figure 1 , figure 1 It is a schematic flowchart of the first embodiment of the signal processing method in Internet voice communication of the present invention.

[0019] The signal processing method in the network voice communication described in this embodiment includes the following steps:

[0020] Step 101, receiving a voice signal of network voice communication, and obtaining a middle and low frequency signal therefrom according to the sound frequency contained in the voice signal, wherein the middle and low frequency signal is voice whose frequency component in the voice signal is in the middle and low frequency threshold range data.

[0021] Step 102, according to the corresponding power of each middle and low frequency signal in the speech signal, the suppressed power is obtained.

[0022] Step 103, judging whether the power corresponding to the high-frequency signal in the speech signal is greater than the suppressed power, and if so, attenuating the pow...

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Abstract

The invention discloses a method and system for processing signals in network voice communication. The method comprises the steps that the voice signals of the network voice communication are received, and low-and-medium frequency signals are acquired from the voice signals according to voice frequency included in the voice signals the low-and-medium frequency signals are voice data with frequency components in the voice signals being within a low-and-medium threshold range; restraining power is obtained according to power, corresponding to low-and-medium frequency signals, in the voice signals; whether power, corresponding to high-frequency signals, in the voice signals is larger than the restraining power or not is judged, and if the power is larger than the restraining power, the power, corresponding to the high-frequency signals, in the voice signals is attenuated below the restraining power. According to the method and system, howling can be effectively restrained without affecting the fidelity of communication voice, and the processing speed of howling restraining can be improved.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a signal processing method and system in network voice communication. Background technique [0002] With the popularization of smart phones and mobile Internet, voice over Internet Protocol (VoIP) applications are increasing. Such applications require echo cancellation processing to solve the echo problem in hands-free mode. [0003] However, due to the large differences in voice terminal equipment and the poor real-time performance of the operating system, the application program often cannot eliminate the echo well. These echo residues are continuously amplified and transmitted back, which will cause howling and greatly reduce the voice quality. Contents of the invention [0004] Based on this, it is necessary to provide a signal processing method and system in Internet voice communication for the above-mentioned problem of howling caused by residual echo in In...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10L21/0208
Inventor 张帆胡建强马跃刘丽成家雄宋思超
Owner BIGO TECH PTE LTD
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