Device and method for eliminating voice communication terminal background noise

Abstract

The present invention discloses a device for eliminating background noise of a voice communication terminal, which includes a Sound Sensor Module, an Adaptive Filter, a Noise Estimating Module and an Adding Module connected successively. The invention also discloses a method for eliminating background noise of a voice communication terminal, which includes: collecting sound signals including the a talker's voice and receiver background noise received by a listener; estimating the receiver background noise signal in the signal collected; reversing the phase of the estimated receiver background noise signal and adding the estimated receiver background noise signal with reversed phase on the talker's voice signal received by the voice communication terminal before playing the added signal for the listener. The device and method can properly counteract the background noise around an earphone, and reduce the interference of background noise to the listener.

Description

technical field [0001] The invention relates to a communication terminal voice processing technology, in particular to a device and method for eliminating background noise of a voice communication terminal. Background technique [0002] With the rapid development and increasing popularity of communication technology, communication has become an important means of daily contact and communication for people. Therefore, people have also put forward higher requirements for the voice quality of calls. In actual communication, both communication users often communicate in some noisy background environments. At this time, the sound heard by the receiver user includes not only the voice of the sender user, but also other sounds around the sender and receiver user, such as other people's voices, footsteps, collision sounds, music, and sounds from vehicles, etc. . These sounds other than the voices of both communication users are called background noise, the background noise around ...

AI Technical Summary

Problems solved by technology

[0016] Although the existing technology provides a solution to eliminate the background noise of the sender, which can reduce the interference of the background noise to the voice, the existing technology only considers the elimination of the background noise of the sender, but does not perform any processing on the background noise of the receiver, ignoring the background noise of the receiver. Background noise interferes with the sound from the receiver's earphones, especially when the receiver is in a noisy environment, the receiver's background noise interferes with the speaker's voice especially

However, the current method for mobile communication terminals to overcome the background noise of the receiver is to increase the volume of the earphones. This method is limited by the maximum volume of the earphones, and the effect in noisy environments is still very poor.

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