Speech state switching method and device, communication system

Abstract

The invention discloses a speaking state switching method and device, and a communication system. Wherein, the method includes: acquiring a sound input signal and a sound reference signal; performing preprocessing on the sound input signal and the sound reference signal to determine a sound output signal; detecting a sound input energy value, a sound reference energy value, and a sound output energy value; Calculate the sound output energy value and the sound input energy value to obtain the sound energy ratio; determine the target speech state according to the sound input energy value, sound reference energy value and sound energy ratio; judge whether the target speech state is the same as the current speech state; If it is determined that the target speech state is different from the current speech state, switch the current speech state to the target speech state. The invention solves the technical problem in the related art that, due to the reverberation in the room, an error occurs in judging the current speech state by the communication system, resulting in a decrease in user experience.

Description

technical field [0001] The invention relates to the technical field of sound processing, in particular to a method and device for switching a speaking state, and a communication system. Background technique [0002] In related technologies, in a real-time communication system, automatic echo cancellation processing (AEC) is usually performed on voice signals. If there is no AEC, the speaking end will hear its own echo, which will cause a bad experience. The mechanism of echo generation is: the speaker's voice is transmitted to the remote device, the speaker of the remote device plays these sounds, and then the remote microphone will receive the direct sound of the speaker and the echo of the room, and these signals will be sent back to the remote device through the communication system. On the speaker's device, it is played out through the speaker, forming an echo. Since this time is usually relatively long, it will be very uncomfortable for the speaker to hear this echo. ...

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a method and device for switching the speaking state, and a communication system, so as to at least solve the technical problem in the related art that due to the reverberation in the room, the communication system makes an error in judging the current speaking state, resulting in a decrease in user experience.

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