Method, apparatus and communication terminal for adaptively tuning volume

Abstract

The invention relates to a self-adapting volume control method, a device and a communication terminal belonging to the communication technology field. The invention discloses the self-adapting volume control method comprising: receiving an audio signal from a sound source; acquiring sound source corresponding to the audio signal and an input, output gain parameters corresponding to the sound information; controlling an input, output volumes according to the input, output gain parameters. The invention also discloses the self-adapting volume control device comprising a receiving unit, an acquisition unit and a control unit. The invention also discloses the communication terminal comprising said device. The advantage of the invention is to automatically control the input, output volume and enable the user to obtain satisfactory listening effect.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a method and device for adaptive volume adjustment and a corresponding communication terminal. Background technique [0002] In modern society, video conferencing, as a means of multimedia communication, is increasingly used by people in large-scale conferences such as business conferences and forum branches. This business mainly includes video terminal equipment, transmission network equipment, multi-point control unit (also known as MCU) and other parts, which can realize the interaction of images, voice and data between two or more places at the same time. Among them, the voice transmission is mainly to compress and encode the sound signal picked up by the local microphone, and transmit it to the remote venue through the transmission network. At the same time, the digital signal from the remote venue is received, and after decoding, it is restored to a sound ...

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Problems solved by technology

[0003] In the process of realizing the present invention, the inventor found that there are at least the following technical problems in the prior art: since the volume adjustment on the existing video conferencing terminals is manually adjusted, it cannot well meet various special scenarios in modern conferences. requirements

In particular, the phenomenon of "acoustic echo" is poorly handled, which interferes with the quality of conference communications

Because the effect of echo cancellation depends on whether the prediction of the echo reference signal is accurate, but the signal collected by the microphone on the video terminal equipment is composed of the echo and the voice of the speaker, and the echo signal is affected by the input and output. The gain has a great influence. Since the accurate input and output gain parameters cannot be effectively obtained, it is difficult to calculate and predict the ratio of the echo signal to the echo reference signal through the echo cancellation algorithm, and it is difficult to achieve a better effect. The main factor is the input and output gain, and the user can only adjust the volume of the local side through the output gain according to the volume heard, so this method will not only affect the echo filtering effect, but also cannot make the playback of the entire terminal volume for optimum

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