Common audio problems in conference system

With the increasing use of video conference, people’s demand for video conference is higher and higher. For video conference, people will say that video is more important. In fact, in video conference, audio is the most important thing. They think that the communication between participants is mainly realized through audio dialogue or discussion. As long as there are pictures in video conference, it is best if they can clearly perform But the most persuasive thing is audio. Having good video and ordinary audio is much more useful than having good audio and ordinary video.

Of course, due to the low attention paid to audio products, there is a high probability of audio problems in the process of video conference. Here, Xiaolei summarizes the audio problems of video conference encountered in practice, so as to find the causes of problems quickly when there are problems.

Soft voice during audio call

One

This mainly shows that the voice from the other side is very light, and it needs to be very powerful to hear what the other side is talking about. Generally speaking, the problem lies in the acquisition of sound. We can first test our own speakers or speakers, and then use the local computer to play the test to see whether the volume is large enough. If we are sure that our audio downlink is normal, we can basically judge that the problem lies in the uplink. Generally, we can adjust the input (recording) volume of the device. This requires special signature, which is to adjust the recording volume Volume, in fact, many people only adjust the sound of the speaker, but don’t know the volume adjustment of the recording. They always respond that the sound is light, but when they ask the other party to adjust the volume of the recording, nine times out of ten they are wrong.

There is a lot of noise during the audio call

Two

There are two main effects on the noise level. One is that there may be noise sources such as fans and air conditioners during the conference. However, ordinary conference audio pickup products do not have special noise processing, which leads to the noise being picked up. The second is that the audio goes up. The volume of the recording is too loud, which leads to a large sound collection for slight actions, causing noise, Of course, sometimes there are some functions in the conference software, such as noise reduction, squelch and so on. If they conflict with the software, it is easy to cause noise.

You can hear your own voice during the video conference

Three

In the process of video conference, it is found that you can hear your voice coming back. For example, when many mobile phones use hands-free, this kind of situation is easy to occur. This kind of situation is mainly because the audio equipment is not well chosen. Although the current video conference software has the function of eliminating echo, none of them can really eliminate echo, so you need the audio equipment at the back and front end To match. If limited by the conditions, it can reduce the sensitivity of audio input equipment, increase the space distance of pickup equipment, loudspeaker and power amplifier, reduce the sound and improve the echo through the distance effect.

During the video conference, it is found that there are magnetic sounds, sometimes harsh sounds

Four

This problem is called howling. From the perspective of practical application, there are two situations that can cause this situation. One is that the local speaker releases the recorded sound, which causes the local howling. This problem can be solved by disconnecting the video conference, and then directly speaking to the pickup product to see whether the sound will come out of the local speaker. If it does, it needs to be set, generally in the playback options Remove the audio output of the pickup device and make sure that no local amplification will cause squealing. The second reason is that the echo on both sides leads to squealing. This problem is mainly the echo product, which needs to be eliminated to achieve no squealing.

The voice is not continuous during the audio call.

Five

If the above problems occur, first check the network cause, whether there is delay in the network, check the video options of intercom to ensure that there is no network cause. After the network problem is eliminated, if the problem still exists, you need to disconnect the software, because sometimes the software also has conflicts, such as QQ in the multi-party call process, the main initiator and either party will have good results, but It is easy for other parties who are not the main sponsor to have intermittent and incoherent voice, which is related to the function of the software.

No sound output in video conference

Six

When encountering such problems, first check whether the local area is normal. Generally speaking, the speaker, software, computer recording and other steps are used to analyze the local problems. If there is no problem in the local area, it is generally that the remote area is not transmitted. In this way, it is necessary to let the remote area eliminate the problem first, and whether the sound is up (recorded). If there is no problem, check the video software to see if the audio input device has been set as the pickup device you need. If not, please select. Of course, some conference software needs to be the main person to speak, it needs to turn on the corresponding functions, and then test.

The voice changes very seriously. I can’t hear it clearly

Seven

Generally speaking, the above problems are software conflicts, or you need to add hardware products after you open video software. Because it is easy for the computer end to have software conflicts when dealing with such problems, resulting in failure to work normally, you need to eliminate the software end problems first, make sure they are OK, and then come to see if there is any problem.

The sound delay is quite severe

Eight

When the sound delay is severe, first test whether the network is in good condition. If you are in the LAN, search the LAN once to see if someone is using the network to watch video or other software with large traffic, such as