Over the years, the government and large enterprises have been the main market for domestic videoconferencing, and their application models are also dominated by traditional video and telephone conferences. In recent years, the application needs of videoconferencing by the government and large enterprises are undergoing some changes. The extension of videoconferencing to small and medium-sized enterprises is also getting faster and faster, coupled with the penetration of technologies such as cloud computing, media integration, and mobile internet, domestic video The conference is showing some new trends.
First, video conference camera problem solving
(1) The problem that the conference camera is powered up without action or images is generally caused by power failures, switching power supply failures, and loose power cord plugs. This is relatively simple. The user can solve the problem by plugging in the power cord plug.
(II) The camera can't perform self-test or accompanied with noise during the application process. For such problems, the user can first check if the power cord is loose, because the power cord is loose and the power supply power is insufficient, which directly leads to the problem. If it is not the power cord that is loose, it is likely to be a mechanical failure. The user needs to send the product for repair.
(3) In practical applications, the conference camera is not controlled by the remote controller. Generally speaking, this problem is mainly caused by insufficient battery power or long-distance use of the remote controller. The user can solve the problem by replacing the remote control battery and adjusting the usage distance. .
(D) Loss of camera images when the camera pan-tilt rotates in the conference Generally speaking, this problem is mainly caused by insufficient power supply or poor contact of the camera's video cable. The user can solve the problems by checking whether the power cable plug is loose and replacing the video cable.
(5) The appearance of the image quality obtained by the display device connected to the digital interface is not directly connected to the video interface. The appearance of the problem is related to the ability of the device in which the digital interface is located to collect and process the image. After the analog-to-digital conversion, the image will inevitably cause images. Loss of quality. In this case, the user needs to consult the manufacturer or dealer.
Second, video conference audio problem solving
With the increasing use of videoconferencing, the demand for videoconferencing is getting higher and higher. For videoconferencing, everyone will say that video is more important than it really is. In videoconferencing, audio is the most important thing. The exchanges are mainly achieved through audio conversations or discussions. As long as there are pictures in the video, if the clear performance is of course the best, but the most convincing certainly is audio, with good video and ordinary audio than with good audio Normal video is much more useful. Of course, due to the fact that the emphasis on audio products is not very high, the probability of audio problems during the video conference is high.
(A) The main reason for the lightness of the audio conversation is that the voice from the other party is very light. It takes a lot of effort to understand what the other party is talking about. The problem usually lies in the collection of sounds. This party can test its own speakers or horns first, and use a local computer to play tests to see if the volume of the play is large enough. If it is determined that the audio frequency of the party is normal, you can basically judge the problem. In the upstream, generally can adjust the device input (recording) volume size, which requires special signature, is to adjust the recording volume, the actual operation is often a lot of people, will only adjust the speaker's voice, and will not use the recording volume size adjustment.
(2) The noise level during the audio conversation is relatively large. There are mainly two aspects. First, during the conference, there may be noise sources such as fans and air conditioners. However, the general conference audio pickup products will not Special noise treatment causes noise to be picked up. Second, it is audio up. The volume of the recording is too large, resulting in a slight movement with large sound collection and noise. Of course, sometimes there are some functions in the conference software. For example, when noise reduction, squelch and other functions are turned on, they can easily cause noise if they conflict with the software.
(3) Can hear one's own voice during the video conference During the video conference, it was found that one could hear one's own voice and it came back. For example, when many mobile phones are used for hands-free, they are also prone to such situations. The main reason is that audio equipment is not a good choice. Although current videoconferencing software has echo cancellation function, none of them can really eliminate echoes, so it needs rear-end audio equipment to match. For example, Ericsson's omnidirectional microphone requires its own echo cancellation function. In order to ensure that the other party's voice comes out of the horn, it will not be transmitted from the product's pickup part, resulting in an echo. If the conditions are limited, the sensitivity of the audio input device can be reduced, the distance between the pickup device and the speaker, the power amplifier can be increased, the sound can be reduced, and the echo can be improved by the distance effect.
First, video conference camera problem solving
(1) The problem that the conference camera is powered up without action or images is generally caused by power failures, switching power supply failures, and loose power cord plugs. This is relatively simple. The user can solve the problem by plugging in the power cord plug.
(II) The camera can't perform self-test or accompanied with noise during the application process. For such problems, the user can first check if the power cord is loose, because the power cord is loose and the power supply power is insufficient, which directly leads to the problem. If it is not the power cord that is loose, it is likely to be a mechanical failure. The user needs to send the product for repair.
(3) In practical applications, the conference camera is not controlled by the remote controller. Generally speaking, this problem is mainly caused by insufficient battery power or long-distance use of the remote controller. The user can solve the problem by replacing the remote control battery and adjusting the usage distance. .
(D) Loss of camera images when the camera pan-tilt rotates in the conference Generally speaking, this problem is mainly caused by insufficient power supply or poor contact of the camera's video cable. The user can solve the problems by checking whether the power cable plug is loose and replacing the video cable.
(5) The appearance of the image quality obtained by the display device connected to the digital interface is not directly connected to the video interface. The appearance of the problem is related to the ability of the device in which the digital interface is located to collect and process the image. After the analog-to-digital conversion, the image will inevitably cause images. Loss of quality. In this case, the user needs to consult the manufacturer or dealer.
Second, video conference audio problem solving
With the increasing use of videoconferencing, the demand for videoconferencing is getting higher and higher. For videoconferencing, everyone will say that video is more important than it really is. In videoconferencing, audio is the most important thing. The exchanges are mainly achieved through audio conversations or discussions. As long as there are pictures in the video, if the clear performance is of course the best, but the most convincing certainly is audio, with good video and ordinary audio than with good audio Normal video is much more useful. Of course, due to the fact that the emphasis on audio products is not very high, the probability of audio problems during the video conference is high.
(A) The main reason for the lightness of the audio conversation is that the voice from the other party is very light. It takes a lot of effort to understand what the other party is talking about. The problem usually lies in the collection of sounds. This party can test its own speakers or horns first, and use a local computer to play tests to see if the volume of the play is large enough. If it is determined that the audio frequency of the party is normal, you can basically judge the problem. In the upstream, generally can adjust the device input (recording) volume size, which requires special signature, is to adjust the recording volume, the actual operation is often a lot of people, will only adjust the speaker's voice, and will not use the recording volume size adjustment.
(2) The noise level during the audio conversation is relatively large. There are mainly two aspects. First, during the conference, there may be noise sources such as fans and air conditioners. However, the general conference audio pickup products will not Special noise treatment causes noise to be picked up. Second, it is audio up. The volume of the recording is too large, resulting in a slight movement with large sound collection and noise. Of course, sometimes there are some functions in the conference software. For example, when noise reduction, squelch and other functions are turned on, they can easily cause noise if they conflict with the software.
(3) Can hear one's own voice during the video conference During the video conference, it was found that one could hear one's own voice and it came back. For example, when many mobile phones are used for hands-free, they are also prone to such situations. The main reason is that audio equipment is not a good choice. Although current videoconferencing software has echo cancellation function, none of them can really eliminate echoes, so it needs rear-end audio equipment to match. For example, Ericsson's omnidirectional microphone requires its own echo cancellation function. In order to ensure that the other party's voice comes out of the horn, it will not be transmitted from the product's pickup part, resulting in an echo. If the conditions are limited, the sensitivity of the audio input device can be reduced, the distance between the pickup device and the speaker, the power amplifier can be increased, the sound can be reduced, and the echo can be improved by the distance effect.
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