How network camera pickup

How network camera pickup
Webcams pickup is actually a very easy problem to solve , and IP Camera picked up audio signals encoded in the front has become a digital audio signal , and then through the transmission lines to be stored on the NVR or computer , as opposed to the previous simulation pickup , pickup audio quality network camera can be greatly improved.
To solve the network camera pickup as long as the following conditions can be several :
1 encoding board used network camera designed with an audio input interface, network cameras used if there is no audio input interface , it is far from the pickup , and generally able to achieve the project level network camera that will have audio coding function , it has a corresponding audio input interface .
2 , the client software or NVR uses functional audio encoding and decoding of audio playback
Just with these two conditions, we can easily achieve network camera picked up audio and video synchronization .
So how to pick up the high-quality sound of it , this is a great choice on how to pay attention to the pickup device , first we have to determine what audio input interface of our IP Camera is also MIC LINE input , if LINE input , then we want to use active pickups with audio amplification , so pick up the effect will be good ; If the MIC input, the use of general passive pickups can also pickup 's . Of course , whether active or passive pickups pickups are all very different from the grade and price , from the ordinary to a thousand dollars per dozen pickups are some exceptions, for different grades of pickups in has a significant difference in the degree of noise reduction processing and the human voice .
Finally , there is a problem is often done by some simulated contractors asked : Network camera pickup cloth need not require an audio cable to the VCR , the answer to this question is : no ! Because the camera inside our audio has been encoded into a digital signal with our digital video signal transmission through the network cable together to come up our VCR .
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