The entire monitoring system includes nothing more than front-end (acquisition), intermediate (transmission), and back-end (output storage). Then if there is a sound problem, it may be a problem in these three links.
1. The most straightforward way to eliminate problems with the front-end test pickup is through front-end testing. Before the pickup is installed, please connect the pickup directly to the power supply (note that it is best to use a DC-regulated 12V power supply, it is recommended to use Sizheng's PW-V10 dedicated power adapter) and test with headphones. There are two points to note when testing on the front end.
1: Do not use the switching power supply 2: Do not use the speaker test (you can use the headphones).
The connection of the common power supply II. Excluding the transmission end There is no problem in the front end test pickup, we can test whether there is a problem in the transmission process. Under normal circumstances. If using cable transmission, we recommend using PVRX0.5 shielded cable. There are always problems in different monitoring environments or transmission processes. Use the recommended cable to avoid re-pulling. The specific test is as follows: The pickups that have been connected to the audio line will be directly connected to the headphones or speakers (note that they cannot be connected to the power amplifier) ​​without any other storage device at the back end. The transmission process must pay attention to several points.
1: If your transmission distance is too long, please use PVVRX0.5 to shield the audio cable. 2. During the cabling process, do you use a trunk 3 together with strong electricity (the line for daily electricity)? Is there any signal interference source nearby (for example, There are radio stations, mobile signal transmission stations, etc.)
4: Is the audio input on the device connected to the network camera linein (please be sure to check if the camera's audio input port is linein or micin; the pickup can only access the linein<linear input> interface)
III. Excluding the Backend In the absence of any problem in the frontend and the transfer process, we can test whether there is a problem with the backend device. There are three main forms of equipment used for back-end output/storage.
1: Hard disk video recorder (DVR / NVR), in general, several problems that may occur on the hard disk recorder include, port connection instability, input port impedance mismatch, system settings (some devices with two audio input modes, must With the linein<linear input> mode, most pickups on the market are linear inputs)
2: speaker output, direct output from the speaker needs to pay attention to several issues, the speaker can not be too close to the pickup, can not use the amplifier output 3. Access server (computer host) need to pay attention to the input port to select linein input, system settings and other issues.
1. The most straightforward way to eliminate problems with the front-end test pickup is through front-end testing. Before the pickup is installed, please connect the pickup directly to the power supply (note that it is best to use a DC-regulated 12V power supply, it is recommended to use Sizheng's PW-V10 dedicated power adapter) and test with headphones. There are two points to note when testing on the front end.
1: Do not use the switching power supply 2: Do not use the speaker test (you can use the headphones).
The connection of the common power supply II. Excluding the transmission end There is no problem in the front end test pickup, we can test whether there is a problem in the transmission process. Under normal circumstances. If using cable transmission, we recommend using PVRX0.5 shielded cable. There are always problems in different monitoring environments or transmission processes. Use the recommended cable to avoid re-pulling. The specific test is as follows: The pickups that have been connected to the audio line will be directly connected to the headphones or speakers (note that they cannot be connected to the power amplifier) ​​without any other storage device at the back end. The transmission process must pay attention to several points.
1: If your transmission distance is too long, please use PVVRX0.5 to shield the audio cable. 2. During the cabling process, do you use a trunk 3 together with strong electricity (the line for daily electricity)? Is there any signal interference source nearby (for example, There are radio stations, mobile signal transmission stations, etc.)
4: Is the audio input on the device connected to the network camera linein (please be sure to check if the camera's audio input port is linein or micin; the pickup can only access the linein<linear input> interface)
III. Excluding the Backend In the absence of any problem in the frontend and the transfer process, we can test whether there is a problem with the backend device. There are three main forms of equipment used for back-end output/storage.
1: Hard disk video recorder (DVR / NVR), in general, several problems that may occur on the hard disk recorder include, port connection instability, input port impedance mismatch, system settings (some devices with two audio input modes, must With the linein<linear input> mode, most pickups on the market are linear inputs)
2: speaker output, direct output from the speaker needs to pay attention to several issues, the speaker can not be too close to the pickup, can not use the amplifier output 3. Access server (computer host) need to pay attention to the input port to select linein input, system settings and other issues.
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