Audio monitoring is also called monitor head, audio monitoring head, is used to synchronize the recording and recording of the audio monitoring accessories. Image said: camera is the eyes, the audio monitoring is the ear. Hard disk recorders, network video servers, etc. are responsible for digital transmission and storage of sound and images, monitors and speakers are used for playback. It can be said that no video recording of the audio monitoring is like a silent movie. The audio monitoring integrates advanced noise handling, echo processing, and long distance transmission drive circuits to accommodate higher standards and special needs for security engineering, faithfully recording and reusing the scene with its high fidelity sound quality.
The microphone (also known as a microphone) is simply a transducer that converts sound into an electronic signal. Then the main difference between the pickup and the microphone in there, the following simple description of the difference between the two you understand the real reason.
The?audio monitoring is designed to be highly sensitive, fully directional, and also integrated with preamplifier circuitry. Therefore, the monitor head can be directly connected DVR, active speakers, headphones, etc. can be directly collected to the sound out, and the microphone need to connect the amplifier, because the ordinary microphone is usually directional and low sensitivity, at a close distance Aimed at the words Caixing.
In terms of hardware, the audio monitoring increases the regulator circuit, the frequency selection circuit, and the front audio amplifier stage, which is why the audio monitoring needs to be input to the power supply.
In terms of range, the microphone can only increase the sensitivity to increase the receiving range; and the audio monitoring can adjust the product power and gain to expand the scope of monitoring, which makes the audio monitoring in the adjustment range has a great advantage.
Line in and Mic in the difference and use
Our computer sound card, the general will have Line in and Mic in two interfaces, translated into Chinese is the “linear input” and “microphone input”, these two are input ports, but there are still differences:
1, Line in port: the port is mainly used to connect electric guitar, keyboard, synthesizer and other external equipment, audio signal output recording, because the output power of these devices is relatively large, so need to connect to Line in port recording, of course, use They can also be recorded to some extent, also known as the external device “recorded”. Generally you use the sound card the better, Line in the noise will be lower, the recording effect will be better.
2, Mic in port: If this is used to connect the microphone recording. But the difference between this port and Line in is that it has a preamplifier, in other words the microphone itself has a small output power, so it is necessary to have an external amplifier to amplify the audio signal. This port is to play this role. Interested friends can try to connect your microphone directly to Line in port recording … … no sound or sound is very small right ?! reason is very simple, the microphone signal is not amplified, the natural effect is not good.
3, in particular, to emphasize that: the external electric guitar, synthesizer such audio equipment can not be directly connected to the Mic in the recording, because this connection is light when the recording signal will be severely cut top distortion, while the damage to the sound card Class hardware device!
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