Sound monitor or surveillance microphones are a must have for a complete monitoring solution. Some IP cameras equipped with built-in microphones. These cameras are typically more expensive and don’t offer the same audio quality as a professional security camera microphone. Some network cameras have audio-in to record an audio device but don’t have a built-in microphone. Audio surveillance microphones can be added on to any security camera and surveillance system.
There are two different types of microphones: an in line surveillance microphone that shares a DC power supply source with a security camera, and a stand alone surveillance microphone that comes with its own power source. The stand alone surveillance microphone does not need to be located near any security camera. Because the in line model leverages the same power supply as a security camera and because an audio, video, power plug and play cable is used in conjunction with the in line microphone, the microphone must be located close (within about 2 feet) of the security camera that it shares the power source with.
Depending on the type of security system, a microphone can interface with a camera or DVR using two methods. First, An RCA style connector can be used to connect the microphone to a DVR. Second, a 3.5mm audio jack called a phone connector, can be used to connect it to an IP camera. Microphones are used in several types of applications.
Sound Monitor Applications
A security camera microphone can be installed inside interrogation room at police station or it can be installed at office where customers are dealing with directly with employees. IP cameras with built in microphones are mainly for indoor use. For applications which require outdoor audio recording, an audio enabled IP camera with a weather resistant microphone is recommended. Some applications require industrial microphones. This type of microphone combines ruggedness and audio quality to last long while recording high quality audio to a DVR or network video recorder. Locations with a lot of noise, a security camera microphone with a built in equalizer is useful for pulling conversation out of noise which includes industrial machinery.
A microphone can be installed in a grocery store for when a verbal exchange between a customer and employee needs to be reviewed. Some microphones have built in speakers. This is used when a drive thru security camera system also needs to record audio on the other side of a window for example. A user sitting inside of an office can interact with a driver using a toggle button using both audio and video. Banks use audio microphones to assist customers when deposit checks at their drive through branches.
Audio Surveillance Law
Before installing audio surveillance microphones in public facility, home, or business, we recommends that you understand all local laws in regards to audio surveillance to avoid any non-compliance. It is probably best to consult your attorney before completing your audio surveillance equipment installation. Some country require companies notify their customers that they are being recorded. Check local laws for more information. Although microphones are simple devices, there are many options available. Let one of our specialist help you decide which type of microphone is right for your surveillance system.