Connecting a microphone to the DVR

A DVR has long been one of the mandatory attributes in a car. It helps to monitor the situation on the roads and is able to resolve difficult situations thanks to the recording function. Most modern models are equipped with an additional connector, which is necessary for a microphone. For correct connection, you must follow several rules for selecting and connecting both components.

Let's figure it out How to connect a microphone to a DVR.

How to choose a microphone

Selecting a device is one of the main tasks. When purchasing, attention is paid to many criteria.

Directional pattern

Not only the final dimensions, but also the radiation pattern are of primary importance.

The highest quality units include those with a cardioid pattern. Such a system creates a certain zone shaped like a heart. Sounds emanating within this zone are completely recorded by the device.

Important! Please note that sounds coming from outside the zone remain unrecognized.

If it is impossible to place objects close to each other, a directional model will do. This diagram resembles a loop that can capture sounds at a much greater distance.

Sensitivity

When purchasing, you should also pay attention to such a parameter as sensitivity.The final indicators of the maximum distance at which the device is capable of recording speech depend on it.

Among the devices you can find a microphone suitable for recording speech and sounds at a distance of several tens of meters. The best option for regular use would be a microphone with a frequency of up to 8000 kHz.

Reference. When selecting household appliances for placement in a production facility or specialized transport, it is recommended to select units with higher frequency ratings.

Cable suitable for connection

The correct cable is of great importance when selecting. Experts recommend stopping on combined coaxial products.

For laying over short distances (up to 300 meters), a thin combined cable is suitable, which is flexible and has a small diameter. This model is SHVEV 3x0.12.

For a larger area, it is better to choose cables with a larger cross-section, at least 0.5 mm. A suitable model is KVK 2V 2x0.5 PVC.

The modern assortment is quite diverse, which allows you to choose other options. However, other models have a rather narrow range - no more than 40 meters. Therefore, the use of such products will be quite impractical.

Advice. When laying cables outdoors, it is necessary to use special outdoor options.

Step-by-step connection procedure

After purchasing all the necessary components, you can begin the connection process.

Connection steps

• We find the red wire on the microphone. It connects to the red wire of the coaxial cable itself.
• The center core of the wire is screwed to the yellow wire on the microphone.
• There are two wires left on the cable: common, power.They connect to the black wire on the microphone.
• Finally, each connection is wrapped with electrical tape. At this stage, the connection directly from the microphone ends.

The power wires are located on the reverse side of the cable. They are connected to the corresponding block. The common and signal are connected to the coaxial wire components.

The final step is to connect directly to the DVR. An RCA connector is used for this. It should be connected to the DVR using the audio input.

To reproduce sound, you need not only a microphone, but also special speakers. They connect to the recording device itself. Please note that an adapter may be required to make the connection.

After a few simple steps, the microphone is connected to the DVR and is ready for use.

If you regularly use your personal car, having a DVR is essential. To improve quality and additional protection, a large range of devices is used, including a microphone. This unit requires special steps when connecting. A few tips and recommendations will help you carry out the procedure correctly.