Speakers! independent outputs
Excellent information Alexis Navarro! I detail the system currently used. DVR cameras are monitored (No problem) the same, is remote, ie from a command center, when implementing the zone selector could you speak from the command center?
If of course if your friend Maikel since the system you install can be next to the DVR, as you know some cameras bring the audio system and you can listen through the same computer or the network and the audio system brings the option of microphone and line outputs, they are the ones I mention use transformer for the outputs of loudspeakers to reach great distances and with a console that is made with mechanical switches you can select which places you want to listen, as the microphone input is used one of excellent quality, these equipments bring these inputs
Microphone and even equalized to be able to parameterize the different types of voices of each person, this system of whispers is simple and economical in itself and since there are the originals of the factory that are the zone selectors and are a little more expensive, your choice which system to choose, the only substitutes you have to lay the shell of each site to the command center where would be the console of selector switches that would go to the amplifier (outputs) would be the microphone in its input and the auxiliary system that can be used to environment is allowed on the site and the
cameras with audio could go to the amplifier or exclusively to the command center. Greetings and success in your project
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