Microphones

Select the microphone you want to listen to audio from.

If the Microphones list displays No microphone hardware, your computer does not have the required hardware for playing audio from the surveillance system. Typically, this occurs because your computer does not have an audio card installed. If the list displays No microphone sources, no microphones attached to cameras are available.

Mute

Select to mute either microphones or speakers (muting speakers is only available on the Playback tab).

Speakers

Select the speaker you want to talk through.

If the Speakers list displays No speaker hardware, your computer does not have the required hardware for playing audio from the surveillance system. Typically, this occurs because your computer does not have an audio card installed. If the list displays No speaker sources, no speakers attached to cameras are available.

If your surveillance system has speakers attached to multiple cameras (and you have the necessary rights to access them), you can talk through all the speakers simultaneously by selecting All speakers from the Speakers list.

Talk

Click and hold down the mouse button for as long as you want to talk.

Level Meter

The Level Meter indicates the level of your voice. If the level is very low, you may need to move closer to your microphone or adjust your audio settings in Windows. If the Level Meter shows no level at all, check that the microphone is connected and correctly set up.

Lock to selected audio devices

When you select a camera or view, the corresponding microphone and/or speaker is also selected by default. However, if you want audio for a specific camera regardless of the ones you are viewing, you can select Lock to selected audio devices.

Example: You need to listen and talk to a crime victim through microphones and speakers attached to camera A, but you also urgently need to view cameras X, Y and Z, some of which are displayed in different positions in the view. By selecting Lock to selected audio devices, you can communicate with the victim on camera A while viewing the other cameras at the same time.

List only devices from current view

If your surveillance system contains large numbers of microphones and/or speakers, the lists from which you select microphones and speakers in the Audio pane can be very long. To avoid this, you can limit the lists to only contain microphones and speakers relevant to your current view by selecting List only devices from current view.

Note that in this context, current view also includes any views you have open as floating views and on primary and secondary displays.