Edge ED-DVR12004 - Audio Output

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Figure 3-2 ED-DVR12004
3.6.2 Audio Output
The audio output signal parameter is usually over 200mv 1KΩ (BNC). It can directly connect to low
impedance earphone, active sound box or amplifier-drive audio output device.
If the sound box and the pick-up cannot be separated spatially, it is easy to arouse squeaking. In this
case you can adopt the following measures:
 Use better sound pick-up with better directing property.
 Reduce the volume of the sound box.
 Using more sound-absorbing materials in decoration can reduce voice echo and improve acoustics
environment.
 Adjust the layout to reduce happening of the squeaking.