Kodicom DN-1808S Manual For Installer And User page 107

If microphone input level is too low, you can amplify the microphone input to increase volume as shown
below.
1
Click Options and select Advanced Controls (if Advanced Controls is already enabled, do not click it).
1
If you do not wish to hear recorded voice, enable Mute as shown on the left.
If the system does not support Microphone boost function, Advanced button will not
appear. If you need to increase the microphone input level, you must acquire more
sensitive microphone.
Kodicom DN Manual
2
3
2
Click Advanced button for
Microphone.
Enable 1 Mic Boost.
107