  
Q. Audio fails in two-way communication system
A. Two-way communication can be done only when the audio recording in DVR is correctly done.
You can improve the sound by setting up audio system as follows.
sound tap |
Sound chart: No sound. |
volume tap |
Speaker set-up / high / quality Hardware speed : max ...............sample speed conversion: good |
audio tap |
Play back volume - microphone / line input ‘mute’, volume ‘max’ . Recording volume - microphone / line input .............. Microphone high set-up: select Boost(a sound card with amplifier) |
If you use an IP in an environment where DVR and Client are installed,
you should set up a port-forwarding function or DMZ at IP setting.
Check the condition of audio port (DP : 49557,49559) when you use a port-forwarding.
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