adas DVR no sound warning

Mike

I bought a DUDUAUTO machine and used it with a DUDU ADAS DVR, but there was no sound warning when a car approached very close to me? Is there no sound warning originally?

DUDU-HUANG

Is the ADAS function switched on and correction completed? If this step is completed, try selecting a different sound channel!

Gwinambele

DUDU-HUANG
And how accually you can change sound channel for DVR app?
In DVR app there is no such option.
I have same problem.
In FM radio there is no sound at all.
If i play nothing or use any other music app (YT, YT Music or w/e other then FM Radio app) there are voice warnings form DVR app.