LAIA TP-100 Administrator's Manual page 60

 Possible Reason
The frequency of the light source in the room causes the image of the camera to
flicker.
 Solution
Adjust the corresponding anti-flicker value according to the frequency of local AC.
 Problem 4
The terminal has no audio input.
 Possible Reason
1) Microphone input or linear input is not enabled.
2) The audio input device is abnormal.
3) The audio input gain is small.
 Solution
1) Select "Settings > Audio > Audio Input" to enable microphone or line in input.
2) Select "Diagnostic > Local audio loopback" and enable Local Audio loopback
test to test if the local audio device is normal.
3) Select "Settings > Audio > Audio Input > Line in digital gain" and press "+" to
increase the audio input gain (default value is 8).
 Problem 5
The terminal has no audio output.
 Possible Reason
1) HDMI-1 audio out and Line Out, etc. are not enabled.
2) The audio output gain is small.
 Solution
1) Select "Settings > Audio > Audio Output" to enable HDMI-1 audio out and
Line Out, etc.
2) Select "Settings > Audio > Audio Output > Audio output digital gain" and press
"+" to increase the audio output gain (default value is 8).
 Problem 6
After the terminal is on, the opposite end has an echo.
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