Lost audio signal on Mic/AUX input

tomatosan

New Member
A few days ago, I made an online stream on YT.
The input source was a Phonic MM1202a audio mixer (CTRL room output) connected to microfone input (external microphone) on laptop.
The next source was a Skype conncetion like NDI source.
The other source was a VLC audio (m4a file).

In the OBS, I definied scenes (one for a camera, and one for the Skype), and also definied sources.
The Microphone/AUX (Audio mixer window) settings/propeties change to external microphone.

Sometimes the Microphone/AUX volume meter not showing any signal, and there is not any audio on the live stream.
Then I was change the settings, and there is a signal on the volume meter, and the live stream is OK.
But few minutes later the sigal lost again. Meanwhile I change the scenes to the Skype source and back to the camera.
The Skype use the same audio input source. If the Skype is not active, the signal is OK.

Can anyone knows why lost the audio signal in OBS time after time? Have anyone idea what I did wrong?

The enviroment:
Laptop - HP Probook 650 G4
OS - Windows 10 Pro (21H2)
Sound - Conexant ISST Audio (9.0.278.150)
NDI - Latest NDI 4.9.0
OBS - 26.1.1 (64 bit)
Skype - 8.79.0.95 (application: 15.79.95.0)
 
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