Audio Mixer Misbehaving

[KCav]

I am running OBS 27.0.1 (64-BIT Windows). I have an MP4 file running in Media Source and there is no sound!
The Audio Mixer shows no activity for Audio Output Capture, but there is activity in Mic/Aux. To determine what
caused the problem I right clicked on Settings and selected Advanced Audio Properties. Auto Monitoring was set
to Monitor and Output. What else could be the cause of the problem? Sound can be heard from an MP4 file running
in a different scene on the computer. What should I do to enable the sound on the MP4 file. I tried delete and restore.

 

[konsolenritter]

If you had sound from a different mp4 file in another scene, did you seen an audio track for this mp4 source within the audio mixer?
That should be the case for your other mp4 file, too. Otherwise check with vlc player outside obs, if that file really contains an audio track.
Any active playing video file source (containing audio) should bring up an additional audio-track within the obs audio mixer.

 

[KCav]

Thank you for replying to my question konsolenritter,

The problem was solved when I right clicked on Audio Mixer, selected Advanced Audio Properties.
I began changing the settings for Audio Monitoring from Monitor only to Monitor and Output. I changed
each item when I changed Media Source that did the trick.