I just installed audio cleaning lab and it won't play songs. I loaded an audio file and when I hit the space bar or play button the vertical line that scans over the track didn't even move. I loaded a previous project and it did the same thing. Here's the specs on my machine:
Dell Inspiron 7506 running windows 10
Audio Cleaning Lab 3 25.0.0.43
11th gen i7 processor
16 GB Ram
What you are describing suggests that SFACL 3 cannot find or use a suitable audio driver on your system.
So, go to Options>Playback parameters (shortcut P) and check what is shown there. Make sure it is set to play out to whatever audio output you have.
If that doesn't help, please post a screenshot of that Playback parameters screen, along with the screen you see if you select File>Record.
HTH
Jeff
Forum Moderator