I’ve encountered a rather annoying sound bug that occurs with a specific track. Once 5 minutes have passed you hear a president ringing that won’t go away.
It may occur with other tracks but this is the one I found. The track is called NAME HERE and is played on level 14.
I have included both the Doomsday recording as well as one from GZDoom. The GZD one still has a weird ringing, that occurs 5 minutes into it, but then it stops.
I’ve also added screen shots of my audio setup; both source ports are using Coolsoft’s virtualmidisynth with Patch93’s soundfont. A common setup for those who like accurate SC55 emulation.