Hey xahmol. This seems to be a complete other story.
I'm using a mp3-player on the userport module for playback.
You need this piece of hardware or emulating via VICE.
This is very easy to implement in the code.
Viewing post in EVIL DUNGEON (C64) - Remastered comments
yes, got your idea. But I cannot find any information about using this in BASIC. The mp3 module makes it very easy to implement and I personally like additional modules to extend original hardware. I always try to support all machines. The module can be self-build, there are infos on the net about it. I don't want a U64 only solution. But thanks for your input :-)