@Dataflow_G wrote:
The underlying DirectSound API will handle audio mixing - all you need to do is configure and run two tasks simultaneously.
this is a great piece of advice - and I am happy to learn something new 😄
Indiana_Bills .vi in Message 6 reminds me of one of my toy projects:
<off topic>
I once build a very crude 2 channel chiptune music generator based on a rhythm and a melody waveform,
focusing on the waveform generation and modification, rather than on the mixing aspect...

actually, it's no real mixing of different audio files, as I generate one audiofile with very different stereo left and right
via "sound output write.vi"
</offtopic>