Originally Posted by alexh
All optical drives I have owned in the last 20 years have had a TTL serial digital output for CDDA.
It would appear from what Amigkit has said that the Prisma has a digital input for digital mixing inside the DSP?
I wrote about format files the CD-Audio. DSP decoder does not support import raw PCM files, Prisma subsystem must fly add WAV header.
Mixer do what else, enough to read about audio codec in Prisma and see that it is the LINE1 LINE2/MIC (after all, it's obvious, that there is no problem with connecting external sound and mixing).