MiNT audiodev.xdd

[Tamminen Eero <t150315@proffa.cc.tut.fi>]

> I can run Desktracker MT at 50Khz with an a spectrum analyzer and 
> oscilliscope window both open and still manage to do other tasks (although
> 50Khz tends to slow things down, and 25Khz is usually sufficient for the 
> MOD).
> 
> Any ideas why the sound keeps breaking in and out?  Its as if the mod player
> can't keep the buffers full cause its too slow!  I think the CPU isn't being

Err...  Desktracker (or whatever) has probably all the mod stuff in 100%
assembler, and the smod player is in portable C (it's compiled from the
Linux Asources).  Besides, as it does the output through /dev/audio the
converted sound blocks go through Fwrite before audiodevice can play
them.  You'll notice this even more when you 'cat' samples to /dev/audio
as then there's also a disk read...


> utilized efficiently if DeskTracker can do it (and DeskTracker runs fine
> as a regular GEM program or ACC, and works with MultiTOS as well).

DT doesn't work with STfm, Kay's /dev/audio does :))). (although the
mod playing will take pauses at every frequency...)


	- Eero