At Mon, 11 Aug 2003 20:52:19 +0200,
jlh wrote:
> 
> 
> Hi all.
> 
> I have a via8233 onboard chip and I'm still not able to play midi files.
> 
> First: Some people told me, the via8233 has no midi-synth.  Is this
> true?

yes.

> This would
> mean, the windows drivers for this chip are doing software-synthesis.  Can ALSA do
> this?  (Yes, I know, timidity can.)

no.  it's not a job of kernel driver.  this should be done on user
space.  hence, timidity (or fluidsynth or your favorite one) is a
right way.

> There is no volume control for MIDI in alsamixer.  Is this normal?

yes (since there is actually no MIDI).

> The file
> /proc/asound/oss/sndstat claims, that there is no MIDI device and no SYNTH device
> present.  But I have compiled the alsa drivers with --with-sequencer=yes.  The 
> modules
> have build and they're all inserted.  I even have the /devfs/sound/sequencer device,
> which disappears, when unloading snd-seq-oss.o.  But when I try to read from it with
> `cat /devfs/sound/sequencer', I get the error `no such device'.

here the "sequencer" refers to "ALSA sequencer", which is a different
concept from the normal "sequencer" program.  it's a MIDI event router
and scheduler engine.  this doesn't mean that you have a software (or
hardware) wavetable MIDI playback engine.


> What's wrong?
 
so, nothing wrong :)

> (BTW, the DSP playback is still noisy, when not playing at 48kHz.)

try dxs_support=3 module option for the recent version (see
alsa-kernel/Documentation/ALSA-Configuration.txt for details).


Takashi


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