[alsa-devel] Testers Wanted: OPL3 hwdep loader interface

Rene Herman rene.herman at keyaccess.nl
Sat Oct 27 01:09:32 CEST 2007

On 10/26/2007 08:55 PM, Rene Herman wrote:

> Working fine. Applied the patches against alsa-{kernel,lib,tools}-1.0.15.
> rene at 7ixe4:~$ aplaymidi -l
>  Port    Client name                      Port name
>  14:0    Midi Through                     Midi Through Port-0
>  16:0    ESS ES1978 (Maestro 2E)          ESS ES1978 (Maestro 2E) MIDI
>  20:0    CS4236B                          CS4236B MIDI
>  21:0    OPL3 FM synth                    OPL3 FM Port
> rene at 7ixe4:~$ cat /proc/asound/hwdep
> 01-00: OPL3 FM
> rene at 7ixe4:~$ sbiload -D hw:1,0 -4 std.o3 drums.o3
> rene at 7ixe4:~$ aplaymidi -p 21:0 music/midi/jzz30xg.mid
> <noise>
> If you need/want me to, I can also test against an OPL2 (AdLib clone 
> card) but I assume that'll be okay?

rene at 6bap:~$ aplaymidi -l
  Port    Client name                      Port name
  14:0    Midi Through                     Midi Through Port-0
  16:0    OPL2 FM synth                    OPL2 FM Port
rene at 6bap:~$ cat /proc/asound/hwdep
00-00: OPL2 FM
rene at 6bap:~$ sbiload -D hw:0,0 std.sb drums.sb
rene at 6bap:~$ aplaymidi -p 16:0 midi/jzz30xg.mid

<same noise>

So, OPL2 same deal. However -- there is a problem after all. With this as 
the source file:


using the old sbiload with the sb and o3 patches respectively, produces:


while with the new hwdep sbiload, I hear:


While much less annoying... something's still missing. The former are how 
they are supposed to be rendered. A problem with the "drums"?


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