[linux-audio-user] Serial midi trouble

[Gerrit Niestijl]

On Fri, May 05, 2006 at 01:43:57PM +0200, Ismael Valladolid Torres wrote:
> Gerrit Niestijl escribe:
> > On Thu, May 04, 2006 at 08:04:42PM +0200, Clemens Ladisch wrote:
> > > Gerrit Niestijl wrote:
> > > > I am having some problems connecting my Roland XP-30 synth through the
> > > > serial port. I can send midi data from the synth to the computer (eg
> > > > record them with seq24) and i can send midi data from the computer to the
> > > > synth (eg play the synth with vkeybd). But i as soon as i connect the
> > > > serial midi input with the serial midi output (the synth has its 'local'
> > > > set to  'off') and hit a note on the synth there appears to be a feedback
> > > > loop, because an endless amount of midi notes is being generated, flooding
> > > > my synth.
> > > 
> > > Apparently, the synth has "MIDI Through" or something like this enabled.
> > 
> > Hm, that does not seem to be the case. When i connect the synth with the
> > same settings to a harware sequencer (through midi cables) everything
> > works like expected.
> > 
> 
> I think it could help trying MIDI connectors and not the serial cable.
> 
> I remember having MIDI problems with a Roland XP-30 connected to my
> computer via SB-Live MIDI connectors that were solved simply using a
> better MIDI interface. The XP-30 sends soooo many aftertouch events
> --this can be configured, though!

Indeed, i discovered that my cmipci card has a game port that can be used
as midi port through a module parameter, just like the SB-Live. I even
have a suitable midi cable for it. First tests show that it works well.

But i am considering bying a better midi interface though, with at least 2
in/out ports, so i can connect other equipment as well. It will have to be
a usb thing, because i am out of pci slots. Any suggestions are welcome,
by the way.

-- 
gerrit