[PD] MIDI input problems in PD

Ingo ingo at miamiwave.com
Sun Feb 26 08:28:56 CET 2012

I had the same problem with Windows XP and a RME Hammerfall DSP card using
only the normal [notein], [ctlin], [toutchin] and [pgmin] for a sampling
synth. I don't think it's the midi interface. RME has some of the best
drivers - very stable.

Sometimes after a certain amount of time it started playing notes by itself
and didn't seem to stop anymore. It sounded like notes or melodies that I
had been playing before. Nothing random.

Could it be possible that midi data is written into a buffer that does not
get emptied anymore? Then something might trigger reading out that buffer?

I couldn't recreate why it happened. Most of the time it didn't do it but
every once in a while it did.

I had no problem ever running Nuendo for days on that same machine
programming midi. The same Pd patch was doing fine on a Linux computer after
switching to Linux.


> -----Ursprüngliche Nachricht-----
> Von: pd-list-bounces at iem.at [mailto:pd-list-bounces at iem.at] Im Auftrag von
> Miller Puckette
> Gesendet: Sonntag, 26. Februar 2012 00:04
> An: Villa Anna
> Cc: pd-list
> Betreff: Re: [PD] MIDI input problems in PD
> I haven't seen this problem, but I have to admit I don't think I ever
> ran MIDI into a Windows machine for more than 2 hours at a time (back
> when I acually used MIDI Windows itself wasn't stable enough to run for
> that long at a time :)
> It's hard to know whether this is the MOTU driver misbehaving in windows 7
> or somethig with Pd itself - my only suggestion would be to try either
> (1) switching interfaces to something more modern than 828MKII or (2)
> try using some other software to see if the problem is specific to PD.
> cheers
> Miller
> On Sat, Feb 25, 2012 at 11:03:32AM +0100, Villa Anna wrote:
> > Dear list,
> >
> > I have problems with Midi input in PD.
> > I use Windows 7 and make use of a Motu 828MKII soundcard.
> > I receive MIDI via a polytouchin object (make use of FSRs and a coridium
> > armmite to translate pressure on the FSRs to Midi messages).
> > All goes fine in the beginning, but sometimes after a while (f.e. 2
> hours)
> > my Midi input starts to be random (FSRs trigger that are not supposed to
> be
> > triggering). If I restart PD everything is back to normal. Any idea what
> > the cause of this problem might be?
> > It's an installation project so it is difficult to restart everything
> from
> > time to time.
> >
> > Thanks in advance for your help!
> >
> > Laura
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