[PD] sysex messages

mario buoninfante mario.buoninfante at gmail.com
Wed Mar 14 21:28:39 CET 2018

Hi Miller,

yap I'm using ALSA.

btw, I had a look at the source code (I want to clarify I'm not a C 
programmer :) ) and from what I found in x_midi.c and s_midi.c, it kind 
of make sense that [midiout] returns 1 byte at time.

it seems to me we're missing a way to detect outgoing sysex messages 
(maybe having a dedicated object could help), so there's no way to 
collect a sysex and send it out in one go (ie having an array to 
return). I apologize for my trivial description of the "problem", but 
this is what I think is causing this behaviour.



On 13/03/18 04:37, Miller Puckette wrote:
> Hi Mario -
> Perhaps you said this in the previous message which I missed... are you
> using ALSA MIDI system or OSS?
> MIDI support has always been a problem in Pd... largely because I don't have
> a lot of experience with it.
> cheers
> Miller
> On Tue, Mar 13, 2018 at 12:04:00AM +0000, mario buoninfante wrote:
>> Hi,
>> I ran few more tests on Linux trying to understand what's going on with
>> [midiout] and sysex messages.
>> I discovered that it's not just about sysex. I'm monitoring MIDI from Pd
>> with /KMidimon /and /GMIDImonitor/, and I noticed that also sending Note On
>> messages with [midiout] seems to be in some way different then sending the
>> same message using [noteout].
>> when Note On is sent using [midiout], this will spit single bytes that are
>> recognized as single byte sysex messages by the MIDI monitors!!!!!
>> has anyone ever experienced the same?
>> cheers,
>> Mario
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