Hi all

I'm working on a generative music system. My system creates a stream of midi notes that I can play through any midi synth.
The problem is that some times the system plays a note that is still playing and this create an unwanted sound effect (like a very short - staccato note).

I trying to figure out how to solve the problem!
I think I need to know what are the notes the system is playing at every time, so I can check if every new note the system is going to play is similar or different from those notes.

Do you know if exist any externals or patches to solve this problem?

Do you have any idea about how to solve this problem?

Alon

My first thought would be to create a list of notes playing and append to it on note on and delete from it on note off. I am away from PD right now so I can't test my theory but it seems workable.

-Jon

perhaps a simple way around this is to automatically always send a note off message (velocity = 0) right before every note on.

The weirdness of playback (Staccato) , however, I would imagine is a complication with the midi instrument, not with the algorithm that's sending the messages.

Than you for the suggestions!

Also my first idea was to create a list of notes playing, but the management of the list seems to me quite complicate in comparison to the real complexity of the problem.

I will try the simple way to send a note off message before every note on.
The drawback here is that I will send a lot of useless note off messages because the problem occurs not very often.

But I need to solve it because its musical inconsistency is very annoying.

[midiflush] might simplify sending note-offs.

@arif said:

The weirdness of playback (Staccato) , however, I would imagine is a complication with the midi instrument, not with the algorithm that's sending the messages.

My way to check whether notes are sent wrong or if it is a problem with the instrument is to connect Pd to Rosegarden via JACK, redirecting Pd midi output to Roregarden input. You can then record a midi outcoming from Pd and analyse it in Rosegarden.

KMidiMon (http://kmetronome.sourceforge.net/kmidimon/) should let you look at the data in realtime without having to record first.
On windows you can use midi ox (http://www.midiox.com/)

-Jon