[PD] Mono synth behaviour

[Al Riley]

I am fairly new to PD and I'm creating a monophonic
synthesizer to be controlled by MIDI keyboard.

MIDI in is not a problem and I've set 'note on'
messages to trigger an ADSR which envelopes the output
from my bank of oscillators. 

The real problem is that it doesn't behave as a mono
synth should because it has no memory of which notes
are being held. E.g. If I play a C and hold it down
then play a D and release it, the synth should go back
to playing the C. But in my setup, the audio just
stops because there is no trigger to the ADSR.

How have people got round this problem before and does
anyone have a simple patch that can demonstrate
'correct' mono synth behaviour?

Any help appreciated,

Al


	
	
		
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