I understand it's called a debounce. Not sure precisely what's going on. But if
you want to make sure only one gets through I always use a [sel 1] or [sel 0].
or of course [sel 0 1] followed by [del 10] which only accepts bangs, and
delays the output by 10 milliseconds, which you won't notice. But when it
recieves a bang before the previous one has outputted it restarts the sequence,
result, only one message on each key on or key off.
Hope this helps.
Date: Tue, 15 Jun 2010 12:16:42 +0100
From: [email protected]
To: [email protected]
Subject: [PD] HID double event bug
I filed a bug report some time ago here:
https://sourceforge.net/tracker/?func=detail&aid=3002665&group_id=55736&atid=478070
Just tested this with Pd version 0.42.5-extended-rc2 on Ubuntu 10.04
and it's the same. Basically I get two events for each key press like
this:
[hid] opened device 4 (/dev/input/event4): AT Translated Set 2 keyboard
print: key key_space 1
print: key key_space 1
print: key key_space 0
print: key key_space 0
Thought I'd mention here too as surely this is a bug? Not a major
problem, but it means I always need an [alternate] object or similar.
This then became a problem when working on a patch for two note chords
when the key commands do not always arrive in the same order and some
notes would stay on.
James
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