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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. <br><br>Hope this helps. <br><br><hr id="stopSpelling">Date: Tue, 15 Jun 2010 12:16:42 +0100<br>From: james@4thharmonic.com<br>To: pd-list@iem.at<br>Subject: [PD] HID double event bug<br><br>
<font size="-1">I filed a bug report some time ago here:
<a class="ecxmoz-txt-link-freetext" href="https://sourceforge.net/tracker/?func=detail&aid=3002665&group_id=55736&atid=478070">https://sourceforge.net/tracker/?func=detail&aid=3002665&group_id=55736&atid=478070</a><br>
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:<br>
<br>
[hid] opened device 4 (/dev/input/event4): AT Translated Set 2 keyboard<br>
print: key key_space 1<br>
print: key key_space 1<br>
print: key key_space 0<br>
print: key key_space 0<br>
<br>
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.<br>
<br>
James<br>
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