There are two issues with the recording of taps (the other is Issue 25). There
is some common information pertinent to both, which is included at the end of
each entry.
Case 1 - If a participant makes around 33 or more taps, the program hangs (i.e.
the trial can’t complete since the buttons are still greyed out). This issue
is concurrent with the issue 25 where no taps are recorded (see Case 2). That
is, if the program is correctly recording participant taps, making 33+ taps
will not hang up the program. Only when the program stops recording participant
taps can it hang up, even though the taps are not registering. Additionally, if
in the 2nd trial we make less than 33 taps, the program does not hang (although
these taps are not recorded). The relevant files documenting this instance of
taps that are failed to be recorded but do not cause the program to hang are
included with issue 25.
Note: if the suppression window is being used (which we do by default, the
current value is suppressionWindow=50), then not all taps are registered to
tapping file(…Taps.txt). This is exactly what it is designed to do (hitting
the pad often causes “double taps” and we want to record only the first of
these). However I’m mentioning it here since it appears that all of the taps
(suppressed or otherwise) contribute to this hanging issue. Perhaps a certain
number of taps fills a buffer or something.
--- Common information copied over from issue 25 ----
To try and narrow down the number of variables to consider, we tested a variety
of builds on a variety of operating systems. Builds 222, 178, 159 all display
this problem when running 10.9 (we’ve tested 10.9.2 and 10.9.3). And we’ve
observed this when using either a MIDI keyboard or our (more typical) drumpad
setup. We have not seen this problem when using build 222 on 10.6.8 and/or
10.8.3. Therefore it appears the issue is one of changes to the OS in 10.9.3.
Currently, we have moved to 10.9.2 for most testing, but kept a few
“legacy” computers running 10.6 for compatibility with the older versions
of this software (which used Apple sounds that were not longer accessible in
later OSs). To streamline operations we decided a while back to pick a new
“target” OS and then just focus on that. I need to purchase some new
computers soon, and it appears Apple is now up to 10.9.4! I’m fine up
updating the newer computers to a newer version of the OS - obviously I just
want to make sure the MIDI stuff works OK there.
Original issue reported on code.google.com by schutz.m...@gmail.com on 4 Jul 2014 at 7:53
Original issue reported on code.google.com by
schutz.m...@gmail.comon 4 Jul 2014 at 7:53Attachments: