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Sound cuts off intermittently mid-experiment #14

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
What steps will reproduce the problem?
1.
2.
3.

What is the expected output? What do you see instead?
After an undetermined number of runs, the sound stops (i.e. the experiment 
continues but nothing is played).  No error messages appear, making this hard 
to "document"  We have found this problem on OS builds 10.7.5 and 10.8.3, but 
it has never occurred during literally hundreds of runs on 10.6.8.

We have tested this using two builds of our software - 151 (our most recent) 
and 38 (which we have continued using since it doesn't have the crash issue 
described in issue ID #1.

We have observed this issue both when MIDI devices are hooked in and when they 
are not.  

Please use labels and text to provide additional information.

Original issue reported on code.google.com by schutz.m...@gmail.com on 11 Oct 2013 at 1:12

GoogleCodeExporter commented 9 years ago 
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GoogleCodeExporter commented 9 years ago 
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GoogleCodeExporter commented 9 years ago 
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GoogleCodeExporter commented 9 years ago 
Summary: Running build 151 of the rhythm experiment on the newer Mac Operating 
systems (OS 10.7 and later), we find the sound cuts out mid-trial.  This 
typically occurs for only a few trials within an experiment (and not in every 
run of the experiment).  When this happens, oftentimes the following trial will 
be entirely silent. After this, the sound returns at the start of later trials. 
  This issue sometimes occurs multiple times within a single experiment.

 I’ve attached a properties file that we used in the testing (note – we tested this with speedMode=false, but in principle this should work fine with speedMode enabled, which makes testing a lot faster).  I am also attaching a zip file with notes and logs from each of the runs referenced above, as well as a summary of the issue in a Word document.

Also - just to clarify this is the most critical issue we are facing, since I 
have purchased 3 new laptops for use in our off-site testing.  These are 
running 10.8, and so we are currently unable to do offsite testing due to the 
silence issue (which came up on 8/11 runs combining the 10.7 and 10.8 testing). 
 We have been invited to test at the major international percussion conference 
in Indianapolis in mid-Nov, and we are set to do a “trial run” at the 
University of Toronto on Oct 25th.  Therefore this is both important and 
time-sensitive, so I’m trying to get all this info in ASAP.

Original comment by schutz.m...@gmail.com on 17 Oct 2013 at 2:07

Attachments:

GoogleCodeExporter commented 9 years ago 
Basically, this issue appears to be a systematic issue dealing with Java, 
Apple, and MIDI. We did manage to reproduce the sound dropping, and implement a 
partial solution. 

Summary of current solution:  
- Download and install SimpleSynth, which is included in the DropBox folder.
- Start SimpleSynth, and optionally add a midi sound bank, then let it run in 
the background.
- Then use the build labeled 'RhythmExperiment-g.zip' (it must be started after 
SimpleSynth, so the program can find this extra synthesizer). In the setup 
screen find the device IDs for Gervill and SimpleSynth, using the "List and 
Test devices" button and then clicking "List MIDI Devices".  Specify Gervill as 
the tone synth and SimpleSynth as the tap synth. (Tap source can be specified 
as well if you are using an external device for tapping). 

With this setup, we have not been able to reproduce the cutout through many 
trials. 

Additional notes about working to fix this issue are included in the attached 
file.

Original comment by zach.br...@datamininglab.com on 23 Oct 2013 at 8:28

Attachments:

GoogleCodeExporter commented 9 years ago

Original comment by guse...@datamininglab.com on 28 Oct 2013 at 11:24