Sound only plays on some trials and not others

Online experiments
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#1

Description of the problem: In our experiment we use a sound to cue participants to an upcoming visual stimulus. On most trials the sound plays correctly. On other trials the sound does not play. I cannot identify a pattern for the playing or not playing of the sound, it seems random. How can we solve this.

Here is the experiment URL: https://run.pavlovia.org/prdlab/prdlab_compelled_response/html

I think this is a link to the code on the gitlab for this experiment. https://gitlab.pavlovia.org/prdlab/prdlab_compelled_response/blob/master/Compelled_Response_GL3_blocks2.psyexp

Please let me know if it does not provide access to see the code and how I might provide that. Because the sound plays on some but not all trials, this seems like a code bug. Thanks for your help.

#2

Could you share the GitLab repo of your experiment? This page explains how. My username is: tpronk

#3

Thanks Thomas.

I set the project visibility in general settings to public.

Here is the gitlab link, https://gitlab.pavlovia.org/prdlab/prdlab_compelled_response

Let me know what else you might need. Your help is greatly appreciated! We feel so close to running this experiment online, which has been a long time coming.

#4

Hi, did you ever find a solution to this? We are facing a similar problem right now. Increasing numbers of missing sounds as the experiment progresses… Thanks! Donna

#5

Hi @thomas_pronk if you were able to help with this issue, could you also take a look at our current problem here: Audio stimuli / sounds cannot be heard on some trials, gets worse as experiment progresses - #3 by Hera We would really appreciate any help! I don’t think our audio stimuli are too large, and there are only 4.

#6

Sorry, since my time at OST, PsychoJS has been improving so much that my knowledge on online sounds is rather obsolete. I do have two general recommendations:

  • Use the newest version of PsychoPy/PsychoJS
  • Preprocess your audio file as described here