Pavlovia doesn't play moviepy stimuli

Online experiments
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URL of experiment: Pavlovia

Description of the problem:
Hello everyone,
I am having some issues to load movie stimuli to Pavlovia.
I have created an experiment where subjects needs to see a video clip (2 minutes) right before the task. It works pretty well offline, but once I load it in Pavlovia, the movie does not start, showing only the first image for the whole duration of the video stimulus, without audio. Stimuli are .mp4, saved in the moviepy backend, last for 120 s and are 25 to 100 MB.
Does any one else had the same problems?

Any suggestions?
Thanks to everyone

2

This guide might help? Media formats suitable for online studies — PsychoPy v2021.3

1 Like
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Thanks Thomas for your suggestion, it was a useful guide. Anyway, I identified the issue as a problem of browser, as Safari automatically block the reproduction of contents with sound, unless otherwise specified. To solve this problem, just go on Safari → Preferences → Auto-Playing and allow the run.pavlovia website to reproduce contents.

1 Like