Essentially, I am having issues with my video stimuli playing in an experiment. The video stimuli is approx. 32 seconds long, but when I run the experiment, it speeds up the video at 5x the speed, causing it to last only a few seconds. During the same routine, I have a separate audio component that works fine, as well as a fixation cross. Nothing I seem to do can stop the video from playing at an advanced speed and I am stuck.
OS (e.g. Win10): Win10 Pro 19045.4529
PsychoPy version (e.g. 1.84.x): v2024.15
Standard Standalone? (y/n) If not then what?: Yes
What are you trying to achieve?:
I am trying to play video stimuli that gives a message to participants. Following the message, participants are required to press a key to move forward with the experiment. This is set to a loop where the video stimuli replays for 72 trials using the same video stimuli, but the audio message is randomized.
What did you try to make it work?:
I have fiddled with the backend changing it from ffpyplayer → moviepy → opencv → vlc to no avail. I have tried changing the start time to begin slightly after the routine (i.e., 0.5 seconds after the routine begins), I have lurked many threads and have not been able to find a solution.
What specifically went wrong when you tried that?:
I do not receive any error message–only the sped up video stimuli.
I am happy to share the experiment and files if that might be helpful for other individuals! Thank you so much!
p.s. my videos are in AVI format and I currently am attempting playback using ffpyplayer as the backend. strangely, my videos only seem to work if I place them at the very beginning of the experiment. However, the experiment cannot be run in this way.