Delay between the sound and the image in video

I’m running an experiment that includes videos. I currently only uploaded one short video (about 10 sec, MP4 file) to complete the experiment build, and there is a significant delay between the sound and the image. I tried looking for solutions but could not find anything that worked. what could be the problem?

I’m using MovieStim3,
python 3.6.6
psychopy 2021 2.3

thank you,

Hello, I have the same problem. Have you solved it?

I also have the same issue with both mp4 and avi formats.
Does anyone know how to fix this?
Psychopy version is 2022.2.1

Hi, from version 2022.2.0, the movie component uses ffmpeg as its default backend which should help resolve the lag between audio and video.