Hi @AJM,
Please don’t apologise - questions are really helpful!
Okay, let’s forget the ISI for now and focus on separating the audio and visual parts of the video. So, let’s assume that we’re starting from the first experiment file (Novel_word_vs3.psyexp) that you sent and that we want to split the salience video in the salience_trial routine into visual and audio:
- Click on the salience video component that’s already in that routine, click on the Playback tab, and check the ‘No audio’ box. This gives us the visual only part of our file:
- Now, add in a sound component (found in the Stimuli component drop-down) and set the start time and duration of that component to match your salience video component. Now, set that sound to be the sound file from your salience video clip. As for the .wav files not working - PsychoPy definitely supports .wav files but if you ever want to move this study online then you’ll want to use mp4 format. It might be worth re-splitting your sound files from the video files. You can do this fairly easily using a free download such as Audacity etc.
Try this out with just this first video to begin with. If it works just repeat these steps for all other videos in your experiment. Another user has had success straight away by splitting the visual and audio files, but one user has had to offset the sound component so that the audio syncs up with the visuals. Do let me know how you get on by separating them first, then we’ll talk about offsetting if we need to!
Thanks,
Kim