Hey everyone: I’m about to run an experiment with a large number of videos so my total resource file is large (~1GB). It takes about 10-15 min to load all the resources in the U.S., and with a vpn (I’m now in China) it could take more than an hour. I wonder if there is a way to compress the videos …

I’ve got a tip on how to reduce the size of the videos, which could also help in ensuring that they play without problems on various browsers. See this guide: Media formats suitable for online studies — PsychoPy v2021.1

Hello! There are a few possible options here (heads up that dynamic loading of resources should be available in the new release!) but as another possible solution would it be appropriate so consider embedding videos from, Youtube, OSF or vimeo? There is a demo of how to do that in the brooks templat…

I realised that I hadn’t actually added the Brookes template to my list of online demos – but it’s there now.

my bad I assumed this was where it was! thanks for adding!

Hi Becca–thanks for sharing. I have a quick question: Will updating to a new Psychopy version cause some problem to the old program (like some of the code need to be modified…)? I’m hesitating whether to download the newest version.

Understandable concern, and I cannot promise it won’t (you are right to have hesitance over beta releases). Before making any suggestions there- could you tell us more about your study? e.g. do you want the videos to autoplay - so how long is each video? it will be easier to suggest if embedding a h…

The experiment includes two parts. In the first part I will present subjects with sequences of short videos (1~6s, video will autoplay and the duration is defined is the condition file). Subjects will simply move mouse on the slider to report emotion ratings on the videos throughout each sequence (I…

Do the videos need to autoplay? or can participant press play on each video?

Synchronizing and loading large resource folder (with videos) online

Online experiments

Becca June 4, 2021, 2:59pm 5

oops it’s here Embedded YouTube video success story

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Synchronizing and loading large resource folder (with videos) online

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