RE: Streaming video

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Streaming video

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nashby	nashby posted 11 Years Ago Topic Details Share Topic
Group: Forum Members Posts: 78, Visits: 159	I have an experiment programmed which shows 4 minute video clips which we had planned to run online using inquisits web hosting. Unfortunately it appears that the files sizes are to large even after compression (if we compress much more the video will be so low quality as to be pointless). As such I am wondering if it is possible to get inquisit to stream the video during the scripts run from a site like youtube or similar as this would by pass those to some extent (we might instead get lag in playback if the video takes forever to load). Any way to do this or other ideas on how people have dealt with this issue in the past? Thanks.
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Dave	Dave posted 11 Years Ago ANSWER Post Details Share Post
Group: Administrators Posts: 13K, Visits: 108K	For the majority of your questions, allow me to refer you to e.g. http://www.millisecond.com/forums/FindPost12642.aspx As for the streaming question: This might -- in theory -- be possible by embedding the online video in HTML and then using the <html> element to have a <trial> display it. However, note that this doesn't solve the actual problem, it merely shifts it elsewhere. Regardless of whether you (a) first download the entire video file and then play it or (b) download it piece by piece at runtime (which is what streaming boils down to), the amount of data that has to be downloaded is the same. The difference is in terms of point of failure. (a) Will fail early and hard, before any data are ever collected, whereas (b) can fail or cause problems at any point while the experiment is running / data is being collected. What if a participant's internet connection breaks down during streaming? What if the stream starts stuttering, thus introducing timing issues? Whether those are acceptable risks to take, will largely depend on the subject matter you are studying and the role those stimuli play in that context.
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nashby	nashby posted 11 Years Ago ANSWER Post Details Share Post
Group: Forum Members Posts: 78, Visits: 159	Well given that most subjects have high speed internet I dont see it being much of a problem. Thanks.
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