QuickTime: You need the QuickTime player to use the "movie" here. Click here to download the free QuickTime Player. 
You can view the articulation of the consonants of English using the "movie" below. Move the cursor around and click on the buttons as they highlight.
NOTE: Recent versions of the Safari browser cause some of the graphics to be displaced.[why?] The ones that I have noticed are (1) the arrows showing airflow for [l], [n], [ng]; (2) the puff of air for [f], [s]. Firefox and probably other browsers should work fine if you have the QuickTime 7 plugin.
Why is this happening? The answer is that Apple computer has made the ridiculously bad decision to build the QuickTime X movie player into the Safari browser. You can't even use the QuickTime 7 plug-in. QuickTime 7 was the best piece of software that Apple computer made. Why they are pushing the piece of crap that is QuickTime X is beyond me!