Originally Posted by JBLsound4645 /forum/post/15435675
I watched the DVD extras I was rather surprised that a few simple plucks of the guitar string creates the disable effect.
I would hardly doubt even at Skywalker Sound that they tried the same idea when mixing the film back in 1993.
I suppose if you placed the plastic cup with a little bit of water and turned the sub upside down and placed it on the dust cap yeah it will vibrate, if not knock the cup over as this is the most part of the area that moves. Or place the sub on the far end of the room and place it on table to see if the water ripples slightly?
Also I don't think the frequency on the LCR and LFE.1 will create the same ripple pattern due to the frequency.
I'll try it out later in the day, doubt I'd get much joy out of it, can't video it with clear enough image, camera is poor for artifice light conditions, I need 200watt light! Still I'll give it spin on DVD later on.
Originally Posted by gpmbc /forum/post/15435992
I used to have a DIY sub with opposing drivers-one being active and the other passive radiator. That thing used to dance I'm sure if I placed a cup of water on top I would have had all kinds of ripples. With a well braced cabinet it will be a lot more difficult. I believe Mark Seaton uses a penny standing on its side to show the solidity with the Submersive.
Originally Posted by Matt1966 /forum/post/15435615
I remember seeing an interview on the special effects they used in that movie to get that perfect ripple in the glass. IIRC They couldn't get it quite right with using just vibrations from an impact, so they placed a guitar string under the dashboard supporting the glass. When they wanted the ripple in the water they would pluck the guitar string.
EDIT: Found it.
Seventh one down.
Anywho, it must be harder to re-create that by placing the glass on the sub. From what I understand most sub cabinets are made so they cut down on vibrations. Putting the glass on the floor probably would have made the glass bounce.