You're right JonJ. (former film sound editor here) The sound is most likely just a drop at near normal speed positioned into sync through editing. To film a sychronous sound track would require a completely quiet room (baffled to avoid the high speed camera noise), a very sensitive mic. and a digital recorder running at about 67 times the 48kHz sampling rate of video standard sound- approximately 3.2 MegaHertz- not impossible to build but expensive and then consider that it would play back at 67 octaves below the normal pitch of the sound- this wouldn't just sound like thunder; it would feel like an earthquake.
Posted by: Pete Chapman | Nov 11, 2009 1:08:38 PM
Mesmerizingly cool. I love it.
By how much is the volume of each subsequent drop reduced?
Posted by: QuinnO | Nov 12, 2009 9:17:43 PM
Very, very cool. I love when people find out new and wonderous things about the nature of matter.
But... my one contrary thought was when they mentioned it happening billions of times in every rain storm. They are dropping the water from mere millimeters above the water, whereas the speed of a raindrop is much greater. So, how much does the velocity of the drop affect the water tension and air buffer between a body of water and the drop?
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Comments
I assume that the slurping sound effect was added for dramatic effect, not picked up by a tiny supersensitive mic.
Posted by: JonJ | Nov 11, 2009 12:31:34 PM
You're right JonJ. (former film sound editor here) The sound is most likely just a drop at near normal speed positioned into sync through editing. To film a sychronous sound track would require a completely quiet room (baffled to avoid the high speed camera noise), a very sensitive mic. and a digital recorder running at about 67 times the 48kHz sampling rate of video standard sound- approximately 3.2 MegaHertz- not impossible to build but expensive and then consider that it would play back at 67 octaves below the normal pitch of the sound- this wouldn't just sound like thunder; it would feel like an earthquake.
Posted by: Pete Chapman | Nov 11, 2009 1:08:38 PM
Mesmerizingly cool. I love it.
By how much is the volume of each subsequent drop reduced?
Posted by: QuinnO | Nov 12, 2009 9:17:43 PM
Very, very cool. I love when people find out new and wonderous things about the nature of matter.
But... my one contrary thought was when they mentioned it happening billions of times in every rain storm. They are dropping the water from mere millimeters above the water, whereas the speed of a raindrop is much greater. So, how much does the velocity of the drop affect the water tension and air buffer between a body of water and the drop?
Posted by: Arlo | Nov 13, 2009 4:08:29 AM
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