dB Drag Racing

by **Djembe** » Mon Jul 30, 2012 2:06 pm

From Wikipedia:

"dB drag racing is a competition rewarding the person who can produce the loudest sound inside a vehicle. The "dB" means decibels of sound pressure level (SPL). In these competitions, Sound Pressure Level (SPL) of 155 dB can be reached, and it is not unheard of to see more than 160 dB as well. [1]

Competitive vehicles can range from a small vehicle with a single amplifier and subwoofer up to a large van with dozens of amplifiers and subwoofers powered by dozens of car batteries and with upgraded electrical wiring and alternators.

There were 10,000 competitors in 2003 and 300 "races". U.S. National Championships were held in Tennessee.

During a competition, the vehicle must be driven 20 feet. Nobody is allowed to sit in the vehicle during trials because injury would be certain. The vehicles are sealed tight to maximize containment of the sound energy for the decibel level meter. The competitor stands away from the vehicle with an on/off switch control while a computer voice announces the stages for the "races". The test tone consists of a very short resonating tone between 30 Hz and 70 Hz, called "the burp"."

http://www.youtube.com/watch?v=HdX-CsrcxmI

by **rob** » Mon Jul 30, 2012 3:33 pm

on a doco last night on SBS where a Sperm whale was dissected. They claimed that the ticking noise the whale generates to use in echo location is up to 200dB ...

by **jkhuri44** » Mon Jul 30, 2012 3:39 pm

lol Blair...have you been to one of those before?? they are ridiculous...i've been to a few....those systems push bass to all fuckery.

by **Djembe** » Mon Jul 30, 2012 4:17 pm

No I haven't been to one, and am not in a hurry to attend one either.
I am just bemused by the activities us humans indulge in.

by **Manning** » Mon Jul 30, 2012 5:07 pm

Djembe wrote:I am just bemused by the activities us humans indulge in.

http://en.wikipedia.org/wiki/Nathan%27s_Hot_Dog_Eating_Contest

by **audioio** » Mon Jul 30, 2012 10:52 pm

Last night, ABC put on the episode of This American Life which had db drag racing:

http://www.thisamericanlife.org/radio-archives/episode/279/auto-show

by **rick** » Tue Jul 31, 2012 12:09 pm

i was a judge at one once

i am still giggling

by **jkhuri44** » Tue Jul 31, 2012 12:18 pm

3, 2, 1....

BRRRRRRRRRRRFFFFFZZZZZZZZZZZZZZZZT!

woooooooooo!

170dB

Thats the summary of how the day goes.

dB Drag Racing

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