This is from Wikopedia:
Autzen is renowned for its crowd noise. On October 27, 2007, during a 24-17 defeat of the USC Trojans, a record crowd of 59,277 fans was recorded at 127.2 decibels (louder than a jet taking off).[5] A similarly-loud 31-27 upset of third-ranked Michigan in 2003 prompted a Michigan Daily columnist to write[6]
“ Autzen's 59,000 strong make the Big House sound like a pathetic whimper. It's louder than ... The Swamp at Florida, The Shoe in Columbus, and Death Valley at Louisiana State. Autzen Stadium is where great teams go to die. ”
Michigan coach Lloyd Carr later said that Autzen Stadium was the loudest stadium he'd ever been in.[7]
In 2006, a Sporting News columnist named Autzen the most intimidating college football stadium in the nation.[8]
Examples of Decibel Sounds for comparison:
Weakest sound heard 0dB
Whisper Quiet Library 30dB
Normal conversation (3-5') 60-70dB
Telephone dial tone 80dB
City Traffic (inside car) 85dB
Train whistle at 500', Truck Traffic 90dB
Subway train at 200' 95dB
Level at which sustained exposure may result in hearing loss 90 - 95dB
Power mower at 3' 107dB
Snowmobile, Motorcycle 100dB
Power saw at 3' 110dB
Sandblasting, Loud Rock Concert 115dB
Pain begins 125dB
Pneumatic riveter at 4' 125dB
Even short term exposure can cause permanent damage - Loudest recommended exposure WITH hearing protection 140dB
Sound of Oregon Fans at the Oregon vs U$C game on 10/27/07 at Autzen Stadium 127.2dB
Jet engine at 100', Gun Blast 140dB
Death of hearing tissue 180dB
Loudest sound possible 194dB
