Loudest ever was the giant steel and concrete horn used by NASA to (I guess) simulate what effects the sound of a huge rocket (like the Saturn V) would have on the surrounding area.
It was made at the Marshall Space Flight Center in Huntsville, AL.
The max output SPL was a lethal 210 decibels.
From the Guiness Book of Records:
"The loudest noise created in a laboratory is 210 db or 400,000 acoustic watts reported by NASA from a 48 ft steel and concrete horn at Huntsville, Alabama in October 1965."
It was made at the Marshall Space Flight Center in Huntsville, AL.
The max output SPL was a lethal 210 decibels.
From the Guiness Book of Records:
"The loudest noise created in a laboratory is 210 db or 400,000 acoustic watts reported by NASA from a 48 ft steel and concrete horn at Huntsville, Alabama in October 1965."