Loudest Sound Ever?

BTW I think our avatars are good company..............

Regards,
barts

Black holes may burp, perhaps that is what was heard….

As I have gotten older, I have less tolerance for very loud music.  At a rock concert, I have been known to pack my ears with cotton so that I can enjoy the music without grimacing in pain.  At home, my listening level is low-to-medium — definitely lower than probably a lot of other members here.  Only occasionally will I listen at louder levels, and usually that is when driving in my car. 

Black holes do not burp. You are maybe thinking of Hawking radiation? 
http://scholarpedia.org/article/Hawking_radiation

        "Technically the conditions prior to the Big Bang are undefined."

                  Factually: no one knows the Big Bang happened.

                         That's why it's referred to as a, "theory".
 
              ie: Hawkings works = Theoretical Cosmology/Physics.

https://www.newscientist.com/article/2053929-a-brief-history-of-stephen-hawking-a-legacy-of-paradox/ (RIP)

I was sitting one time in the front row at a Robin Tower concert ,I could hear after the concert....When I was young we would go to a concert and then take the NYC subway home both are really loud.Another time we were having lunch at my grandmother's house it was a ranch and the house next door blew ,and man that was loud.Gas explosion...

F22 Raptor sitting in place like helicopter, nose pointed straight up, wow!
Long term loud would have been Mitch Ryder & Detroit Wheels, standing directly in front of speaker stack, stoned and drunk.

Bassnectar show at Red Rocks 2017.. peaks at 110 dbs.. Made Red Rocks change their rules on volume and Bassnectar was banned for life.. 

Second loudest: 10 Billion Butterfly Sneezes...

P-51 race plane!

Me. After reading the prices of high end gear…

In '69 I worked the summer for Marriott Corp, on one of those trucks that rises up to the plane to swap out food service stuff. We spent 1/2 the time just sitting near the runway, waiting for the plane. We weren't issued ear protectors so really got a close up experience of jet noise.

The 2 loudest were the Boeing 707s (various configs had been in use for years by then); and the then-brand new 747. The 707s had sharper, more painful sound (extremely loud engines) and the 747s had deeper, more menancing bass sound (bigger planes & engines).

Many times we sat in that truck buffeted by sound that felt like a storm (the truck shook like it was). No doubt helps explain my constant tinnitus...

....back in my Oaktown Era, spouse, self, and an old fm/GF jumped on our m/c's  and caught the takeoff of the Concorde doing it's 'Round The Globe' Very exclusive flight from OAK.

End of the runway, close as poss.....

!?*!!!!......"Uh, wow....." (followed by expletives....)

Not only LOUDER THAN (*).....FAST 
...you're going somewhere

STS-107 Space Shuttle launch from astronaut family viewing stands approximately 3 miles from launch pad. The low frequency sound waves were so powerful, you could feel your internal organs vibrate and the higher frequencies sounded like a loud crackle.  

Krakatoa

The Krakatoa explosion was heard 3000 miles away. It ruptured eardrums 100 miles away.