[Beowulf9]

Sounds like someone knocking.

[Oscar in Batangas]

We’re dead, Jim

[Scrambler Bob]

I would make that:

Sounds like Someone knocking.

[rdl6989]

Couldn’t this be the sound of the thing breaking up?

[cowboyusa]

You get the first Leap day post.

[Macho MAGA Man]

(Sounds like someone knocking)

Could have been anybody. I’m going with ‘Paul McCartney and Wings’

Someone’s knockin’ at the door
Somebody’s ringin’ the bell
Someone’s knockin’ at the door
Somebody’s ringin’ the bell
Do me a favor
Open the door and let ‘em in
Someone’s knockin’ at the door
Somebody’s ringin’ the bell
Someone’s knockin’ at the door
Somebody’s ringin’ the bell
Do me a favor
Open the door and let ‘em in, yeah, let ‘em in

Sister Suzie, brother John
Martin Luther, Phil and Don
Brother Michael, auntie Gin
Open the door and let ‘em in, yeah

Sister Suzie, brother John
Martin Luther, Phil and Don
Uncle Ernie, auntie Gin
Open the door and let ‘em in, yeah

Someone’s knockin’ at the door
Somebody’s ringin’ the bell
Someone’s knockin’ at the door
Somebody’s ringin’ the bell
Do me a favor
Open the door and let ‘em in, ooh yeah, let ‘em in
Sister Suzie, brother John
Martin Luther, Phil and Don
Uncle Earnie, uncle Lin
Open the door and let ‘em in, yeah
Someone’s knockin’ at the door
Somebody’s ringin’ the bell
Someone’s knockin’ at the door
Somebody’s ringin’ the bell
Do me a favor
Open the door and let ‘em in, yeah, yeah, yeah, yeah, yeah

[SaveFerris]

(Eerie banging sounds that briefly gave rescue teams hope of saving the Titan submersible’s crew and passengers have been released.)

Maybe if a deep sea current was banging wreckage together

[Getready]

Difficult to rule out...depends on where sound was coming from...could they triangulate it? Did microphone listen to a large area?
That whole fiasco makes me ill...go down 2.5 miles in some smart guys novel non-vetted invention.....just to get a glimpse of the gravesite of others...

[NavyShoe]

People are like, oh my God!

[pigeoninthepark]

I doubt help could have came in time even if so

[nonliberal]

Who cares? I really don’t care if a bunch of billionaires die on a frivolous, expensive trip and have the hubris to ignore the risks. The only reason they are dead is because they had the money that put them there in the first place. None of the rest of us could afford to be that stupid.

[Clay Moore]

Knock knock knocking on Heaven’s door.

[ByteMercenary]

BeeEss - when that plastic crucible imploded the occupants may have had enough time to get the ‘O...’ part of ‘Oh Sh!t’ on their tongue before they were reduced to protoplasm.

[lee martell]

“Bang bang bang on the door, Baby!
##
Knock a little louder!
Bang bang bang on the door, Baby
##
I can’t hear you!”

[Sirius Lee]

So easy a cavesub could do it.