Does sound get louder as air pressure increases?

[dighn]

well if the air is denser from the higher pressure(assuming same temperature etc), the same amount of movement would contain higher energy so i suppose yes

 

[Shockwave]

The loudest man made sounds ever created were by the Navy, underwater.
Higher density is a giood thing for making louder sounds.

 

[AlienCraft]

Originally posted by: Jmmsbnd007

Originally posted by: cheapbidder01

Originally posted by: Jmmsbnd007
I know that as it decreases it gets quieter, but does it work vise-versa?

Hmm, so if we decrease the air pressure to the point where everything is quite, then increase the pressure back up, everything would remain quiet since it does not work vise-versa. Librarians will be thrilled.

Sigh, I was just being inaccurate. I meant to say something along the lines if we increased the air pressure to double the current pressure (assume maybe... 30 psi from 15), would that double the volume of the sound? /me expects a volume vs pressure debate now

Do not confuse VOLUME of container with Sound Volume ( More accurately called Sound Pressure Level) Given an equal input level from the source, the Sound Pressure Level has to increase relative to the other example.

 

[AlienCraft]

Originally posted by: Shockwave
The loudest man made sounds ever created were by the Navy, underwater.
Higher density is a giood thing for making louder sounds.

The loudest sounds created continuosly are created by NASA, in testing components for space flight. The roar of a Saturn V Booster is reported to be physically destructive to some items, thus rendering them useless for space flight.

 

[AlienCraft]

Originally posted by: Eli

Originally posted by: LongCoolMother

Originally posted by: shimsham

Originally posted by: Eli

Originally posted by: spidey07
this must be news to me. why on earth would sound pressure change depending on air pressure?

I'm not exactly sure, but does it have to do with the density of the medium?

Hmm.. question, what happens to sound in space? Would it be hard to hear in space? Impossible?

in space, no one can hear you scream? or something like that....:beer:

no atmosphere in space (practically a vacuum). theres nothing for soundwaves to travel through.

That's what I thought.

So then what happens to the sound energy in space? Does it just dissipate a few feet or meters(or inches?) from the source?

I would think that if there is any air surronuding the source, say the helmet , it would be transferred to whatever is physically surround it. To mean, if you put your ear up to it, you would hear something, if not physically connected, you would hear nothing.
Kind of like tapping out morse code on the water pipes< Think old time prison movie......

 

[NeoPTLD]

Originally posted by: notfred
<blockquote>Quote
Originally posted by: Jmmsbnd007<brWell, obviously, it goes back up. But I was wondering if above-ATM pressures would amplify sound to a higher level.

What significance does the number 1.0ATM have? It's completely arbitrary selected as a human measurement only because it's common around sea level on this particular planet. It really has no significance in physics.[/quote]

It just makes it easier to easier to work with numbers and some equations are already designed to work with atm as the standard unit such as PV=nRT

Literature definition of 1.0atm is 760mmHg. Of course, absolute actual pressure is always varying.