[quote=@Rune_Alchemist]
The way I understand it, what humans perceive is sound is a result of a pressure wave - whether audible or not to the human ear. That pressure wave then creates vibrations as it travels through a medium, thus disturbing it and creating those vibrations. Those vibrations are then translated as 'Sound'. As an example, a Sonic Boom travels at different speeds and sounds vastly different in air than it would in water, which is the result of the pressure wave moving through a different medium.

If that's not how it works then welp, everything I know is a lie and that's how I've always been using this sort of power in my like, ten plus years of RPing and boy do I feel silly.

That said, to make things a bit easier and less confusing, I'll just come up with something a bit more appropriate after I get some food in me.
[/quote]

Yes, sound is a type of pressure wave, but sound is the [i]result[/i] of something, not the causation factor. You could say "She has the ability to cause vibrations that manifest itself as sound" but not say "She has the ability to create waves of sound that manifest themselves as something like an earthquake"

Sound is the [i]result[/i] from the earthquake, not the thing that causes it. I think that's where the confusion lies for me. Your power shouldn't be to [i]manipulate[/i] those waves, it should be to [i]create[/i] those waves. The method you use to create those could then manifest itself as a sound.

I got caught up in the wording where you implied you could change sounds somehow, while in actuality, you're just creating general shockwaves. To call it sound is a bit of a misnomer, in my opinion.

I think laying out the exact science behind a power is the exact wrong way to go about it, though, because if we go into the technicality of how it physically happens, then it becomes a bit too grounded in reality for my taste. Try tweaking it a bit so it's not so scienc-ey.

(Also I might be off-base on some of this- if I'm wrong, apologies. Also apologies if I missed the point entirely. I am not smart cookie.)