Increased Volume

A spell that branches across the types, once more, the various ways to get louder are limited by the types of magic used because.... things are like that.

• Using Primordial Magic, it's an amplification of specifically your voice, and maybe the noise you make to scare your enemies. It's real simple and real effective--you'll kill some morale and you'll knock some knees. This can only be cast on oneself.
  
• Using Divine Magic, the spell amplifies all noises the recipient makes at the recipient's will. It's usually used by the caster on the caster, but it can be cast on another person.
  
• Using Warping magic, you end up amplifying the next few noises you make regardless of what they are. Past a certain decibel threshold, it picks the sound and amplifies that. Properly done with the right amount of power, you can concuss someone with it.
  
Psionics can do this, but it's generally not the strong point, and it does it by folding reality onto itself a couple times to build up a very small echo chamber to release that soundbomb, but it's not nearly as effective as just, like, coming up with some other way to get a message across.