Auran

Script: Unique

Summary: Auran is a unique language, in that it doesn't require vocal cords to speak, only a set of lungs (or other air-moving apparatus). 

Sounds: Auran is spoken via the inhaling or exhaling of air, and as such can sound like anything from a gentle sigh to a savage hurricane. All meaning is conveyed by the speed, intensity, and amount of air being inhaled or exhaled. An extended conversation in Auran could easily cause a normal humanoid to exhaust their lungs, faint, and potentially even asphyxiate themselves. It is very common for people learning Auran to think that they can hear secret messages in the blowing of the wind.  

Appearance: Auran has no written form, but it is possible to make 'recordings' of Auran speech via a complex machine made up of bellows, airbags, and other such devices.