Amalgamated constructs and other forms of demonic wetware emit a low, ambient ‘purr&rs

Amalgamated constructs and other forms of demonic wetware emit a low, ambient ‘purr’ that is said to sound like a modulated rainstorm. Some find it relaxing.

A select 9% of the population appear to perceive the noise differently, often describing it as akin to 'multiple human screams simultaneously.’