Safety Limiter by Robbert van der Helm

This plugin is a simple tool to prevent ear damage. As soon as there is a peak above 0 dBFS or the specified threshold, the plugin will cut over to playing SOS in Morse code, gradually fading out again when the input returns back to safe levels. The same thing happens if the input contains infinite or NaN values. Made for personal use during plugin development and intense sound design sessions, but maybe you’ll find it useful too.

Why not use a regular brickwall peak limiter?

The downside of doing that is that you may end up mixing or doing sound design into that limiter without realizing it. And at that point, you’ll probably need to either redo part of the process. So this plugin simply gives you a very non-subtle heads up instead of altering the sound.