I finished the promised K-20 meter. I imaginatively called it k20, and you can find it at http://hans.fugal.net/src/k20. Here's a screenshot:

k20 screenshot

From left to right, read average (VU), peak (instantaneous with 26 dB / 3 sec falloff), maximum peak, and overs.

This is pure unadulterated printf() abuse. No ncurses. Not that I have anything against ncurses, just that I'm lazy. Of course you need an ANSI capable terminal, but I'm sure you can find one lying around.

by Hans Fugal at 2:40 AM under 20 , audio , db , jack , k , k20 , katz , linux , mac , meter , src