--- /dev/null
+declare name "vumeter";
+declare version "1.0";
+declare author "Grame";
+declare license "BSD";
+declare copyright "(c)GRAME 2006";
+
+//-------------------------------------------------
+// Simple vumeter
+//-------------------------------------------------
+
+import("math.lib");
+import("music.lib");
+
+
+vmeter(x) = attach(x, envelop(x) : vbargraph("[2][unit:dB]", -70, +5));
+hmeter(x) = attach(x, envelop(x) : hbargraph("[2][unit:dB]", -70, +5));
+
+envelop = abs : max ~ -(1.0/SR) : max(db2linear(-70)) : linear2db;
+
+process = vmeter;