File: vumeter.dsp

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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;