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/*
Copyright (C) 2000 Jeff Tranter
tranter@pobox.com
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#include <math.h>
#include "artsmodulessynth.h"
#include "stdsynthmodule.h"
using namespace Arts;
// The tremolo module modulates the amplitude according to a LFO-Wave.
// Traditionally you would use a sine wave but why limit yourself?
// What you get is a very intense effect that cuts through most
// arrangements because of its high dynamic range. The tremolo effect
// is still one of guitarists favorite effects although it's not as
// popular as in the 1960's.
class Synth_TREMOLO_impl : virtual public Synth_TREMOLO_skel,
virtual public StdSynthModule
{
public:
void calculateBlock(unsigned long samples)
{
unsigned long i;
for(i=0; i<samples; i++)
{
// simply modulate the amplitude
outvalue[i] = invalue[i] * fabs(inlfo[i]);
}
}
};
REGISTER_IMPLEMENTATION(Synth_TREMOLO_impl);
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