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/*
Copyright (C) 2000 Jeff Tranter
[email protected]
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., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <stdio.h>
#include <math.h>
#include "artsmodulessynth.h"
#include "stdsynthmodule.h"
using namespace Arts;
// This can be used to get the input signal to the normalized range
// between -1 and 1 that Synth_PLAY can process. The louder the input
// signal, the more the signal is distorted by this module. For very
// small input signals, the output signal is about the input signal
// (no change).
class Synth_ATAN_SATURATE_impl : virtual public Synth_ATAN_SATURATE_skel,
virtual public StdSynthModule
{
protected:
float _inscale;
public:
float inscale() { return _inscale; }
void inscale(float newInscale) { _inscale = newInscale; }
void calculateBlock(unsigned long samples)
{
for (unsigned long i=0; i<samples; i++)
outvalue[i] = atan(invalue[i]*_inscale)/(M_PI/2.0);
}
};
REGISTER_IMPLEMENTATION(Synth_ATAN_SATURATE_impl);
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