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52 lines
1.6 KiB
52 lines
1.6 KiB
15 years ago
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/*
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Copyright (C) 2000 Jeff Tranter
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tranter@pobox.com
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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15 years ago
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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15 years ago
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*/
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#include "artsmodulessynth.h"
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#include "stdsynthmodule.h"
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using namespace Arts;
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// A brickwall limiter is used to protect equipment (and your ears..)
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// from peaks that exceed the dynamic range of your system. It doesn't
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// sound good but it's better than digital distortion.
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class Synth_BRICKWALL_LIMITER_impl : virtual public Synth_BRICKWALL_LIMITER_skel,
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virtual public StdSynthModule
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{
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public:
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void calculateBlock(unsigned long samples)
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{
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unsigned long i;
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for(i=0; i<samples; i++)
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{
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if (invalue[i] > 1.0)
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outvalue[i] = 1.0;
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else if (invalue[i] < -1.0)
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outvalue[i] = -1.0;
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else
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outvalue[i] = invalue[i];
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}
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}
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};
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REGISTER_IMPLEMENTATION(Synth_BRICKWALL_LIMITER_impl);
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