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161 lines
2.8 KiB
C++
161 lines
2.8 KiB
C++
/*
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SweepVF.h
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Copyright 2004-7 Tim Goetze <tim@quitte.de>
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http://quitte.de/dsp/
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SweepVFI, a lorenz fractal modulating the cutoff frequency of a
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state-variable (ladder) filter.
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SweepVFII, the same with Q being modulated by a second fractal.
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AutoWah, SVF being modulated by 'instant' amplitude (envelope).
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*/
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/*
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA or point your web browser to http://www.gnu.org.
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*/
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#ifndef _SWEEP_VF_H_
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#define _SWEEP_VF_H_
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#include "dsp/SVF.h"
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#include "dsp/Lorenz.h"
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#include "dsp/Roessler.h"
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#include "dsp/RMS.h"
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#include "dsp/BiQuad.h"
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#include "dsp/OnePole.h"
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class SweepVFI
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: public Plugin
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{
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public:
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double fs;
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/* svf parameters */
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sample_t f, Q;
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/* needs to be a power of two */
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enum {
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BLOCK_SIZE = 32
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};
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DSP::StackedSVF<1,2> svf;
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DSP::Lorenz lorenz;
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template <sample_func_t F>
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void one_cycle (int frames);
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public:
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static PortInfo port_info [];
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void init();
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void activate();
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void run (int n)
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{
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one_cycle<store_func> (n);
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}
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void run_adding (int n)
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{
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one_cycle<adding_func> (n);
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}
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};
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class SweepVFII
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: public Plugin
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{
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public:
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/* svf parameters */
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sample_t f, Q;
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/* needs to be a power of two */
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enum {
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BLOCK_SIZE = 32
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};
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DSP::StackedSVF<1,2> svf;
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DSP::Lorenz lorenz1;
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DSP::Lorenz lorenz2;
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template <sample_func_t F>
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void one_cycle (int frames);
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public:
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static PortInfo port_info [];
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void init();
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void activate();
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void run (int n)
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{
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one_cycle<store_func> (n);
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}
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void run_adding (int n)
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{
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one_cycle<adding_func> (n);
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}
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};
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/* //////////////////////////////////////////////////////////////////////// */
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class AutoWah
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: public Plugin
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{
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public:
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double fs;
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/* svf parameters */
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sample_t f, Q;
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/* needs to be a power of two */
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enum {
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BLOCK_SIZE = 32
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};
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DSP::StackedSVF<1,2> svf;
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DSP::RMS rms;
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DSP::BiQuad filter;
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DSP::OnePoleHP hp;
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template <sample_func_t F>
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void one_cycle (int frames);
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public:
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static PortInfo port_info [];
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void init();
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void activate();
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void run (int n)
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{
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one_cycle<store_func> (n);
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}
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void run_adding (int n)
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{
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one_cycle<adding_func> (n);
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}
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};
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#endif /* _SWEEP_VF_H_ */
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