Update of /cvsroot/pure-data/externals/sc4pd/source In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv27366/source
Modified Files: SOS.cpp main.cpp support.hpp Added Files: HPF.cpp LPF.cpp RHPF.cpp RLPF.cpp Log Message: some filters
Index: support.hpp =================================================================== RCS file: /cvsroot/pure-data/externals/sc4pd/source/support.hpp,v retrieving revision 1.7 retrieving revision 1.8 diff -C2 -d -r1.7 -r1.8 *** support.hpp 3 Aug 2004 17:51:51 -0000 1.7 --- support.hpp 8 Aug 2004 11:10:30 -0000 1.8 *************** *** 123,126 **** --- 123,135 ---- #define SIGFUN(FUN) &thisType::FUN
+ #undef F + #undef D + #undef I + #undef L + #undef C + #undef V + #undef BL + #undef S +
#endif
Index: main.cpp =================================================================== RCS file: /cvsroot/pure-data/externals/sc4pd/source/main.cpp,v retrieving revision 1.23 retrieving revision 1.24 diff -C2 -d -r1.23 -r1.24 *** main.cpp 7 Aug 2004 22:56:22 -0000 1.23 --- main.cpp 8 Aug 2004 11:10:30 -0000 1.24 *************** *** 65,69 **** " AllpassC~, PitchShift~, Resonz~, OnePole(~), OneZero(~), " "TwoPole~, \n" ! " TwoZero~, FOS(~), SOS~" "\n" ); --- 65,69 ---- " AllpassC~, PitchShift~, Resonz~, OnePole(~), OneZero(~), " "TwoPole~, \n" ! " TwoZero~, FOS(~), SOS~, RLPF~, RHPF~, LPF~, HPF~" "\n" ); *************** *** 250,253 **** --- 250,261 ----
FLEXT_DSP_SETUP(SOS_ar); + + FLEXT_DSP_SETUP(RLPF_ar); + + FLEXT_DSP_SETUP(RHPF_ar); + + FLEXT_DSP_SETUP(LPF_ar); + + FLEXT_DSP_SETUP(HPF_ar); }
--- NEW FILE: LPF.cpp --- /* sc4pd LPF~
Copyright (c) 2004 Tim Blechmann.
This code is derived from: SuperCollider real time audio synthesis system Copyright (c) 2002 James McCartney. All rights reserved. http://www.audiosynth.com
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
Based on: PureData by Miller Puckette and others. http://www.crca.ucsd.edu/~msp/software.html FLEXT by Thomas Grill http://www.parasitaere-kapazitaeten.net/ext SuperCollider by James McCartney http://www.audiosynth.com
Coded while listening to: Peter Kowald & Tatsuya Nakatani: 13 Definitions of Truth
*/
#include "sc4pd.hpp"
/* ------------------------ LPF~ -------------------------------*/
class LPF_ar: public sc4pd_dsp { FLEXT_HEADER(LPF_ar,sc4pd_dsp);
public: LPF_ar(int argc, t_atom *argv);
protected: virtual void m_signal(int n, t_sample *const *in, t_sample *const *out); virtual void m_dsp(int n, t_sample *const *in, t_sample *const *out) { mRadiansPerSample = sc_radianspersample(); mFilterSlope = sc_filterslope(); mFilterLoops = sc_filterloops(); mFilterRemain = sc_filterremain(); }
void m_set_freq(float f) { m_freq=f; changed = true; }
private: float m_y1, m_y2, m_a0, m_b1, m_b2, m_freq; bool changed; float mRadiansPerSample, mFilterSlope; int mFilterLoops, mFilterRemain;
FLEXT_CALLBACK_F(m_set_freq); };
FLEXT_LIB_DSP_V("LPF~",LPF_ar);
LPF_ar::LPF_ar(int argc, t_atom *argv) { FLEXT_ADDMETHOD_(0,"kfreq",m_set_freq);
//parse arguments AtomList Args(argc,argv);
m_freq = sc_getfloatarg(Args,0); changed = true;
AddOutSignal();
m_a0 = 0.f; m_b1 = 0.f; m_b2 = 0.f; m_y1 = 0.f; m_y2 = 0.f; }
void LPF_ar::m_signal(int n, t_sample *const *in, t_sample *const *out) { t_sample *nin = *in; t_sample *nout = *out;
float y0; float y1 = m_y1; float y2 = m_y2; float a0 = m_a0; float b1 = m_b1; float b2 = m_b2;
if (changed) { float pfreq = m_freq * mRadiansPerSample * 0.5; float C = 1.f / tan(pfreq); float C2 = C * C; float sqrt2C = C * sqrt2; float next_a0 = 1.f / (1.f + sqrt2C + C2); float next_b1 = -2.f * (1.f - C2) * next_a0 ; float next_b2 = -(1.f - sqrt2C + C2) * next_a0; float a0_slope = (next_a0 - a0) * mFilterSlope; float b1_slope = (next_b1 - b1) * mFilterSlope; float b2_slope = (next_b2 - b2) * mFilterSlope; for (int i = 0; i!= mFilterLoops;++i) { y0 = ZXP(nin) + b1 * y1 + b2 * y2; ZXP(nout) = a0 * (y0 + 2.f * y1 + y2); y2 = ZXP(nin) + b1 * y0 + b2 * y1; ZXP(nout) = a0 * (y2 + 2.f * y0 + y1); y1 = ZXP(nin) + b1 * y2 + b2 * y0; ZXP(nout) = a0 * (y1 + 2.f * y2 + y0); a0 += a0_slope; b1 += b1_slope; b2 += b2_slope; } for (int i = 0; i!= mFilterRemain;++i) { y0 = ZXP(nin) + b1 * y1 + b2 * y2; ZXP(nout) = a0 * (y0 + 2.f * y1 + y2); y2 = y1; y1 = y0; } m_a0 = a0; m_b1 = b1; m_b2 = b2; changed = false; } else { for (int i = 0; i!= mFilterLoops;++i) { y0 = ZXP(nin) + b1 * y1 + b2 * y2; ZXP(nout) = a0 * (y0 + 2.f * y1 + y2); y2 = ZXP(nin) + b1 * y0 + b2 * y1; ZXP(nout) = a0 * (y2 + 2.f * y0 + y1); y1 = ZXP(nin) + b1 * y2 + b2 * y0; ZXP(nout) = a0 * (y1 + 2.f * y2 + y0); }
for (int i = 0; i!= mFilterRemain;++i) { y0 = ZXP(nin) + b1 * y1 + b2 * y2; ZXP(nout) = a0 * (y0 + 2.f * y1 + y2); y2 = y1; y1 = y0; } } m_y1 = zapgremlins(y1); m_y2 = zapgremlins(y2); }
/* no control rate LPF filter */
--- NEW FILE: HPF.cpp --- /* sc4pd HPF~
Copyright (c) 2004 Tim Blechmann.
This code is derived from: SuperCollider real time audio synthesis system Copyright (c) 2002 James McCartney. All rights reserved. http://www.audiosynth.com
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
Based on: PureData by Miller Puckette and others. http://www.crca.ucsd.edu/~msp/software.html FLEXT by Thomas Grill http://www.parasitaere-kapazitaeten.net/ext SuperCollider by James McCartney http://www.audiosynth.com
Coded while listening to: Peter Kowald & Tatsuya Nakatani: 13 Definitions of Truth
*/
#include "sc4pd.hpp"
/* ------------------------ HPF~ -------------------------------*/
class HPF_ar: public sc4pd_dsp { FLEXT_HEADER(HPF_ar,sc4pd_dsp);
public: HPF_ar(int argc, t_atom *argv);
protected: virtual void m_signal(int n, t_sample *const *in, t_sample *const *out); virtual void m_dsp(int n, t_sample *const *in, t_sample *const *out) { mRadiansPerSample = sc_radianspersample(); mFilterSlope = sc_filterslope(); mFilterLoops = sc_filterloops(); mFilterRemain = sc_filterremain(); }
void m_set_freq(float f) { m_freq=f; changed = true; }
private: float m_y1, m_y2, m_a0, m_b1, m_b2, m_freq; bool changed; float mRadiansPerSample, mFilterSlope; int mFilterLoops, mFilterRemain;
FLEXT_CALLBACK_F(m_set_freq); };
FLEXT_LIB_DSP_V("HPF~",HPF_ar);
HPF_ar::HPF_ar(int argc, t_atom *argv) { FLEXT_ADDMETHOD_(0,"kfreq",m_set_freq);
//parse arguments AtomList Args(argc,argv);
m_freq = sc_getfloatarg(Args,0); changed = true;
AddOutSignal();
m_a0 = 0.f; m_b1 = 0.f; m_b2 = 0.f; m_y1 = 0.f; m_y2 = 0.f; }
void HPF_ar::m_signal(int n, t_sample *const *in, t_sample *const *out) { t_sample *nin = *in; t_sample *nout = *out;
float y0; float y1 = m_y1; float y2 = m_y2; float a0 = m_a0; float b1 = m_b1; float b2 = m_b2;
if (changed) { float pfreq = m_freq * mRadiansPerSample * 0.5; float C = tan(pfreq); float C2 = C * C; float sqrt2C = C * sqrt2; float next_a0 = 1.f / (1.f + sqrt2C + C2); float next_b1 = 2.f * (1.f - C2) * next_a0 ; float next_b2 = -(1.f - sqrt2C + C2) * next_a0;
float a0_slope = (next_a0 - a0) * mFilterSlope; float b1_slope = (next_b1 - b1) * mFilterSlope; float b2_slope = (next_b2 - b2) * mFilterSlope; for (int i = 0; i!= mFilterLoops;++i) { y0 = ZXP(nin) + b1 * y1 + b2 * y2; ZXP(nout) = a0 * (y0 - 2.f * y1 + y2); y2 = ZXP(nin) + b1 * y0 + b2 * y1; ZXP(nout) = a0 * (y2 - 2.f * y0 + y1); y1 = ZXP(nin) + b1 * y2 + b2 * y0; ZXP(nout) = a0 * (y1 - 2.f * y2 + y0); a0 += a0_slope; b1 += b1_slope; b2 += b2_slope; } for (int i = 0; i!= mFilterRemain;++i) { y0 = ZXP(nin) + b1 * y1 + b2 * y2; ZXP(nout) = a0 * (y0 - 2.f * y1 + y2); y2 = y1; y1 = y0; } m_a0 = a0; m_b1 = b1; m_b2 = b2; changed = false; } else { for (int i = 0; i!= mFilterLoops;++i) { y0 = ZXP(nin) + b1 * y1 + b2 * y2; ZXP(nout) = a0 * (y0 - 2.f * y1 + y2); y2 = ZXP(nin) + b1 * y0 + b2 * y1; ZXP(nout) = a0 * (y2 - 2.f * y0 + y1); y1 = ZXP(nin) + b1 * y2 + b2 * y0; ZXP(nout) = a0 * (y1 - 2.f * y2 + y0); }
for (int i = 0; i!= mFilterRemain;++i) { y0 = ZXP(nin) + b1 * y1 + b2 * y2; ZXP(nout) = a0 * (y0 - 2.f * y1 + y2); y2 = y1; y1 = y0; } } m_y1 = zapgremlins(y1); m_y2 = zapgremlins(y2); }
/* no control rate HPF filter */
--- NEW FILE: RHPF.cpp --- /* sc4pd RHPF~
Copyright (c) 2004 Tim Blechmann.
This code is derived from: SuperCollider real time audio synthesis system Copyright (c) 2002 James McCartney. All rights reserved. http://www.audiosynth.com
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
Based on: PureData by Miller Puckette and others. http://www.crca.ucsd.edu/~msp/software.html FLEXT by Thomas Grill http://www.parasitaere-kapazitaeten.net/ext SuperCollider by James McCartney http://www.audiosynth.com
Coded while listening to: Peter Kowald & Tatsuya Nakatani: 13 Definitions of Truth
*/
#include "sc4pd.hpp"
/* ------------------------ RHPF~ -------------------------------*/
class RHPF_ar: public sc4pd_dsp { FLEXT_HEADER(RHPF_ar,sc4pd_dsp);
public: RHPF_ar(int argc, t_atom *argv);
protected: virtual void m_signal(int n, t_sample *const *in, t_sample *const *out); virtual void m_dsp(int n, t_sample *const *in, t_sample *const *out) { mRadiansPerSample = sc_radianspersample(); mFilterSlope = sc_filterslope(); mFilterLoops = sc_filterloops(); mFilterRemain = sc_filterremain(); }
void m_set_freq(float f) { m_freq=f; changed = true; }
void m_set_rq(float f) { m_reson=f; changed = true; }
private: float m_y1, m_y2, m_a0, m_b1, m_b2, m_freq, m_reson; bool changed; float mRadiansPerSample, mFilterSlope; int mFilterLoops, mFilterRemain;
FLEXT_CALLBACK_F(m_set_freq); FLEXT_CALLBACK_F(m_set_rq); };
FLEXT_LIB_DSP_V("RHPF~",RHPF_ar);
RHPF_ar::RHPF_ar(int argc, t_atom *argv) { FLEXT_ADDMETHOD_(0,"kfreq",m_set_freq); FLEXT_ADDMETHOD_(0,"krq",m_set_rq);
//parse arguments AtomList Args(argc,argv);
m_freq = sc_getfloatarg(Args,0); m_reson = sc_getfloatarg(Args,1); changed = true;
AddOutSignal();
m_a0 = 0.f; m_b1 = 0.f; m_b2 = 0.f; m_y1 = 0.f; m_y2 = 0.f; }
void RHPF_ar::m_signal(int n, t_sample *const *in, t_sample *const *out) { t_sample *nin = *in; t_sample *nout = *out;
float y0; float y1 = m_y1; float y2 = m_y2; float a0 = m_a0; float b1 = m_b1; float b2 = m_b2;
if (changed) { float qres = sc_max(0.001, m_reson); float pfreq = m_freq * mRadiansPerSample; float D = tan(pfreq * qres * 0.5); float C = ((1.f-D)/(1.f+D)); float cosf = cos(pfreq); float next_b1 = (1.f + C) * cosf; float next_b2 = -C; float next_a0 = (1.f + C + next_b1) * .25;
float a0_slope = (next_a0 - a0) * mFilterSlope; float b1_slope = (next_b1 - b1) * mFilterSlope; float b2_slope = (next_b2 - b2) * mFilterSlope; for (int i = 0; i!= mFilterLoops;++i) { y0 = a0 * ZXP(nin) + b1 * y1 + b2 * y2; ZXP(nout) = y0 - 2.f * y1 + y2; y2 = a0 * ZXP(nin) + b1 * y0 + b2 * y1; ZXP(nout) = y2 - 2.f * y0 + y1; y1 = a0 * ZXP(nin) + b1 * y2 + b2 * y0; ZXP(nout) = y1 - 2.f * y2 + y0; a0 += a0_slope; b1 += b1_slope; b2 += b2_slope; } for (int i = 0; i!= mFilterRemain;++i) { y0 = a0 * ZXP(nin) + b1 * y1 + b2 * y2; ZXP(nout) = y0 - 2.f * y1 + y2; y2 = y1; y1 = y0; } m_a0 = a0; m_b1 = b1; m_b2 = b2; changed = false; } else { for (int i = 0; i!= mFilterLoops;++i) { y0 = a0 * ZXP(nin) + b1 * y1 + b2 * y2; ZXP(nout) = y0 - 2.f * y1 + y2; y2 = a0 * ZXP(nin) + b1 * y0 + b2 * y1; ZXP(nout) = y2 - 2.f * y0 + y1; y1 = a0 * ZXP(nin) + b1 * y2 + b2 * y0; ZXP(nout) = y1 - 2.f * y2 + y0; }
for (int i = 0; i!= mFilterRemain;++i) { y0 = a0 * ZXP(nin) + b1 * y1 + b2 * y2; ZXP(nout) = y0 - 2.f * y1 + y2; y2 = y1; y1 = y0; } } m_y1 = zapgremlins(y1); m_y2 = zapgremlins(y2); }
/* no control rate RHPF filter */
Index: SOS.cpp =================================================================== RCS file: /cvsroot/pure-data/externals/sc4pd/source/SOS.cpp,v retrieving revision 1.1 retrieving revision 1.2 diff -C2 -d -r1.1 -r1.2 *** SOS.cpp 7 Aug 2004 22:56:21 -0000 1.1 --- SOS.cpp 8 Aug 2004 11:10:30 -0000 1.2 *************** *** 144,148 **** if(sc_ar(Args)) { - SETSIGFUN(m_signal_fun,SIGFUN(m_signal_ar)); AddInSignal(); AddInSignal(); --- 144,147 ---- *************** *** 151,154 **** --- 150,154 ---- AddInSignal(); AddInSignal(); + SETSIGFUN(m_signal_fun,SIGFUN(m_signal_ar)); } else // if not given, use control rate *************** *** 191,196 **** ZXP(nout) = ZXP(a0) * y1 + ZXP(a1) * y2 + ZXP(a2) * y0; } ! ! for (int i = 0; i!= mFilterLoops;++i) { y0 = ZXP(nin) + ZXP(b1) * y1 + ZXP(b2) * y2; --- 191,196 ---- ZXP(nout) = ZXP(a0) * y1 + ZXP(a1) * y2 + ZXP(a2) * y0; } ! ! for (int i = 0; i!= mFilterRemain;++i) { y0 = ZXP(nin) + ZXP(b1) * y1 + ZXP(b2) * y2; *************** *** 199,203 **** y1 = y0; } ! m_y1 = zapgremlins(y1); m_y2 = zapgremlins(y2); --- 199,203 ---- y1 = y0; } ! m_y1 = zapgremlins(y1); m_y2 = zapgremlins(y2); *************** *** 244,248 **** }
! for (int i = 0; i!= mFilterLoops;++i) { y0 = ZXP(nin) + b1 * y1 + b2 * y2; --- 244,248 ---- }
! for (int i = 0; i!= mFilterRemain;++i) { y0 = ZXP(nin) + b1 * y1 + b2 * y2;
--- NEW FILE: RLPF.cpp --- /* sc4pd RLPF~
Copyright (c) 2004 Tim Blechmann.
This code is derived from: SuperCollider real time audio synthesis system Copyright (c) 2002 James McCartney. All rights reserved. http://www.audiosynth.com
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
Based on: PureData by Miller Puckette and others. http://www.crca.ucsd.edu/~msp/software.html FLEXT by Thomas Grill http://www.parasitaere-kapazitaeten.net/ext SuperCollider by James McCartney http://www.audiosynth.com
Coded while listening to: Peter Kowald & Tatsuya Nakatani: 13 Definitions of Truth
*/
#include "sc4pd.hpp"
/* ------------------------ RLPF~ -------------------------------*/
class RLPF_ar: public sc4pd_dsp { FLEXT_HEADER(RLPF_ar,sc4pd_dsp);
public: RLPF_ar(int argc, t_atom *argv);
protected: virtual void m_signal(int n, t_sample *const *in, t_sample *const *out); virtual void m_dsp(int n, t_sample *const *in, t_sample *const *out) { mRadiansPerSample = sc_radianspersample(); mFilterSlope = sc_filterslope(); mFilterLoops = sc_filterloops(); mFilterRemain = sc_filterremain(); }
void m_set_freq(float f) { m_freq=f; changed = true; }
void m_set_rq(float f) { m_reson=f; changed = true; }
private: float m_y1, m_y2, m_a0, m_b1, m_b2, m_freq, m_reson; bool changed; float mRadiansPerSample, mFilterSlope; int mFilterLoops, mFilterRemain;
FLEXT_CALLBACK_F(m_set_freq); FLEXT_CALLBACK_F(m_set_rq); };
FLEXT_LIB_DSP_V("RLPF~",RLPF_ar);
RLPF_ar::RLPF_ar(int argc, t_atom *argv) { FLEXT_ADDMETHOD_(0,"kfreq",m_set_freq); FLEXT_ADDMETHOD_(0,"rq",m_set_rq);
//parse arguments AtomList Args(argc,argv);
m_freq = sc_getfloatarg(Args,0); m_reson = sc_getfloatarg(Args,1); changed = true;
AddOutSignal();
m_a0 = 0.f; m_b1 = 0.f; m_b2 = 0.f; m_y1 = 0.f; m_y2 = 0.f; }
void RLPF_ar::m_signal(int n, t_sample *const *in, t_sample *const *out) { t_sample *nin = *in; t_sample *nout = *out;
float y0; float y1 = m_y1; float y2 = m_y2; float a0 = m_a0; float b1 = m_b1; float b2 = m_b2;
if (changed) { float qres = sc_max(0.001, m_reson); float pfreq = m_freq * mRadiansPerSample; float D = tan(pfreq * qres * 0.5); float C = ((1.f-D)/(1.f+D)); float cosf = cos(pfreq); float next_b1 = (1.f + C) * cosf; float next_b2 = -C; float next_a0 = (1.f + C - next_b1) * .25;
float a0_slope = (next_a0 - a0) * mFilterSlope; float b1_slope = (next_b1 - b1) * mFilterSlope; float b2_slope = (next_b2 - b2) * mFilterSlope; for (int i = 0; i!= mFilterLoops;++i) { y0 = a0 * ZXP(nin) + b1 * y1 + b2 * y2; ZXP(nout) = y0 + 2.f * y1 + y2; y2 = a0 * ZXP(nin) + b1 * y0 + b2 * y1; ZXP(nout) = y2 + 2.f * y0 + y1; y1 = a0 * ZXP(nin) + b1 * y2 + b2 * y0; ZXP(nout) = y1 + 2.f * y2 + y0; a0 += a0_slope; b1 += b1_slope; b2 += b2_slope; } for (int i = 0; i!= mFilterRemain;++i) { y0 = a0 * ZXP(nin) + b1 * y1 + b2 * y2; ZXP(nout) = y0 + 2.f * y1 + y2; y2 = y1; y1 = y0; } m_a0 = a0; m_b1 = b1; m_b2 = b2; changed = false; } else { for (int i = 0; i!= mFilterLoops;++i) { y0 = a0 * ZXP(nin) + b1 * y1 + b2 * y2; ZXP(nout) = y0 + 2.f * y1 + y2; y2 = a0 * ZXP(nin) + b1 * y0 + b2 * y1; ZXP(nout) = y2 + 2.f * y0 + y1; y1 = a0 * ZXP(nin) + b1 * y2 + b2 * y0; ZXP(nout) = y1 + 2.f * y2 + y0; }
for (int i = 0; i!= mFilterRemain;++i) { y0 = a0 * ZXP(nin) + b1 * y1 + b2 * y2; ZXP(nout) = y0 + 2.f * y1 + y2; y2 = y1; y1 = y0; } } m_y1 = zapgremlins(y1); m_y2 = zapgremlins(y2); }
/* no control rate RLPF filter */