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-rwxr-xr-xsc4pd/make-files.txt3
-rw-r--r--sc4pd/pd/onezero.pd21
-rw-r--r--sc4pd/pd/twopole.pd15
-rw-r--r--sc4pd/source/OnePole.cpp4
-rw-r--r--sc4pd/source/OneZero.cpp200
-rw-r--r--sc4pd/source/TwoPole.cpp167
-rw-r--r--sc4pd/source/main.cpp9
-rw-r--r--sc4pd/source/sc4pd.hpp4
8 files changed, 417 insertions, 6 deletions
diff --git a/sc4pd/make-files.txt b/sc4pd/make-files.txt
index 475dc94..a9b154f 100755
--- a/sc4pd/make-files.txt
+++ b/sc4pd/make-files.txt
@@ -12,4 +12,5 @@ SRCS= \
LFPulse.cpp Impulse.cpp Integrator.cpp Decay.cpp Decay2.cpp Lag.cpp \
Lag2.cpp Lag3.cpp LinExp.cpp DelayUnit.cpp DelayN.cpp DelayL.cpp \
DelayC.cpp CombN.cpp CombL.cpp CombC.cpp AllpassN.cpp AllpassL.cpp \
- AllpassC.cpp PitchShift.cpp Resonz.cpp OnePole.cpp
+ AllpassC.cpp PitchShift.cpp Resonz.cpp OnePole.cpp OneZero.cpp \
+ TwoPole.cpp
diff --git a/sc4pd/pd/onezero.pd b/sc4pd/pd/onezero.pd
new file mode 100644
index 0000000..2d68a0b
--- /dev/null
+++ b/sc4pd/pd/onezero.pd
@@ -0,0 +1,21 @@
+#N canvas 0 0 450 300 10;
+#X obj 12 159 dac~;
+#X obj 89 131 print~;
+#X obj 144 112 bng 15 250 50 0 empty empty empty 0 -6 0 8 -262144 -1
+-1;
+#X floatatom 112 20 5 0 0 0 - - -;
+#X floatatom 265 37 9 0 0 0 - - -;
+#X floatatom 266 110 9 0 0 0 - - -;
+#X obj 18 28 WhiteNoise~;
+#X msg 89 60 coef \$1;
+#X obj 18 86 OneZero~ 0.3;
+#X obj 266 78 OneZero 0.3;
+#X connect 2 0 1 0;
+#X connect 3 0 7 0;
+#X connect 4 0 9 0;
+#X connect 6 0 8 0;
+#X connect 7 0 8 0;
+#X connect 8 0 1 0;
+#X connect 8 0 0 0;
+#X connect 8 0 0 1;
+#X connect 9 0 5 0;
diff --git a/sc4pd/pd/twopole.pd b/sc4pd/pd/twopole.pd
new file mode 100644
index 0000000..b781655
--- /dev/null
+++ b/sc4pd/pd/twopole.pd
@@ -0,0 +1,15 @@
+#N canvas 0 0 450 300 10;
+#X obj 124 220 dac~;
+#X floatatom 224 81 5 0 0 0 - - -;
+#X obj 130 89 WhiteNoise~;
+#X obj 130 147 TwoPole~ 440 0.5;
+#X msg 201 121 kfreq \$1;
+#X floatatom 294 81 5 0 0 0 - - -;
+#X msg 271 121 kradius \$1;
+#X connect 1 0 4 0;
+#X connect 2 0 3 0;
+#X connect 3 0 0 0;
+#X connect 3 0 0 1;
+#X connect 4 0 3 0;
+#X connect 5 0 6 0;
+#X connect 6 0 3 0;
diff --git a/sc4pd/source/OnePole.cpp b/sc4pd/source/OnePole.cpp
index 310bf54..3de6ef4 100644
--- a/sc4pd/source/OnePole.cpp
+++ b/sc4pd/source/OnePole.cpp
@@ -31,7 +31,7 @@
SuperCollider by James McCartney
http://www.audiosynth.com
- Coded while listening to:
+ Coded while listening to: Goh Lee Kwang: Internal Pleasures
*/
@@ -240,6 +240,6 @@ OnePole_kr::OnePole_kr(int argc, t_atom *argv)
void OnePole_kr::m_perform(float f)
{
- m_y1= f + m_b1 * (m_y1 - f);
+ m_y1= ((1-abs(m_b1))*f)+m_b1*m_y1;
ToOutFloat(0,m_y1);
}
diff --git a/sc4pd/source/OneZero.cpp b/sc4pd/source/OneZero.cpp
new file mode 100644
index 0000000..82c9ad5
--- /dev/null
+++ b/sc4pd/source/OneZero.cpp
@@ -0,0 +1,200 @@
+/* sc4pd
+ OneZero, OneZero~
+
+ 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: Goh Lee Kwang: Internal Pleasures
+
+*/
+
+#include "sc4pd.hpp"
+
+/* ------------------------ OneZero~ -------------------------------*/
+
+class OneZero_ar:
+ public sc4pd_dsp
+{
+ FLEXT_HEADER(OneZero_ar,sc4pd_dsp);
+
+public:
+ OneZero_ar(int argc, t_atom *argv);
+
+protected:
+ virtual void m_signal(int n, t_sample *const *in, t_sample *const *out);
+
+ void m_set(float f)
+ {
+ n_b1=f;
+ changed = true;
+ }
+
+private:
+ float m_b1, m_x1;
+ float n_b1;
+ bool changed;
+
+ FLEXT_CALLBACK_F(m_set);
+};
+
+FLEXT_LIB_DSP_V("OneZero~",OneZero_ar);
+
+OneZero_ar::OneZero_ar(int argc, t_atom *argv)
+{
+ FLEXT_ADDMETHOD_(0,"coef",m_set);
+
+ //parse arguments
+ AtomList Args(argc,argv);
+
+ m_b1 = sc_getfloatarg(Args,0);
+
+ AddOutSignal();
+
+ m_x1 = 0.f;
+}
+
+void OneZero_ar::m_signal(int n, t_sample *const *in,
+ t_sample *const *out)
+{
+ t_sample *nin = *in;
+ t_sample *nout = *out;
+
+ float b1 = m_b1;
+ float x1 = m_x1;
+
+ if (changed)
+ {
+ m_b1=n_b1;
+ float b1_slope = CALCSLOPE(m_b1, b1);
+ if (b1 >= 0.f && m_b1 >= 0)
+ {
+ for (int i = 0; i!= n;++i)
+ {
+ float x0 = ZXP(nin);
+ ZXP(nout) = x0 + b1 * (x1 - x0);
+ x1 = x0;
+ b1 += b1_slope;
+ }
+ }
+ else if (b1 <= 0.f && m_b1 <= 0)
+ {
+ for (int i = 0; i!= n;++i)
+ {
+ float x0 = ZXP(nin);
+ ZXP(nout) = x0 + b1 * (x1 + x0);
+ x1 = x0;
+ b1 += b1_slope;
+ }
+ }
+ else
+ {
+ for (int i = 0; i!= n;++i)
+ {
+ float x0 = ZXP(nin);
+ ZXP(nout) = (1.f - fabs(b1)) * x0 + b1 * x1;
+ x1 = x0;
+ b1 += b1_slope;
+ }
+ }
+ changed = false;
+ }
+ else
+ {
+ if (b1 >= 0.f)
+ {
+ for (int i = 0; i!= n;++i)
+ {
+ float x0 = ZXP(nin);
+ ZXP(nout) = x0 + b1 * (x1 - x0);
+ x1 = x0;
+ }
+ }
+ else
+ {
+ for (int i = 0; i!= n;++i)
+ {
+ float x0 = ZXP(nin);
+ ZXP(nout) = x0 + b1 * (x1 + x0);
+ x1 = x0;
+ }
+ }
+ }
+ m_x1 = x1;
+}
+
+/* ------------------------ OneZero ---------------------------------*/
+
+
+class OneZero_kr:
+ public flext_base
+{
+ FLEXT_HEADER(OneZero_kr,flext_base);
+
+public:
+ OneZero_kr(int argc, t_atom *argv);
+
+protected:
+ void m_perform(float f);
+
+ void m_set(float f)
+ {
+ m_b1=f;
+ }
+
+private:
+ float m_b1, m_x1;
+
+ FLEXT_CALLBACK_F(m_set);
+ FLEXT_CALLBACK_F(m_perform);
+};
+
+
+FLEXT_LIB_V("OneZero",OneZero_kr);
+
+OneZero_kr::OneZero_kr(int argc, t_atom *argv)
+{
+ FLEXT_ADDMETHOD(0,m_perform);
+ FLEXT_ADDMETHOD_(0,"set",m_set);
+
+ AddOutFloat();
+
+ //parse arguments
+ AtomList Args(argc,argv);
+
+ m_b1 = sc_getfloatarg(Args,0);
+
+ m_x1=0;
+}
+
+void OneZero_kr::m_perform(float f)
+{
+ ToOutFloat(0,((1-abs(m_b1))*f)+m_b1*m_x1);
+ m_x1=f;
+}
diff --git a/sc4pd/source/TwoPole.cpp b/sc4pd/source/TwoPole.cpp
new file mode 100644
index 0000000..b37d17f
--- /dev/null
+++ b/sc4pd/source/TwoPole.cpp
@@ -0,0 +1,167 @@
+/* sc4pd
+ TwoPole~
+
+ 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: VA: Insight
+
+*/
+
+#include "sc4pd.hpp"
+
+/* ------------------------ TwoPole~ -------------------------------*/
+
+class TwoPole_ar:
+ public sc4pd_dsp
+{
+ FLEXT_HEADER(TwoPole_ar,sc4pd_dsp);
+
+public:
+ TwoPole_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_radius(float f)
+ {
+ m_reson=f;
+ changed = true;
+ }
+
+
+private:
+ float m_b1, m_b2, m_y1, m_y2, m_freq, m_reson;
+ bool changed;
+ float mRadiansPerSample, mFilterSlope;
+ int mFilterLoops, mFilterRemain;
+
+ FLEXT_CALLBACK_F(m_set_freq);
+ FLEXT_CALLBACK_F(m_set_radius);
+};
+
+FLEXT_LIB_DSP_V("TwoPole~",TwoPole_ar);
+
+TwoPole_ar::TwoPole_ar(int argc, t_atom *argv)
+{
+ FLEXT_ADDMETHOD_(0,"kfreq",m_set_freq);
+ FLEXT_ADDMETHOD_(0,"kradius",m_set_radius);
+
+ //parse arguments
+ AtomList Args(argc,argv);
+
+ m_freq = sc_getfloatarg(Args,0);
+ m_reson = sc_getfloatarg(Args,1);
+ changed = false;
+
+ AddOutSignal();
+
+ m_b1 = 0.f;
+ m_b2 = 0.f;
+ m_y1 = 0.f;
+ m_y2 = 0.f;
+}
+
+void TwoPole_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;
+
+ if (changed)
+ {
+ float b1 = m_b1;
+ float b2 = m_b2;
+ float b1_next = 2.f * m_reson * cos(m_freq * mRadiansPerSample);
+ float b2_next = -(m_reson * m_reson);
+ float b1_slope = (b1_next - b1) * mFilterSlope;
+ float b2_slope = (b2_next - b2) * mFilterSlope;
+
+ for (int i = 0; i!= mFilterLoops;++i)
+ {
+ ZXP(nout) = y0 = ZXP(nin) + b1 * y1 + b2 * y2;
+ ZXP(nout) = y2 = ZXP(nin) + b1 * y0 + b2 * y1;
+ ZXP(nout) = y1 = ZXP(nin) + b1 * y2 + b2 * y0;
+
+ b1 += b1_slope;
+ b2 += b2_slope;
+ }
+
+ for (int i = 0; i!= mFilterRemain;++i)
+ {
+ ZXP(nout) = y0 = ZXP(nin) + b1 * y1 + b2 * y2;
+ y2 = y1;
+ y1 = y0;
+ }
+
+ m_b1 = b1;
+ m_b2 = b2;
+ changed = false;
+ }
+ else
+ {
+ float b1 = m_b1;
+ float b2 = m_b2;
+
+ for (int i = 0; i!= mFilterLoops;++i)
+ {
+ ZXP(nout) = y0 = ZXP(nin) + b1 * y1 + b2 * y2;
+ ZXP(nout) = y2 = ZXP(nin) + b1 * y0 + b2 * y1;
+ ZXP(nout) = y1 = ZXP(nin) + b1 * y2 + b2 * y0;
+ }
+ for (int i = 0; i!= mFilterRemain;++i)
+ {
+ ZXP(nout) = y0 = ZXP(nin) + b1 * y1 + b2 * y2;
+ y2 = y1;
+ y1 = y0;
+ }
+ }
+ m_y1 = zapgremlins(y1);
+ m_y2 = zapgremlins(y2);
+}
+
+/* no control rate two pole filter */
diff --git a/sc4pd/source/main.cpp b/sc4pd/source/main.cpp
index 8f0eafa..2cac635 100644
--- a/sc4pd/source/main.cpp
+++ b/sc4pd/source/main.cpp
@@ -62,7 +62,9 @@ void sc4pd_library_setup()
"DelayN~,\n"
" DelayL~, DelayC~, CombN~, CombL~, CombC~, AllpassN~, "
"AllpassL~,\n"
- " AllpassC~, PitchShift~, Resonz~, OnePole(~)"
+ " AllpassC~, PitchShift~, Resonz~, OnePole(~), OneZero(~)"
+ "TwoPole~"
+
"\n"
);
@@ -235,6 +237,11 @@ void sc4pd_library_setup()
FLEXT_DSP_SETUP(OnePole_ar);
FLEXT_SETUP(OnePole_kr);
+
+ FLEXT_DSP_SETUP(OneZero_ar);
+ FLEXT_SETUP(OneZero_kr);
+
+ FLEXT_DSP_SETUP(TwoPole_ar);
}
FLEXT_LIB_SETUP(sc4pd,sc4pd_library_setup);
diff --git a/sc4pd/source/sc4pd.hpp b/sc4pd/source/sc4pd.hpp
index eacbfff..f80b177 100644
--- a/sc4pd/source/sc4pd.hpp
+++ b/sc4pd/source/sc4pd.hpp
@@ -102,12 +102,12 @@ class sc4pd_dsp
return 1 / Blocksize();
}
- inline float sc_filterloops()
+ inline int sc_filterloops()
{
return Blocksize() / 3;
}
- inline float sc_filterremain()
+ inline int sc_filterremain()
{
return Blocksize() % 3;
}
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-27 12:27:03 +0000