aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorHans-Christoph Steiner <eighthave@users.sourceforge.net>2006-01-09 21:24:28 +0000
committerHans-Christoph Steiner <eighthave@users.sourceforge.net>2006-01-09 21:24:28 +0000
commitd449d31030cfc4a3e06858bf877dcbfacad59f74 (patch)
treee7d5c4b2359fdb7e7727c3ea72ca250ca5275e2d
checked in code from sIgpAck0.03.ZIP; cleaned up comment warnings and changed #ifdef NT to #ifdef _MSC_VER; removed sp. prefix and set up for namespacessvn2git-root
svn path=/trunk/externals/sigpack/; revision=4381
-rw-r--r--help/chop~-help.pd32
-rw-r--r--help/decimate~-help.pd32
-rw-r--r--help/diode~-help.pd26
-rw-r--r--help/foldback~-help.pd30
-rw-r--r--help/foldover~-help.pd30
-rw-r--r--help/freqdiv~-help.pd27
-rw-r--r--help/freqshift~-help.pd33
-rw-r--r--help/harmgen~-help.pd54
-rw-r--r--help/rectify~-help.pd27
-rw-r--r--help/round~-help.pd26
-rw-r--r--help/saturate~-help.pd29
-rw-r--r--help/sieve~-help.pd28
-rw-r--r--help/split~-help.pd26
-rw-r--r--help/ustep~-help.pd38
-rw-r--r--help/vowel~-help.pd45
-rw-r--r--source/chop~.c67
-rw-r--r--source/decimate~.c76
-rw-r--r--source/diode~.c78
-rw-r--r--source/foldback~.c70
-rw-r--r--source/foldover~.c71
-rw-r--r--source/freqdiv~.c100
-rw-r--r--source/freqshift~.c197
-rw-r--r--source/harmgen~.c161
-rw-r--r--source/rectify~.c61
-rw-r--r--source/round~.c64
-rw-r--r--source/sIgpAck.c58
-rw-r--r--source/saturate~.c83
-rw-r--r--source/sieve~.c105
-rw-r--r--source/split~.c72
-rw-r--r--source/ustep~.c83
-rw-r--r--source/vowel~.c118
31 files changed, 1947 insertions, 0 deletions
diff --git a/help/chop~-help.pd b/help/chop~-help.pd
new file mode 100644
index 0000000..630bfc9
--- /dev/null
+++ b/help/chop~-help.pd
@@ -0,0 +1,32 @@
+#N canvas 366 389 462 366 12;
+#X obj 155 172 nbx 5 14 -2 2 0 0 empty empty ->factor[-2/2] 60 8 0
+10 -262144 -1 -1 0 256;
+#X text 60 35 signal chopping modulator;
+#X obj 62 116 osc~ 220;
+#X obj 62 312 dac~;
+#X obj 156 195 nbx 5 14 0 100 0 0 empty empty empty 0 -6 0 10 -262144
+-1 -1 92 256;
+#X obj 62 277 *~;
+#X obj 156 258 line~;
+#X obj 156 235 pack 0 50;
+#X obj 156 213 dbtorms;
+#X text 156 144 ->signal modulation input;
+#X text 155 116 ->signal input;
+#X text 60 51 multiplicates incoming signal by factor x;
+#X text 59 68 if modulation signal is positive;
+#X obj 99 146 osc~ 2;
+#X text 300 11 arg<factor>;
+#X text 252 301 sIgpAck 0.02;
+#X obj 62 186 sp.chop~ 0;
+#X text 213 316 2003 www.weiss-archiv.de;
+#X text 60 13 ---sp.chop~---;
+#X connect 0 0 16 2;
+#X connect 2 0 16 0;
+#X connect 4 0 8 0;
+#X connect 5 0 3 0;
+#X connect 5 0 3 1;
+#X connect 6 0 5 1;
+#X connect 7 0 6 0;
+#X connect 8 0 7 0;
+#X connect 13 0 16 1;
+#X connect 16 0 5 0;
diff --git a/help/decimate~-help.pd b/help/decimate~-help.pd
new file mode 100644
index 0000000..3f9e35c
--- /dev/null
+++ b/help/decimate~-help.pd
@@ -0,0 +1,32 @@
+#N canvas 285 400 488 343 12;
+#N canvas 0 0 450 300 graph1 0;
+#X array deci 44100 float 0;
+#X coords 0 1.02 44099 -1.02 100 70 1;
+#X restore 305 189 graph;
+#X msg 8 112 bang;
+#X obj 52 105 osc~ 1.5;
+#N canvas 0 0 450 300 graph1 0;
+#X array osc 44100 float 0;
+#X coords 0 1 44099 -1 100 70 1;
+#X restore 305 102 graph;
+#X obj 62 132 tabwrite~ osc;
+#X obj 125 172 nbx 5 14 0 1 0 0 empty empty ratio 0 -6 0 10 -262144
+-1 -1 0.02 256;
+#X obj 199 172 nbx 5 14 0 32 0 0 empty empty bits[1-32] 0 -6 0 10 -262144
+-1 -1 0 256;
+#X obj 52 228 tabwrite~ deci;
+#X text 51 35 signal decimation;
+#X text 51 50 a ratio of 1 is orig. samplerate 0.5 is half;
+#X text 273 11 arg<ratio><bits>;
+#X text 51 67 of orig. samplerate etc.;
+#X text 260 268 sIgpAck 0.02;
+#X obj 52 195 sp.decimate~ 0.5 16;
+#X text 222 281 2003 www.weiss-archiv.de;
+#X text 51 13 ---sp.decimate~---;
+#X connect 1 0 4 0;
+#X connect 1 0 7 0;
+#X connect 2 0 4 0;
+#X connect 2 0 13 0;
+#X connect 5 0 13 1;
+#X connect 6 0 13 2;
+#X connect 13 0 7 0;
diff --git a/help/diode~-help.pd b/help/diode~-help.pd
new file mode 100644
index 0000000..63c60da
--- /dev/null
+++ b/help/diode~-help.pd
@@ -0,0 +1,26 @@
+#N canvas 71 176 480 305 12;
+#N canvas 0 0 450 300 graph1 0;
+#X array diode 44100 float 0;
+#X coords 0 1.02 44099 -1.02 100 70 1;
+#X restore 306 163 graph;
+#X msg 18 85 bang;
+#X obj 62 78 osc~ 1.5;
+#N canvas 0 0 450 300 graph1 0;
+#X array osc 44100 float 0;
+#X coords 0 1 44099 -1 100 70 1;
+#X restore 306 75 graph;
+#X obj 72 105 tabwrite~ osc;
+#X text 60 13 ---sp.diode~---;
+#X obj 62 201 tabwrite~ diode;
+#X obj 62 168 sp.diode~ 0;
+#X floatatom 145 147 5 0 2 2 mode[0-2] - -;
+#X text 294 12 arg<mode>;
+#X text 60 35 diode rectifier network;
+#X text 263 240 sIgpAck 0.03;
+#X text 223 254 2005 www.weiss-archiv.de;
+#X connect 1 0 4 0;
+#X connect 1 0 6 0;
+#X connect 2 0 4 0;
+#X connect 2 0 7 0;
+#X connect 7 0 6 0;
+#X connect 8 0 7 1;
diff --git a/help/foldback~-help.pd b/help/foldback~-help.pd
new file mode 100644
index 0000000..efb78f7
--- /dev/null
+++ b/help/foldback~-help.pd
@@ -0,0 +1,30 @@
+#N canvas 71 176 476 301 12;
+#N canvas 0 0 450 300 graph1 0;
+#X array fold 44100 float 0;
+#X coords 0 1.02 44099 -1.02 100 70 1;
+#X restore 306 163 graph;
+#X msg 18 85 bang;
+#X obj 62 78 osc~ 1.5;
+#N canvas 0 0 450 300 graph1 0;
+#X array osc 44100 float 0;
+#X coords 0 1 44099 -1 100 70 1;
+#X restore 306 75 graph;
+#X obj 72 105 tabwrite~ osc;
+#X obj 143 147 nbx 5 14 -1 0 0 0 empty empty neg 0 -6 0 10 -262144
+-1 -1 0 256;
+#X obj 225 147 nbx 5 14 0 1 0 0 empty empty pos 0 -6 0 10 -262144 -1
+-1 0 256;
+#X obj 62 201 tabwrite~ fold;
+#X text 264 240 sIgpAck 0.01;
+#X text 299 12 arg<neg><pos>;
+#X text 60 35 signal mirror;
+#X obj 62 168 sp.foldback~ -0.5 0.5;
+#X text 224 254 2002 www.weiss-archiv.de;
+#X text 60 13 ---sp.foldback~---;
+#X connect 1 0 4 0;
+#X connect 1 0 7 0;
+#X connect 2 0 4 0;
+#X connect 2 0 11 0;
+#X connect 5 0 11 1;
+#X connect 6 0 11 2;
+#X connect 11 0 7 0;
diff --git a/help/foldover~-help.pd b/help/foldover~-help.pd
new file mode 100644
index 0000000..c50d7da
--- /dev/null
+++ b/help/foldover~-help.pd
@@ -0,0 +1,30 @@
+#N canvas 71 176 480 305 12;
+#N canvas 0 0 450 300 graph1 0;
+#X array fold 44100 float 0;
+#X coords 0 1.02 44099 -1.02 100 70 1;
+#X restore 306 163 graph;
+#X msg 18 85 bang;
+#X obj 62 78 osc~ 1.5;
+#N canvas 0 0 450 300 graph1 0;
+#X array osc 44100 float 0;
+#X coords 0 1 44099 -1 100 70 1;
+#X restore 306 75 graph;
+#X obj 72 105 tabwrite~ osc;
+#X obj 123 144 nbx 5 14 0 0.1 0 0 empty empty amp[0-0.1] 0 -6 0 10
+-262144 -1 -1 0.1 256;
+#X obj 206 154 nbx 5 14 0 1 0 0 empty empty sym[0-1] 0 -6 0 10 -262144
+-1 -1 1 256;
+#X obj 62 201 tabwrite~ fold;
+#X text 60 35 foldover distortion;
+#X text 294 12 arg<amp><sym>;
+#X text 262 240 sIgpAck 0.02;
+#X obj 62 168 sp.foldover~ 0 0;
+#X text 223 254 2003 www.weiss-archiv.de;
+#X text 60 13 ---sp.foldover~---;
+#X connect 1 0 4 0;
+#X connect 1 0 7 0;
+#X connect 2 0 4 0;
+#X connect 2 0 11 0;
+#X connect 5 0 11 1;
+#X connect 6 0 11 2;
+#X connect 11 0 7 0;
diff --git a/help/freqdiv~-help.pd b/help/freqdiv~-help.pd
new file mode 100644
index 0000000..5381058
--- /dev/null
+++ b/help/freqdiv~-help.pd
@@ -0,0 +1,27 @@
+#N canvas 71 176 488 313 12;
+#N canvas 0 0 450 300 graph1 0;
+#X array div 44100 float 0;
+#X coords 0 1.02 44099 -1.02 100 70 1;
+#X restore 338 163 graph;
+#X msg 18 85 bang;
+#N canvas 0 0 450 300 graph1 0;
+#X array osc 44100 float 0;
+#X coords 0 1 44099 -1 100 70 1;
+#X restore 337 75 graph;
+#X obj 72 105 tabwrite~ osc;
+#X obj 62 201 tabwrite~ div;
+#X floatatom 161 143 5 0 8 1 -->denominate - -;
+#X text 315 12 arg<denominate>;
+#X text 60 35 signal frequency divider;
+#X obj 62 78 osc~ 4;
+#X text 220 157 [(int)0-8];
+#X text 293 239 sIgpAck 0.02;
+#X obj 62 168 sp.freqdiv~ 1;
+#X text 254 254 2003 www.weiss-archiv.de;
+#X text 60 13 ---sp.freqdiv~---;
+#X connect 1 0 3 0;
+#X connect 1 0 4 0;
+#X connect 5 0 11 1;
+#X connect 8 0 3 0;
+#X connect 8 0 11 0;
+#X connect 11 0 4 0;
diff --git a/help/freqshift~-help.pd b/help/freqshift~-help.pd
new file mode 100644
index 0000000..13b1983
--- /dev/null
+++ b/help/freqshift~-help.pd
@@ -0,0 +1,33 @@
+#N canvas 177 339 492 389 12;
+#N canvas 0 0 450 300 graph1 0;
+#X array downshift 44100 float 0;
+#X coords 0 1.02 44099 -1.02 100 70 1;
+#X restore 337 163 graph;
+#X msg 17 85 bang;
+#N canvas 0 0 450 300 graph1 0;
+#X array osc 44100 float 0;
+#X coords 0 1 44099 -1 100 70 1;
+#X restore 337 75 graph;
+#X obj 72 105 tabwrite~ osc;
+#X text 60 13 ---sp.freqshift~---;
+#X text 60 35 bode frequency shifter;
+#X text 315 12 arg<shift>;
+#X obj 62 168 sp.freqshift~ 100;
+#X obj 62 78 osc~ 110;
+#X text 287 334 sIgpAck 0.03;
+#X text 248 349 2005 www.weiss-archiv.de;
+#X floatatom 193 143 5 0 0 2 shift[hz] - -;
+#N canvas 0 0 450 300 graph1 0;
+#X array upshift 44100 float 0;
+#X coords 0 1.02 44099 -1.02 100 70 1;
+#X restore 338 252 graph;
+#X obj 63 304 tabwrite~ downshift;
+#X obj 73 280 tabwrite~ upshift;
+#X connect 1 0 3 0;
+#X connect 1 0 13 0;
+#X connect 1 0 14 0;
+#X connect 7 0 13 0;
+#X connect 7 1 14 0;
+#X connect 8 0 3 0;
+#X connect 8 0 7 0;
+#X connect 11 0 7 1;
diff --git a/help/harmgen~-help.pd b/help/harmgen~-help.pd
new file mode 100644
index 0000000..afcd8bc
--- /dev/null
+++ b/help/harmgen~-help.pd
@@ -0,0 +1,54 @@
+#N canvas 211 248 536 429 12;
+#N canvas 0 0 450 300 graph1 0;
+#X array harm 44100 float 0;
+#X coords 0 1.02 44099 -1.02 100 70 1;
+#X restore 381 169 graph;
+#X msg 18 85 bang;
+#X obj 62 78 osc~ 1.5;
+#N canvas 0 0 450 300 graph1 0;
+#X array osc 44100 float 0;
+#X coords 0 1 44099 -1 100 70 1;
+#X restore 380 79 graph;
+#X obj 72 105 tabwrite~ osc;
+#X text 60 35 harmonic generator;
+#X text 334 17 arg<mag1>..<mag10>;
+#X text 337 358 sIgpAck 0.02;
+#X obj 62 371 tabwrite~ harm;
+#X floatatom 86 132 5 -1 1 0 - - -;
+#X floatatom 110 153 5 -1 1 0 - - -;
+#X floatatom 134 174 5 -1 1 0 - - -;
+#X floatatom 159 195 5 -1 1 0 - - -;
+#X floatatom 183 215 5 -1 1 0 - - -;
+#X floatatom 207 236 5 -1 1 0 - - -;
+#X floatatom 232 257 5 -1 1 0 - - -;
+#X floatatom 256 277 5 -1 1 0 - - -;
+#X floatatom 280 298 5 -1 1 0 - - -;
+#X floatatom 305 319 5 -1 1 0 - - -;
+#X text 351 318 ->mag10[-1/1];
+#X text 133 130 ->mag1[-1/1]:fundamental freq;
+#X text 158 151 ->mag2[-1/1];
+#X text 181 173 ->mag3[-1/1];
+#X text 210 193 ->mag4[-1/1];
+#X text 229 214 ->mag5[-1/1];
+#X text 255 235 ->mag6[-1/1];
+#X text 280 256 ->mag7[-1/1];
+#X text 305 276 ->mag8[-1/1];
+#X text 327 297 ->mag9[-1/1];
+#X obj 62 342 sp.harmgen~ 0 0 0 0 0 0 0 0 0 0;
+#X text 298 372 2003 www.weiss-archiv.de;
+#X text 60 13 ---sp.harmgen~---;
+#X connect 1 0 4 0;
+#X connect 1 0 8 0;
+#X connect 2 0 4 0;
+#X connect 2 0 29 0;
+#X connect 9 0 29 1;
+#X connect 10 0 29 2;
+#X connect 11 0 29 3;
+#X connect 12 0 29 4;
+#X connect 13 0 29 5;
+#X connect 14 0 29 6;
+#X connect 15 0 29 7;
+#X connect 16 0 29 8;
+#X connect 17 0 29 9;
+#X connect 18 0 29 10;
+#X connect 29 0 8 0;
diff --git a/help/rectify~-help.pd b/help/rectify~-help.pd
new file mode 100644
index 0000000..0924b84
--- /dev/null
+++ b/help/rectify~-help.pd
@@ -0,0 +1,27 @@
+#N canvas 149 271 419 288 12;
+#N canvas 0 0 450 300 graph1 0;
+#X array rect 44100 float 0;
+#X coords 0 1 44099 -1 100 70 1;
+#X restore 231 159 graph;
+#X msg 21 113 bang;
+#X obj 62 75 osc~ 1.345;
+#X obj 75 133 tabwrite~ osc;
+#N canvas 0 0 450 300 graph1 0;
+#X array osc 44100 float 0;
+#X coords 0 1 44099 -1 100 70 1;
+#X restore 230 72 graph;
+#X text 340 68 1;
+#X text 333 124 -1;
+#X text 60 35 flips negative values to positive;
+#X text 342 153 1;
+#X text 334 213 -1;
+#X obj 62 201 tabwrite~ rect;
+#X text 208 237 sIgpAck 0.01;
+#X obj 62 165 sp.rectify~;
+#X text 166 250 2002 www.weiss-archiv.de;
+#X text 60 13 ---sp.rectify~---;
+#X connect 1 0 3 0;
+#X connect 1 0 10 0;
+#X connect 2 0 3 0;
+#X connect 2 0 12 0;
+#X connect 12 0 10 0;
diff --git a/help/round~-help.pd b/help/round~-help.pd
new file mode 100644
index 0000000..8e5ed0a
--- /dev/null
+++ b/help/round~-help.pd
@@ -0,0 +1,26 @@
+#N canvas 190 492 440 305 12;
+#N canvas 0 0 450 300 graph1 0;
+#X array round 44100 float 0;
+#X coords 0 1.02 44099 -1.02 100 70 1;
+#X restore 307 162 graph;
+#X msg 18 85 bang;
+#X obj 62 78 osc~ 1.5;
+#N canvas 0 0 450 300 graph1 0;
+#X array osc 44100 float 0;
+#X coords 0 1 44099 -1 100 70 1;
+#X restore 306 75 graph;
+#X obj 72 105 tabwrite~ osc;
+#X floatatom 145 146 5 0 0 2 coarse - -;
+#X obj 62 201 tabwrite~ round;
+#X text 60 13 ---sp.round~---;
+#X text 60 35 simple rounder;
+#X text 262 240 sIgpAck 0.03;
+#X text 223 254 2005 www.weiss-archiv.de;
+#X text 312 12 arg<coarse>;
+#X obj 62 168 sp.round~ 2;
+#X connect 1 0 4 0;
+#X connect 1 0 6 0;
+#X connect 2 0 4 0;
+#X connect 2 0 12 0;
+#X connect 5 0 12 1;
+#X connect 12 0 6 0;
diff --git a/help/saturate~-help.pd b/help/saturate~-help.pd
new file mode 100644
index 0000000..087747c
--- /dev/null
+++ b/help/saturate~-help.pd
@@ -0,0 +1,29 @@
+#N canvas 202 222 476 321 12;
+#N canvas 0 0 450 300 graph1 0;
+#X array sat 44100 float 0;
+#X coords 0 1.02 44099 -1.02 100 70 1;
+#X restore 306 185 graph;
+#X msg 17 109 bang;
+#X obj 61 102 osc~ 1.5;
+#N canvas 0 0 450 300 graph1 0;
+#X array osc 44100 float 0;
+#X coords 0 1 44099 -1 100 70 1;
+#X restore 305 99 graph;
+#X obj 71 129 tabwrite~ osc;
+#X obj 184 172 nbx 5 14 -1 1 0 0 empty empty thresh 0 -6 0 10 -262144
+-1 -1 0 256;
+#X obj 61 225 tabwrite~ sat;
+#X text 60 35 soft saturation;
+#X text 316 12 arg<thresh>;
+#X text 263 264 sIgpAck 0.02;
+#X text 60 50 if signal is above threshold;
+#X text 60 65 a soft saturation is added;
+#X obj 61 193 sp.saturate~ 0.5;
+#X text 223 278 2003 www.weiss-archiv.de;
+#X text 60 13 ---sp.saturate~---;
+#X connect 1 0 4 0;
+#X connect 1 0 6 0;
+#X connect 2 0 4 0;
+#X connect 2 0 12 0;
+#X connect 5 0 12 1;
+#X connect 12 0 6 0;
diff --git a/help/sieve~-help.pd b/help/sieve~-help.pd
new file mode 100644
index 0000000..1ae25b9
--- /dev/null
+++ b/help/sieve~-help.pd
@@ -0,0 +1,28 @@
+#N canvas 71 176 480 305 12;
+#N canvas 0 0 450 300 graph1 0;
+#X array sieve 44100 float 0;
+#X coords 0 1.02 44099 -1.02 100 70 1;
+#X restore 306 163 graph;
+#X msg 18 85 bang;
+#X obj 62 78 osc~ 1.5;
+#N canvas 0 0 450 300 graph1 0;
+#X array osc 44100 float 0;
+#X coords 0 1 44099 -1 100 70 1;
+#X restore 306 75 graph;
+#X obj 72 105 tabwrite~ osc;
+#X floatatom 119 145 1 0 0 2 mode - -;
+#X floatatom 191 151 5 0 0 2 samp[-1/1] - -;
+#X text 262 240 sIgpAck 0.03;
+#X text 223 254 2005 www.weiss-archiv.de;
+#X obj 62 201 tabwrite~ sieve;
+#X obj 62 168 sp.sieve~ 0 0.5;
+#X text 60 13 ---sp.sieve~---;
+#X text 60 35 simple sample sifter;
+#X text 294 12 arg<mode><samp>;
+#X connect 1 0 4 0;
+#X connect 1 0 9 0;
+#X connect 2 0 4 0;
+#X connect 2 0 10 0;
+#X connect 5 0 10 1;
+#X connect 6 0 10 2;
+#X connect 10 0 9 0;
diff --git a/help/split~-help.pd b/help/split~-help.pd
new file mode 100644
index 0000000..32d7f25
--- /dev/null
+++ b/help/split~-help.pd
@@ -0,0 +1,26 @@
+#N canvas 343 402 362 261 12;
+#X floatatom 208 97 5 0 0 0 - - -;
+#X obj 109 96 sig~;
+#X floatatom 109 74 5 0 0 0 - - -;
+#X obj 208 147 snapshot~;
+#X obj 109 147 snapshot~;
+#X obj 34 127 metro 20;
+#X obj 34 102 loadbang;
+#X floatatom 109 174 5 0 0 0 - - -;
+#X floatatom 208 175 5 0 0 0 - - -;
+#X text 60 35 signal split function;
+#X text 164 209 sIgpAck 0.01;
+#X text 224 13 arg<value>;
+#X obj 109 120 sp.split~ 0.5;
+#X text 124 224 2002 www.weiss-archiv.de;
+#X text 60 13 ---sp.split~---;
+#X connect 0 0 12 1;
+#X connect 1 0 12 0;
+#X connect 2 0 1 0;
+#X connect 3 0 8 0;
+#X connect 4 0 7 0;
+#X connect 5 0 3 0;
+#X connect 5 0 4 0;
+#X connect 6 0 5 0;
+#X connect 12 0 4 0;
+#X connect 12 1 3 0;
diff --git a/help/ustep~-help.pd b/help/ustep~-help.pd
new file mode 100644
index 0000000..61665b8
--- /dev/null
+++ b/help/ustep~-help.pd
@@ -0,0 +1,38 @@
+#N canvas 194 385 571 387 12;
+#X obj 62 318 dac~;
+#X obj 95 200 nbx 5 14 0 100 0 0 empty empty empty 0 -6 0 10 -262144
+-1 -1 0 256;
+#X obj 62 283 *~;
+#X obj 95 263 line~;
+#X obj 95 240 pack 0 50;
+#X obj 95 218 dbtorms;
+#X floatatom 119 118 1 0 0 0 - - -;
+#X obj 177 140 nbx 5 14 0 1 0 0 empty empty empty 0 -6 0 10 -262144
+-1 -1 0 256;
+#X text 60 35 signal unity step function;
+#X text 138 117 Mode[0/1];
+#X text 236 136 Thres[0-1];
+#X text 229 179 Mode0: if signal is above the;
+#X text 286 191 specified threshold a unity;
+#X text 286 203 step is output \, otherwise zero;
+#X text 228 218 Mode1: same as above but if below the;
+#X text 283 230 threshold \, the signal passes;
+#X text 284 242 unchanged;
+#X obj 62 92 osc~ 440;
+#X floatatom 62 70 5 0 0 0 - - -;
+#X text 301 15 arg<mode><threshold>;
+#X text 308 331 sIgpAck 0.01;
+#X obj 62 163 sp.ustep~ 0 0.5;
+#X text 269 345 2002 www.weiss-archiv.de;
+#X text 60 13 ---sp.ustep~---;
+#X connect 1 0 5 0;
+#X connect 2 0 0 0;
+#X connect 2 0 0 1;
+#X connect 3 0 2 1;
+#X connect 4 0 3 0;
+#X connect 5 0 4 0;
+#X connect 6 0 21 1;
+#X connect 7 0 21 2;
+#X connect 17 0 21 0;
+#X connect 18 0 17 0;
+#X connect 21 0 2 0;
diff --git a/help/vowel~-help.pd b/help/vowel~-help.pd
new file mode 100644
index 0000000..57f6f08
--- /dev/null
+++ b/help/vowel~-help.pd
@@ -0,0 +1,45 @@
+#N canvas 308 311 400 400 12;
+#X text 60 35 simple formant filter;
+#X text 202 11 arg<vowelnumber>;
+#X obj 62 78 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 0 1
+;
+#X obj 62 96 metro 200;
+#X obj 62 120 random 440;
+#X msg 195 95 0;
+#X msg 195 117 1;
+#X msg 195 139 2;
+#X msg 195 162 3;
+#X msg 194 185 4;
+#X obj 193 212 nbx 5 14 0 100 0 0 empty empty empty 0 -6 0 10 -262144
+-1 -1 0 256;
+#X obj 62 294 *~;
+#X obj 193 275 line~;
+#X obj 193 252 pack 0 50;
+#X obj 193 230 dbtorms;
+#X obj 62 329 dac~;
+#X text 232 93 ->a;
+#X text 233 117 ->e;
+#X text 232 138 ->i;
+#X text 231 162 ->o;
+#X text 231 184 ->u;
+#X obj 62 145 phasor~ 220;
+#X text 190 315 sIgpAck 0.02;
+#X obj 62 205 sp.vowel~ 0;
+#X text 151 330 2003 www.weiss-archiv.de;
+#X text 60 13 ---sp.vowel~---;
+#X connect 2 0 3 0;
+#X connect 3 0 4 0;
+#X connect 4 0 21 0;
+#X connect 5 0 23 1;
+#X connect 6 0 23 1;
+#X connect 7 0 23 1;
+#X connect 8 0 23 1;
+#X connect 9 0 23 1;
+#X connect 10 0 14 0;
+#X connect 11 0 15 0;
+#X connect 11 0 15 1;
+#X connect 12 0 11 1;
+#X connect 13 0 12 0;
+#X connect 14 0 13 0;
+#X connect 21 0 23 0;
+#X connect 23 0 11 0;
diff --git a/source/chop~.c b/source/chop~.c
new file mode 100644
index 0000000..df2786c
--- /dev/null
+++ b/source/chop~.c
@@ -0,0 +1,67 @@
+/* sIgpAck
+ * for
+ * pure-data
+ * www.weiss-archiv.de */
+
+#include "m_pd.h"
+#ifdef _MSC_VER
+#pragma warning( disable : 4244 )
+#pragma warning( disable : 4305 )
+#endif
+
+// ------------------------ sp.chop~ -----------------------------
+// signal chopping modulator
+
+static t_class *chop_tilde_class;
+
+typedef struct _chop_tilde
+{
+ t_object x_obj;
+ t_sample x_factor;
+ float x_f;
+} t_chop_tilde;
+
+static void *chop_tilde_new(t_floatarg factor)
+{
+ t_chop_tilde *x = (t_chop_tilde *)pd_new(chop_tilde_class);
+ x->x_factor = factor;
+ outlet_new(&x->x_obj, gensym("signal"));
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_signal, &s_signal);
+ floatinlet_new(&x->x_obj, &x->x_factor);
+ x->x_f = 0;
+ if(factor) x->x_factor = factor;
+ else x->x_factor = 0;
+ return (x);
+}
+
+static t_int *chop_tilde_perform(t_int *w)
+{
+ t_chop_tilde *x = (t_chop_tilde *)(w[1]);
+ t_float *in1 = (t_float *)(w[2]);
+ t_float *in2 = (t_float *)(w[3]);
+ t_float *out = (t_float *)(w[4]);
+ int n = (int)(w[5]);
+ float f, m, value;
+ while (n--)
+ {
+ f = *in1++;
+ m = *in2++;
+ if(m > 0.) value = f * x->x_factor;
+ else value = f;
+ *out++ = value;
+ }
+ return (w+6);
+}
+
+static void chop_tilde_dsp(t_chop_tilde *x, t_signal **sp)
+{
+ dsp_add(chop_tilde_perform, 5, x, sp[0]->s_vec, sp[1]->s_vec, sp[2]->s_vec, sp[0]->s_n);
+}
+
+void chop_tilde_setup(void)
+{
+ chop_tilde_class = class_new(gensym("sp.chop~"), (t_newmethod)chop_tilde_new, 0,
+ sizeof(t_chop_tilde), 0, A_DEFFLOAT, 0);
+ CLASS_MAINSIGNALIN(chop_tilde_class, t_chop_tilde, x_f);
+ class_addmethod(chop_tilde_class, (t_method)chop_tilde_dsp, gensym("dsp"), 0);
+}
diff --git a/source/decimate~.c b/source/decimate~.c
new file mode 100644
index 0000000..b7fb073
--- /dev/null
+++ b/source/decimate~.c
@@ -0,0 +1,76 @@
+/* sIgpAck
+ * for
+ * pure-data
+ * www.weiss-archiv.de */
+
+#include "m_pd.h"
+#ifdef _MSC_VER
+#pragma warning( disable : 4244 )
+#pragma warning( disable : 4305 )
+#endif
+
+// ------------------------ sp.decimate~ -----------------------------
+// signal decimation
+// code from musicdsp.org posted by tobybear
+
+static t_class *decimate_tilde_class;
+
+typedef struct _decimate_tilde
+{
+ t_object x_obj;
+ t_sample x_rate;
+ t_sample x_bits;
+ float x_f;
+} t_decimate_tilde;
+
+static void *decimate_tilde_new(t_floatarg rate, t_floatarg bits)
+{
+ t_decimate_tilde *x = (t_decimate_tilde *)pd_new(decimate_tilde_class);
+ x->x_rate = rate;
+ x->x_bits = bits;
+ outlet_new(&x->x_obj, gensym("signal"));
+ floatinlet_new(&x->x_obj, &x->x_rate);
+ floatinlet_new(&x->x_obj, &x->x_bits);
+ x->x_f = 0;
+ if (rate) x->x_rate = rate;
+ else x->x_rate = 0.5;
+ if (bits) x->x_bits = bits;
+ else x->x_bits = 16;
+ return (x);
+}
+
+static t_int *decimate_tilde_perform(t_int *w)
+{
+ t_decimate_tilde *x = (t_decimate_tilde *)(w[1]);
+ t_float *in = (t_float *)(w[2]);
+ t_float *out = (t_float *)(w[3]);
+ int n = (int)(w[4]);
+ float f;
+ long int m=1<<(int)(x->x_bits-1);
+ float y=0, cnt=0;
+ while (n--)
+ {
+ f = *in++;
+ cnt+=x->x_rate;
+ if (cnt>=1)
+ {
+ cnt-=1;
+ y=(long int)(f*m)/(float)m;
+ }
+ *out++ = y;
+ }
+ return (w+5);
+}
+
+static void decimate_tilde_dsp(t_decimate_tilde *x, t_signal **sp)
+{
+ dsp_add(decimate_tilde_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+void decimate_tilde_setup(void)
+{
+ decimate_tilde_class = class_new(gensym("sp.decimate~"), (t_newmethod)decimate_tilde_new, 0,
+ sizeof(t_decimate_tilde), 0, A_DEFFLOAT, A_DEFFLOAT, 0);
+ CLASS_MAINSIGNALIN(decimate_tilde_class, t_decimate_tilde, x_f);
+ class_addmethod(decimate_tilde_class, (t_method)decimate_tilde_dsp, gensym("dsp"), 0);
+}
diff --git a/source/diode~.c b/source/diode~.c
new file mode 100644
index 0000000..b024da1
--- /dev/null
+++ b/source/diode~.c
@@ -0,0 +1,78 @@
+/* sIgpAck
+ * for
+ * pure-data
+ * www.weiss-archiv.de */
+
+#include "m_pd.h"
+#include <math.h>
+#ifdef _MSC_VER
+#pragma warning( disable : 4244 )
+#pragma warning( disable : 4305 )
+#endif
+
+/* ------------------------ sp.diode~ ----------------------------- */
+/* Mangles the signal as if it had been passed through a diode rectifier network.*/
+/* code from swh_plugins by steve harris www.plugin.org.uk */
+
+static t_class *diode_tilde_class;
+
+typedef struct _diode_tilde
+{
+ t_object x_obj;
+ t_sample x_mode;//0=none,1=halfWave,2=fullWave
+ float x_f;
+} t_diode_tilde;
+
+static void *diode_tilde_new(t_floatarg mode)
+{
+ t_diode_tilde *x = (t_diode_tilde *)pd_new(diode_tilde_class);
+ x->x_mode = mode;
+ outlet_new(&x->x_obj, gensym("signal"));
+ floatinlet_new(&x->x_obj, &x->x_mode);
+ x->x_f = 0;
+ if(mode) x->x_mode = mode;
+ else x->x_mode = 0;
+ return (x);
+}
+
+static t_int *diode_tilde_perform(t_int *w)
+{
+ t_diode_tilde *x = (t_diode_tilde *)(w[1]);
+ t_float *in = (t_float *)(w[2]);
+ t_float *out = (t_float *)(w[3]);
+ int n = (int)(w[4]);
+ float f, value;
+ while (n--)
+ {
+ f = *in++;
+ if(x->x_mode >= 0.0f && x->x_mode < 1.0f) {
+ value = ((1.0f - x->x_mode) * f + (x->x_mode * (f > 0.0f ? f : 0.0f)));
+ }
+ else if (x->x_mode >= 1.0f && x->x_mode < 2.0f) {
+ float fac = x->x_mode - 1.0f;
+ value = ((1.0f - fac) * (f > 0 ? f : 0.0)) + (fac * fabs(f));
+ }
+ else if (x->x_mode >= 2) {
+ float fac = x->x_mode < 3 ? x->x_mode - 2 : 1.0;
+ value = (1.0 - fac) * fabs(f);
+ }
+ else {
+ value = f;
+ }
+ *out++ = value;
+ }
+ return (w+5);
+}
+
+static void diode_tilde_dsp(t_diode_tilde *x, t_signal **sp)
+{
+ dsp_add(diode_tilde_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+void diode_tilde_setup(void)
+{
+ diode_tilde_class = class_new(gensym("sp.diode~"), (t_newmethod)diode_tilde_new, 0,
+ sizeof(t_diode_tilde), 0, A_DEFFLOAT, 0);
+ CLASS_MAINSIGNALIN(diode_tilde_class, t_diode_tilde, x_f);
+ class_addmethod(diode_tilde_class, (t_method)diode_tilde_dsp, gensym("dsp"), 0);
+}
diff --git a/source/foldback~.c b/source/foldback~.c
new file mode 100644
index 0000000..4101a5a
--- /dev/null
+++ b/source/foldback~.c
@@ -0,0 +1,70 @@
+/* sIgpAck
+ * for
+ * pure-data
+ * www.weiss-archiv.de */
+
+#include "m_pd.h"
+#ifdef _MSC_VER
+#pragma warning( disable : 4244 )
+#pragma warning( disable : 4305 )
+#endif
+
+/* ------------------------ sp.foldback~ ----------------------------- */
+/* signal mirror */
+
+static t_class *foldback_tilde_class;
+
+typedef struct _foldback_tilde
+{
+ t_object x_obj;
+ t_sample x_low;
+ t_sample x_high;
+ float x_f;
+} t_foldback_tilde;
+
+static void *foldback_tilde_new(t_floatarg low, t_floatarg high)
+{
+ t_foldback_tilde *x = (t_foldback_tilde *)pd_new(foldback_tilde_class);
+ x->x_low = low;
+ x->x_high = high;
+ outlet_new(&x->x_obj, gensym("signal"));
+ floatinlet_new(&x->x_obj, &x->x_low);
+ floatinlet_new(&x->x_obj, &x->x_high);
+ x->x_f = 0;
+ if(low) x->x_low = low;
+ else x->x_low = -1;
+ if(high) x->x_high = high;
+ else x->x_high = 1;
+ return (x);
+}
+
+static t_int *foldback_tilde_perform(t_int *w)
+{
+ t_foldback_tilde *x = (t_foldback_tilde *)(w[1]);
+ t_float *in = (t_float *)(w[2]);
+ t_float *out = (t_float *)(w[3]);
+ int n = (int)(w[4]);
+ float f, value;
+ while (n--)
+ {
+ f = *in++;
+ if(f < x->x_low) value = (f - ((f - x->x_low) * 2));
+ else if(f > x->x_high) value = (f - ((f - x->x_high) * 2));
+ else value = f;
+ *out++ = value;
+ }
+ return (w+5);
+}
+
+static void foldback_tilde_dsp(t_foldback_tilde *x, t_signal **sp)
+{
+ dsp_add(foldback_tilde_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+void foldback_tilde_setup(void)
+{
+ foldback_tilde_class = class_new(gensym("sp.foldback~"), (t_newmethod)foldback_tilde_new, 0,
+ sizeof(t_foldback_tilde), 0, A_DEFFLOAT, A_DEFFLOAT, 0);
+ CLASS_MAINSIGNALIN(foldback_tilde_class, t_foldback_tilde, x_f);
+ class_addmethod(foldback_tilde_class, (t_method)foldback_tilde_dsp, gensym("dsp"), 0);
+}
diff --git a/source/foldover~.c b/source/foldover~.c
new file mode 100644
index 0000000..7741c08
--- /dev/null
+++ b/source/foldover~.c
@@ -0,0 +1,71 @@
+/* sIgpAck
+ * for
+ * pure-data
+ * www.weiss-archiv.de */
+
+#include "m_pd.h"
+#ifdef _MSC_VER
+#pragma warning( disable : 4244 )
+#pragma warning( disable : 4305 )
+#endif
+
+/* ------------------------ sp.foldover~ ----------------------------- */
+/* foldover distortion */
+/* code from swh_plugins by steve harris www.plugin.org.uk */
+
+static t_class *foldover_tilde_class;
+
+typedef struct _foldover_tilde
+{
+ t_object x_obj;
+ t_sample x_drive_p;
+ t_sample x_push;
+ float x_f;
+} t_foldover_tilde;
+
+static void *foldover_tilde_new(t_floatarg drive_p, t_floatarg push)
+{
+ t_foldover_tilde *x = (t_foldover_tilde *)pd_new(foldover_tilde_class);
+ x->x_drive_p = drive_p;
+ x->x_push = push;
+ outlet_new(&x->x_obj, gensym("signal"));
+ floatinlet_new(&x->x_obj, &x->x_drive_p);
+ floatinlet_new(&x->x_obj, &x->x_push);
+ x->x_f = 0;
+ if(drive_p) x->x_drive_p = drive_p;
+ else x->x_drive_p = 0;
+ if(push) x->x_push = push;
+ else x->x_push = 0;
+ return (x);
+}
+
+static t_int *foldover_tilde_perform(t_int *w)
+{
+ t_foldover_tilde *x = (t_foldover_tilde *)(w[1]);
+ t_float *in = (t_float *)(w[2]);
+ t_float *out = (t_float *)(w[3]);
+ int n = (int)(w[4]);
+ float f, value, y;
+ float drive = x->x_drive_p + 1.0f;
+ while (n--)
+ {
+ f = *in++;
+ y = f * drive + x->x_push;
+ value = 1.5f * y - 0.5f * y * y *y;
+ *out++ = value;
+ }
+ return (w+5);
+}
+
+static void foldover_tilde_dsp(t_foldover_tilde *x, t_signal **sp)
+{
+ dsp_add(foldover_tilde_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+void foldover_tilde_setup(void)
+{
+ foldover_tilde_class = class_new(gensym("sp.foldover~"), (t_newmethod)foldover_tilde_new, 0,
+ sizeof(t_foldover_tilde), 0, A_DEFFLOAT, A_DEFFLOAT, 0);
+ CLASS_MAINSIGNALIN(foldover_tilde_class, t_foldover_tilde, x_f);
+ class_addmethod(foldover_tilde_class, (t_method)foldover_tilde_dsp, gensym("dsp"), 0);
+}
diff --git a/source/freqdiv~.c b/source/freqdiv~.c
new file mode 100644
index 0000000..fa6ba12
--- /dev/null
+++ b/source/freqdiv~.c
@@ -0,0 +1,100 @@
+/* sIgpAck
+ * for
+ * pure-data
+ * www.weiss-archiv.de */
+
+#include "m_pd.h"
+#include <math.h>
+#ifdef _MSC_VER
+#pragma warning( disable : 4244 )
+#pragma warning( disable : 4305 )
+#endif
+
+/* ------------------------ sp.freqdiv~ ----------------------------- */
+/* frequency divider */
+/* code from swh_plugins by steve harris www.plugins.org.uk */
+
+static t_class *freqdiv_tilde_class;
+
+typedef struct _freqdiv_tilde
+{
+ t_object x_obj;
+ t_sample x_denominate;
+ t_sample x_amp;
+ float x_count;
+ t_sample x_lamp;
+ t_sample x_last;
+ t_sample x_out;
+ int x_zeroxs;
+ float x_f;
+} t_freqdiv_tilde;
+
+static void *freqdiv_tilde_new(t_floatarg denominate)
+{
+ t_freqdiv_tilde *x = (t_freqdiv_tilde *)pd_new(freqdiv_tilde_class);
+ x->x_denominate = denominate;
+ outlet_new(&x->x_obj, gensym("signal"));
+ floatinlet_new(&x->x_obj, &x->x_denominate);
+ x->x_f = 0;
+ x->x_amp = 0;
+ x->x_count = 0;
+ x->x_lamp = 0;
+ x->x_last = 0;
+ x->x_out = 0;
+ x->x_zeroxs = 0;
+ if (denominate) x->x_denominate = denominate;
+ else x->x_denominate = 1;
+ return (x);
+}
+
+static t_int *freqdiv_tilde_perform(t_int *w)
+{
+ t_freqdiv_tilde *x = (t_freqdiv_tilde *)(w[1]);
+ t_float *in = (t_float *)(w[2]);
+ t_float *out = (t_float *)(w[3]);
+ int n = (int)(w[4]);
+ float f;
+ int den = (int)x->x_denominate;
+ while (n--)
+ {
+ f = *in++;
+ x->x_count += 1.0f;
+ if ((f > 0.0f && x->x_last <= 0.0f) || (f < 0.0f && x->x_last >= 0.0))
+ {
+ x->x_zeroxs++;
+ if (den == 1)
+ {
+ x->x_out = x->x_out > 0.0f ? -1.0f : 1.0f;
+ x->x_lamp = x->x_amp / x->x_count;
+ x->x_zeroxs = 0;
+ x->x_count = 0;
+ x->x_amp = 0;
+ }
+ }
+ x->x_amp += fabs(f);
+ if (den > 1 && (x->x_zeroxs % den) == den-1)
+ {
+ x->x_out = x->x_out > 0.0f ? -1.0f : 1.0f;
+ x->x_lamp = x->x_amp / x->x_count;
+ x->x_zeroxs = 0;
+ x->x_count = 0;
+ x->x_amp = 0;
+ }
+ x->x_last = f;
+ *out++ = x->x_out * x->x_lamp;
+ }
+ return (w+5);
+}
+
+static void freqdiv_tilde_dsp(t_freqdiv_tilde *x, t_signal **sp)
+{
+ dsp_add(freqdiv_tilde_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+void freqdiv_tilde_setup(void)
+{
+ freqdiv_tilde_class = class_new(gensym("sp.freqdiv~"), (t_newmethod)freqdiv_tilde_new, 0,
+ sizeof(t_freqdiv_tilde), 0, A_DEFFLOAT, 0);
+ CLASS_MAINSIGNALIN(freqdiv_tilde_class, t_freqdiv_tilde, x_f);
+ class_addmethod(freqdiv_tilde_class, (t_method)freqdiv_tilde_dsp, gensym("dsp"), 0);
+}
diff --git a/source/freqshift~.c b/source/freqshift~.c
new file mode 100644
index 0000000..a7460c5
--- /dev/null
+++ b/source/freqshift~.c
@@ -0,0 +1,197 @@
+/* sIgpAck
+ * for
+ * pure-data
+ * www.weiss-archiv.de */
+
+#include "m_pd.h"
+#include <math.h>
+#ifdef _MSC_VER
+#pragma warning( disable : 4244 )
+#pragma warning( disable : 4305 )
+#define M_PI 3.14159265358979323846
+#endif
+
+/* ------------------------ sp.freqshift~ ----------------------------- */
+/* frequency shifter */
+/* code from swh_plugins by steve harris www.plugins.org.uk */
+
+#define SIN_T_SIZE 64
+#define D_SIZE 256
+#define NZEROS 200
+
+static t_class *freqshift_tilde_class;
+
+typedef struct _freqshift_tilde
+{
+ t_object x_obj;
+ t_float x_shift;//[0 - 5000]
+ float *x_delay;
+ unsigned int x_dptr;
+ t_float x_fs;
+ t_float x_last_shift;
+ t_float x_phi;
+ float *x_sint;
+ float x_f;
+} t_freqshift_tilde;
+
+static void *freqshift_tilde_new(t_floatarg shift)
+{
+ unsigned int i;
+
+ t_freqshift_tilde *x = (t_freqshift_tilde *)pd_new(freqshift_tilde_class);
+ //x->x_shift = shift;
+ outlet_new(&x->x_obj, gensym("signal"));
+ outlet_new(&x->x_obj, gensym("signal"));
+ floatinlet_new(&x->x_obj, &x->x_shift);
+ x->x_fs = sys_getsr();
+ x->x_delay = (float *)getbytes(D_SIZE * sizeof(float));
+ x->x_sint = (float *)getbytes(SIN_T_SIZE * sizeof(float));
+ x->x_dptr = 0;
+ x->x_phi = 0.0f;
+ x->x_last_shift = 0.0f;
+ x->x_f = 0;
+ for (i = 0; i < SIN_T_SIZE; i++) {
+ x->x_sint[i] = sin(2.0f * M_PI * (float)i / (float)SIN_T_SIZE);
+ }
+ if (shift) x->x_shift = shift;
+ else x->x_shift = 0;
+ return (x);
+}
+
+/* The non-zero taps of the Hilbert transformer */
+static float xcoeffs[] = {
+ +0.0008103736f, +0.0008457886f, +0.0009017196f, +0.0009793364f,
+ +0.0010798341f, +0.0012044365f, +0.0013544008f, +0.0015310235f,
+ +0.0017356466f, +0.0019696659f, +0.0022345404f, +0.0025318040f,
+ +0.0028630784f, +0.0032300896f, +0.0036346867f, +0.0040788644f,
+ +0.0045647903f, +0.0050948365f, +0.0056716186f, +0.0062980419f,
+ +0.0069773575f, +0.0077132300f, +0.0085098208f, +0.0093718901f,
+ +0.0103049226f, +0.0113152847f, +0.0124104218f, +0.0135991079f,
+ +0.0148917649f, +0.0163008758f, +0.0178415242f, +0.0195321089f,
+ +0.0213953037f, +0.0234593652f, +0.0257599469f, +0.0283426636f,
+ +0.0312667947f, +0.0346107648f, +0.0384804823f, +0.0430224431f,
+ +0.0484451086f, +0.0550553725f, +0.0633242001f, +0.0740128560f,
+ +0.0884368322f, +0.1090816773f, +0.1412745301f, +0.1988673273f,
+ +0.3326528346f, +0.9997730178f, -0.9997730178f, -0.3326528346f,
+ -0.1988673273f, -0.1412745301f, -0.1090816773f, -0.0884368322f,
+ -0.0740128560f, -0.0633242001f, -0.0550553725f, -0.0484451086f,
+ -0.0430224431f, -0.0384804823f, -0.0346107648f, -0.0312667947f,
+ -0.0283426636f, -0.0257599469f, -0.0234593652f, -0.0213953037f,
+ -0.0195321089f, -0.0178415242f, -0.0163008758f, -0.0148917649f,
+ -0.0135991079f, -0.0124104218f, -0.0113152847f, -0.0103049226f,
+ -0.0093718901f, -0.0085098208f, -0.0077132300f, -0.0069773575f,
+ -0.0062980419f, -0.0056716186f, -0.0050948365f, -0.0045647903f,
+ -0.0040788644f, -0.0036346867f, -0.0032300896f, -0.0028630784f,
+ -0.0025318040f, -0.0022345404f, -0.0019696659f, -0.0017356466f,
+ -0.0015310235f, -0.0013544008f, -0.0012044365f, -0.0010798341f,
+ -0.0009793364f, -0.0009017196f, -0.0008457886f, -0.0008103736f,
+};
+
+static float f_clamp(float x, float a, float b)
+{
+ const float x1 = fabs(x - a);
+ const float x2 = fabs(x - b);
+
+ x = x1 + a + b;
+ x -= x2;
+ x *= 0.5;
+
+ return x;
+}
+
+// Round float to int using IEEE int* hack
+static int f_round(float f) {
+ f += (3<<22);
+ return *((int*)&f) - 0x4b400000;
+}
+
+// Cubic interpolation function
+static float cube_interp(const float fr, const float inm1, const float
+ in, const float inp1, const float inp2)
+{
+ return in + 0.5f * fr * (inp1 - inm1 +
+ fr * (4.0f * inp1 + 2.0f * inm1 - 5.0f * in - inp2 +
+ fr * (3.0f * (in - inp1) - inm1 + inp2)));
+}
+
+static t_int *freqshift_tilde_perform(t_int *w)
+{
+ t_freqshift_tilde *x = (t_freqshift_tilde *)(w[1]);
+ t_float *in = (t_float *)(w[2]);
+ t_float *out1 = (t_float *)(w[3]);
+ t_float *out2 = (t_float *)(w[4]);
+ int n = (int)(w[5]);
+ float f, hilb, rm1, rm2, frac_p;
+ float shift_i = x->x_last_shift;
+ float sample_count = sys_getblksize();
+ unsigned int i;
+ int int_p;
+ const float shift_c = f_clamp(x->x_shift, 0.0f, 10000.0f);
+ const float shift_inc = (shift_c - x->x_last_shift) / (float)sample_count;
+ const float freq_fix = (float)SIN_T_SIZE / x->x_fs;
+ while (n--)
+ {
+ f = *in++;
+ x->x_delay[x->x_dptr] = f;
+ /* Perform the Hilbert FIR convolution
+ * (probably FFT would be faster) */
+ hilb = 0.0f;
+ for (i = 0; i <= NZEROS/2; i++) {
+ hilb += (xcoeffs[i] * x->x_delay[(x->x_dptr - i*2) & (D_SIZE - 1)]);
+ }
+
+ /* Calcuate the table positions for the sine modulator */
+ int_p = f_round(floor(x->x_phi));
+
+ /* Calculate ringmod1, the transformed input modulated with a shift Hz
+ * sinewave. This creates a +180 degree sideband at source-shift Hz and
+ * a 0 degree sindeband at source+shift Hz */
+ frac_p = x->x_phi - int_p;
+ rm1 = hilb * cube_interp(frac_p, x->x_sint[int_p], x->x_sint[int_p+1],
+ x->x_sint[int_p+2], x->x_sint[int_p+3]);
+
+ /* Calcuate the table positions for the cosine modulator */
+ int_p = (int_p + SIN_T_SIZE / 4) & (SIN_T_SIZE - 1);
+
+ /* Calculate ringmod2, the delayed input modulated with a shift Hz
+ * cosinewave. This creates a 0 degree sideband at source+shift Hz
+ * and a -180 degree sindeband at source-shift Hz */
+ rm2 = x->x_delay[(x->x_dptr - 100) & (D_SIZE - 1)] * cube_interp(frac_p,
+ x->x_sint[int_p], x->x_sint[int_p+1], x->x_sint[int_p+2], x->x_sint[int_p+3]);
+
+ /* Output the sum and differences of the ringmods. The +/-180 degree
+ * sidebands cancel (more of less) and just leave the shifted
+ * components */
+ *out1++ = (rm2 - rm1) * 0.5f; /*downshifting*/
+ *out2++ = (rm2 + rm1) * 0.5f; /*upshifting*/
+
+ x->x_dptr = (x->x_dptr + 1) & (D_SIZE - 1);
+ x->x_phi += shift_i * freq_fix;
+ while (x->x_phi > SIN_T_SIZE) {
+ x->x_phi -= SIN_T_SIZE;
+ }
+ shift_i += shift_inc;
+ }
+ return (w+6);
+}
+
+static void freqshift_tilde_dsp(t_freqshift_tilde *x, t_signal **sp)
+{
+ dsp_add(freqshift_tilde_perform, 5, x, sp[0]->s_vec, sp[1]->s_vec, sp[2]->s_vec, sp[0]->s_n);
+}
+
+static void freqshift_tilde_free(t_freqshift_tilde *x)
+{
+ if(x->x_delay)
+ freebytes(x->x_delay, D_SIZE * sizeof(float));
+ if(x->x_sint)
+ freebytes(x->x_sint, SIN_T_SIZE + 4 * sizeof(float));
+}
+
+void freqshift_tilde_setup(void)
+{
+ freqshift_tilde_class = class_new(gensym("sp.freqshift~"), (t_newmethod)freqshift_tilde_new, (t_method)freqshift_tilde_free,
+ sizeof(t_freqshift_tilde), 0, A_DEFFLOAT, 0);
+ CLASS_MAINSIGNALIN(freqshift_tilde_class, t_freqshift_tilde, x_f);
+ class_addmethod(freqshift_tilde_class, (t_method)freqshift_tilde_dsp, gensym("dsp"), 0);
+}
diff --git a/source/harmgen~.c b/source/harmgen~.c
new file mode 100644
index 0000000..2ab4851
--- /dev/null
+++ b/source/harmgen~.c
@@ -0,0 +1,161 @@
+/* sIgpAck
+ * for
+ * pure-data
+ * www.weiss-archiv.de */
+
+#include "m_pd.h"
+#include <math.h>
+#ifdef _MSC_VER
+#pragma warning( disable : 4244 )
+#pragma warning( disable : 4305 )
+#endif
+#define HARMONICS 11
+
+// ------------------------ sp.harmgen~ -----------------------------
+// harmonic generator
+// code from swh_plugins by steve harris www.plugins.org.uk
+
+static t_class *harmgen_tilde_class;
+
+typedef struct _harmgen_tilde
+{
+ t_object x_obj;
+ t_sample x_mag1;
+ t_sample x_mag2;
+ t_sample x_mag3;
+ t_sample x_mag4;
+ t_sample x_mag5;
+ t_sample x_mag6;
+ t_sample x_mag7;
+ t_sample x_mag8;
+ t_sample x_mag9;
+ t_sample x_mag10;
+ float x_itm;
+ float x_otm;
+ float x_f;
+} t_harmgen_tilde;
+
+static void *harmgen_tilde_new(t_floatarg mag1, t_floatarg mag2, t_floatarg mag3, t_floatarg mag4, t_floatarg mag5, t_floatarg mag6, t_floatarg mag7, t_floatarg mag8, t_floatarg mag9, t_floatarg mag10)
+{
+ t_harmgen_tilde *x = (t_harmgen_tilde *)pd_new(harmgen_tilde_class);
+ outlet_new(&x->x_obj, gensym("signal"));
+ floatinlet_new(&x->x_obj, &x->x_mag1);
+ floatinlet_new(&x->x_obj, &x->x_mag2);
+ floatinlet_new(&x->x_obj, &x->x_mag3);
+ floatinlet_new(&x->x_obj, &x->x_mag4);
+ floatinlet_new(&x->x_obj, &x->x_mag5);
+ floatinlet_new(&x->x_obj, &x->x_mag6);
+ floatinlet_new(&x->x_obj, &x->x_mag7);
+ floatinlet_new(&x->x_obj, &x->x_mag8);
+ floatinlet_new(&x->x_obj, &x->x_mag9);
+ floatinlet_new(&x->x_obj, &x->x_mag10);
+ x->x_f = 0;
+ if(mag1) x->x_mag1 = mag1;
+ else x->x_mag1 = 1;
+ if(mag2) x->x_mag2 = mag2;
+ else x->x_mag2 = 1;
+ if(mag3) x->x_mag3 = mag3;
+ else x->x_mag3 = 1;
+ if(mag4) x->x_mag4 = mag4;
+ else x->x_mag4 = 1;
+ if(mag5) x->x_mag5 = mag5;
+ else x->x_mag5 = 1;
+ if(mag6) x->x_mag6 = mag6;
+ else x->x_mag6 = 1;
+ if(mag7) x->x_mag7 = mag7;
+ else x->x_mag7 = 1;
+ if(mag8) x->x_mag8 = mag8;
+ else x->x_mag8 = 1;
+ if(mag9) x->x_mag9 = mag9;
+ else x->x_mag9 = 1;
+ if(mag10) x->x_mag10 = mag10;
+ else x->x_mag10 = 1;
+ return (x);
+}
+
+/* Calculate Chebychev coefficents from partial magnitudes, adapted from
+ * example in Num. Rec. */
+void chebpc(float c[], float d[])
+{
+ int k, j;
+ float sv, dd[HARMONICS];
+
+ for (j = 0; j < HARMONICS; j++) {
+ d[j] = dd[j] = 0.0;
+ }
+
+ d[0] = c[HARMONICS - 1];
+
+ for (j = HARMONICS - 2; j >= 1; j--) {
+ for (k = HARMONICS - j; k >= 1; k--) {
+ sv = d[k];
+ d[k] = 2.0 * d[k - 1] - dd[k];
+ dd[k] = sv;
+ }
+ sv = d[0];
+ d[0] = -dd[0] + c[j];
+ dd[0] = sv;
+ }
+
+ for (j = HARMONICS - 1; j >= 1; j--) {
+ d[j] = d[j - 1] - dd[j];
+ }
+ d[0] = -dd[0] + 0.5 * c[0];
+}
+
+static t_int *harmgen_tilde_perform(t_int *w)
+{
+ t_harmgen_tilde *x = (t_harmgen_tilde *)(w[1]);
+ t_float *in1 = (t_float *)(w[2]);
+ t_float *out = (t_float *)(w[3]);
+ int n = (int)(w[4]);
+ unsigned long i;
+ float mag_fix, y, f, value;
+ float mag[HARMONICS] = {0.0f, x->x_mag1, x->x_mag2, x->x_mag3, x->x_mag4, x->x_mag5, x->x_mag6,
+ x->x_mag7, x->x_mag8, x->x_mag9, x->x_mag10};
+ float p[HARMONICS];
+
+ // Normalise magnitudes
+ mag_fix = (fabs(x->x_mag1) + fabs(x->x_mag2) + fabs(x->x_mag3) + fabs(x->x_mag4) +
+ fabs(x->x_mag5) + fabs(x->x_mag6) + fabs(x->x_mag7) + fabs(x->x_mag8) +
+ fabs(x->x_mag9) + fabs(x->x_mag10));
+ if (mag_fix < 1.0f) {
+ mag_fix = 1.0f;
+ } else {
+ mag_fix = 1.0f / mag_fix;
+ }
+ for (i=0; i<HARMONICS; i++) {
+ mag[i] *= mag_fix;
+ }
+
+ // Calculate polynomial coefficients, using Chebychev aproximation
+ chebpc(mag, p);
+ while (n--)
+ {
+ f = *in1++;
+
+ // Calculate the polynomial using Horner's Rule
+ y = p[0] + (p[1] + (p[2] + (p[3] + (p[4] + (p[5] + (p[6] + (p[7] +
+ (p[8] + (p[9] + p[10] * f) * f) * f) * f) * f) * f) * f) * f) *
+ f) * f;
+
+ // DC offset remove (odd harmonics cause DC offset)
+ x->x_otm = 0.999f * x->x_otm + y - x->x_itm;
+ x->x_itm = y;
+ *out++ = x->x_otm;
+ }
+ return (w+5);
+}
+
+static void harmgen_tilde_dsp(t_harmgen_tilde *x, t_signal **sp)
+{
+ dsp_add(harmgen_tilde_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+void harmgen_tilde_setup(void)
+{
+ harmgen_tilde_class = class_new(gensym("sp.harmgen~"), (t_newmethod)harmgen_tilde_new, 0,
+ sizeof(t_harmgen_tilde), 0, A_GIMME, 0);
+ CLASS_MAINSIGNALIN(harmgen_tilde_class, t_harmgen_tilde, x_f);
+ class_addmethod(harmgen_tilde_class, (t_method)harmgen_tilde_dsp, gensym("dsp"), 0);
+}
diff --git a/source/rectify~.c b/source/rectify~.c
new file mode 100644
index 0000000..d2dda88
--- /dev/null
+++ b/source/rectify~.c
@@ -0,0 +1,61 @@
+/* sIgpAck
+ * for
+ * pure-data
+ * www.weiss-archiv.de */
+
+#include "m_pd.h"
+#ifdef _MSC_VER
+#pragma warning( disable : 4244 )
+#pragma warning( disable : 4305 )
+#endif
+
+/* ------------------------ sp.rectify~ ----------------------------- */
+/* flips negative signal values to positive */
+
+static t_class *rectify_tilde_class;
+
+typedef struct _rectify_tilde
+{
+ t_object x_obj;
+ float x_f;
+} t_rectify_tilde;
+
+static void *rectify_tilde_new(void)
+{
+ t_rectify_tilde *x = (t_rectify_tilde *)pd_new(rectify_tilde_class);
+ outlet_new(&x->x_obj, gensym("signal"));
+ x->x_f = 0;
+ return (x);
+}
+
+static t_int *rectify_tilde_perform(t_int *w)
+{
+ t_rectify_tilde *x = (t_rectify_tilde *)(w[1]);
+ t_float *in = (t_float *)(w[2]);
+ t_float *out = (t_float *)(w[3]);
+ int n = (int)(w[4]);
+ float f, value;
+ while (n--)
+ {
+ f = *in++;
+ if (f < 0)
+ value = f * -1;
+ else
+ value = f;
+ *out++ = value;
+ }
+ return (w+5);
+}
+
+static void rectify_tilde_dsp(t_rectify_tilde *x, t_signal **sp)
+{
+ dsp_add(rectify_tilde_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+void rectify_tilde_setup(void)
+{
+ rectify_tilde_class = class_new(gensym("sp.rectify~"), (t_newmethod)rectify_tilde_new, 0,
+ sizeof(t_rectify_tilde), 0, A_DEFFLOAT, 0);
+ CLASS_MAINSIGNALIN(rectify_tilde_class, t_rectify_tilde, x_f);
+ class_addmethod(rectify_tilde_class, (t_method)rectify_tilde_dsp, gensym("dsp"), 0);
+}
diff --git a/source/round~.c b/source/round~.c
new file mode 100644
index 0000000..e19d134
--- /dev/null
+++ b/source/round~.c
@@ -0,0 +1,64 @@
+/* sIgpAck
+ * for
+ * pure-data
+ * www.weiss-archiv.de */
+
+#include "m_pd.h"
+#ifdef _MSC_VER
+#pragma warning( disable : 4244 )
+#pragma warning( disable : 4305 )
+#endif
+
+/* ------------------------ sp.round~ ----------------------------- */
+/* simple rounder */
+
+static t_class *round_tilde_class;
+
+typedef struct _round_tilde
+{
+ t_object x_obj;
+ t_sample x_coarse;
+ float x_f;
+} t_round_tilde;
+
+static void *round_tilde_new(t_floatarg coarse)
+{
+ t_round_tilde *x = (t_round_tilde *)pd_new(round_tilde_class);
+ x->x_coarse = coarse;
+ outlet_new(&x->x_obj, gensym("signal"));
+ floatinlet_new(&x->x_obj, &x->x_coarse);
+ x->x_f = 0;
+ if(coarse) x->x_coarse = coarse;
+ else x->x_coarse = 1;
+ return (x);
+}
+
+static t_int *round_tilde_perform(t_int *w)
+{
+ t_round_tilde *x = (t_round_tilde *)(w[1]);
+ t_float *in = (t_float *)(w[2]);
+ t_float *out = (t_float *)(w[3]);
+ int n = (int)(w[4]);
+ float f, mult, value;
+ while (n--)
+ {
+ f = *in++;
+ mult = f * x->x_coarse;
+ value = (int)mult / x->x_coarse;
+ *out++ = value;
+ }
+ return (w+5);
+}
+
+static void round_tilde_dsp(t_round_tilde *x, t_signal **sp)
+{
+ dsp_add(round_tilde_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+void round_tilde_setup(void)
+{
+ round_tilde_class = class_new(gensym("sp.round~"), (t_newmethod)round_tilde_new, 0,
+ sizeof(t_round_tilde), 0, A_DEFFLOAT, 0);
+ CLASS_MAINSIGNALIN(round_tilde_class, t_round_tilde, x_f);
+ class_addmethod(round_tilde_class, (t_method)round_tilde_dsp, gensym("dsp"), 0);
+}
diff --git a/source/sIgpAck.c b/source/sIgpAck.c
new file mode 100644
index 0000000..e666e75
--- /dev/null
+++ b/source/sIgpAck.c
@@ -0,0 +1,58 @@
+#ifndef VERSION
+#define VERSION "0.03"
+#endif
+
+#include <m_pd.h>
+
+
+typedef struct _sigpack
+{
+ t_object x_obj;
+} t_sigpack;
+
+static t_class* sigpack_class;
+
+void chop_tilde_setup();
+void decimate_tilde_setup();
+void diode_tilde_setup();
+void foldback_tilde_setup();
+void foldover_tilde_setup();
+void freqdiv_tilde_setup();
+void freqshift_tilde_setup();
+void harmgen_tilde_setup();
+void rectify_tilde_setup();
+void round_tilde_setup();
+void saturate_tilde_setup();
+void sieve_tilde_setup();
+void split_tilde_setup();
+void ustep_tilde_setup();
+void vowel_tilde_setup();
+
+static void* sigpack_new(t_symbol* s) {
+ t_sigpack *x = (t_sigpack *)pd_new(sigpack_class);
+ return (x);
+}
+
+void sigpack_setup(void)
+{
+ sigpack_class = class_new(gensym("sIgpAck"), (t_newmethod)sigpack_new, 0,
+ sizeof(t_sigpack), 0,0);
+
+ chop_tilde_setup();
+ decimate_tilde_setup();
+ diode_tilde_setup();
+ foldback_tilde_setup();
+ foldover_tilde_setup();
+ freqdiv_tilde_setup();
+ freqshift_tilde_setup();
+ harmgen_tilde_setup();
+ rectify_tilde_setup();
+ round_tilde_setup();
+ saturate_tilde_setup();
+ sieve_tilde_setup();
+ split_tilde_setup();
+ ustep_tilde_setup();
+ vowel_tilde_setup();
+
+ post("sIgpAck"" "VERSION " weiss www.weiss-archiv.de");
+}
diff --git a/source/saturate~.c b/source/saturate~.c
new file mode 100644
index 0000000..809f7a0
--- /dev/null
+++ b/source/saturate~.c
@@ -0,0 +1,83 @@
+/* sIgpAck
+ * for
+ * pure-data
+ * www.weiss-archiv.de */
+
+#include "m_pd.h"
+#include <math.h>
+#ifdef _MSC_VER
+#pragma warning( disable : 4244 )
+#pragma warning( disable : 4305 )
+#endif
+
+/* ------------------------ sp.saturate~ ----------------------------- */
+/* signal soft saturation */
+/* code from www.musicdsp.org posted by bram de jong */
+
+static t_class *saturate_tilde_class;
+
+typedef struct _saturate_tilde
+{
+ t_object x_obj;
+ t_sample x_thresh;
+ float x_f;
+} t_saturate_tilde;
+
+static void *saturate_tilde_new(t_floatarg thresh)
+{
+ t_saturate_tilde *x = (t_saturate_tilde *)pd_new(saturate_tilde_class);
+ x->x_thresh = thresh;
+ outlet_new(&x->x_obj, gensym("signal"));
+ floatinlet_new(&x->x_obj, &x->x_thresh);
+ x->x_f = 0;
+ if(thresh) x->x_thresh = thresh;
+ else x->x_thresh = 1.;
+ return (x);
+}
+
+static float sigmoid(float x)
+{
+ if(fabs(x) < 1)
+ return x * (1.5f - 0.5f * x * x);
+ else
+ return x > 0.f ? 1.f : -1.f;
+}
+
+static t_int *saturate_tilde_perform(t_int *w)
+{
+ t_saturate_tilde *x = (t_saturate_tilde *)(w[1]);
+ t_float *in = (t_float *)(w[2]);
+ t_float *out = (t_float *)(w[3]);
+ int n = (int)(w[4]);
+ float f, value;
+ float t = x->x_thresh;
+ while (n--)
+ {
+ f = *in++;
+ if(fabs(f) < t)
+ value = f;
+ else
+ {
+ if(f > 0.f)
+ value = t + (1.f - t) * sigmoid((f - t)/((1 - t) * 1.5f));
+ else
+ value = -(t + (1.f - t) * sigmoid((-f - t)/((1 - t) * 1.5f)));
+ }
+ *out++ = value;
+ }
+ return (w+5);
+}
+
+static void saturate_tilde_dsp(t_saturate_tilde *x, t_signal **sp)
+{
+ dsp_add(saturate_tilde_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+void saturate_tilde_setup(void)
+{
+ saturate_tilde_class = class_new(gensym("sp.saturate~"), (t_newmethod)saturate_tilde_new, 0,
+ sizeof(t_saturate_tilde), 0, A_DEFFLOAT, 0);
+ CLASS_MAINSIGNALIN(saturate_tilde_class, t_saturate_tilde, x_f);
+ class_addmethod(saturate_tilde_class, (t_method)saturate_tilde_dsp, gensym("dsp"), 0);
+ class_addmethod(saturate_tilde_class, (t_method)saturate_tilde_dsp, gensym("sigmoid"), A_FLOAT, 0);
+}
diff --git a/source/sieve~.c b/source/sieve~.c
new file mode 100644
index 0000000..31ec10b
--- /dev/null
+++ b/source/sieve~.c
@@ -0,0 +1,105 @@
+/* sIgpAck
+ * for
+ * pure-data
+ * www.weiss-archiv.de */
+
+#include "m_pd.h"
+#ifdef _MSC_VER
+#pragma warning( disable : 4244 )
+#pragma warning( disable : 4305 )
+#endif
+
+/* ------------------------ sp.sieve~ ----------------------------- */
+/* sift samples */
+
+static t_class *sieve_tilde_class;
+
+typedef struct _sieve_tilde
+{
+ t_object x_obj;
+ t_sample x_mode;
+ t_sample x_sample;
+ t_sample x_last;
+ float x_f;
+} t_sieve_tilde;
+
+static void *sieve_tilde_new(t_floatarg mode, t_floatarg sample)
+{
+ t_sieve_tilde *x = (t_sieve_tilde *)pd_new(sieve_tilde_class);
+ x->x_mode = mode;
+ x->x_sample = sample;
+ outlet_new(&x->x_obj, gensym("signal"));
+ floatinlet_new(&x->x_obj, &x->x_mode);
+ floatinlet_new(&x->x_obj, &x->x_sample);
+ x->x_last = 0;
+ x->x_f = 0;
+ x->x_mode = 0;
+
+ if(mode) x->x_mode = mode;
+ if(x->x_mode > 1) x->x_mode = 1;
+ if(x->x_mode < 0) x->x_mode = 0;
+ return (x);
+}
+
+static float round(float in)
+{
+ float y, round;
+ int temp;
+ {
+ round = in * 10;
+ temp = round;
+ y = temp * 0.1;
+ }
+ return y;
+}
+
+static t_int *sieve_tilde_perform(t_int *w)
+{
+ t_sieve_tilde *x = (t_sieve_tilde *)(w[1]);
+ t_float *in = (t_float *)(w[2]);
+ t_float *out = (t_float *)(w[3]);
+ int n = (int)(w[4]);
+ float f;
+ int mode = x->x_mode;
+ while (n--)
+ {
+ f = *in++;
+ switch(mode){
+ case(0):
+ if (round(f) != round(x->x_sample))
+ {
+ *out++ = f;
+ x->x_last = f;
+ }
+ else
+ {
+ *out++ = x->x_last;
+ }
+ break;
+ case(1):
+ if (round(f) == round(x->x_sample))
+ {
+ *out++ = f;
+ x->x_last = f;
+ }
+ else
+ {
+ *out++ = x->x_last;
+ }
+ }
+ }
+ return (w+5);
+}
+
+static void sieve_tilde_dsp(t_sieve_tilde *x, t_signal **sp)
+{
+ dsp_add(sieve_tilde_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+void sieve_tilde_setup(void)
+{
+ sieve_tilde_class = class_new(gensym("sp.sieve~"), (t_newmethod)sieve_tilde_new, 0,
+ sizeof(t_sieve_tilde), 0, A_DEFFLOAT, A_DEFFLOAT, 0);
+ CLASS_MAINSIGNALIN(sieve_tilde_class, t_sieve_tilde, x_f);
+ class_addmethod(sieve_tilde_class, (t_method)sieve_tilde_dsp, gensym("dsp"), 0);
+}
diff --git a/source/split~.c b/source/split~.c
new file mode 100644
index 0000000..0fc5a9d
--- /dev/null
+++ b/source/split~.c
@@ -0,0 +1,72 @@
+/* sIgpAck
+ * for
+ * pure-data
+ * www.weiss-archiv.de */
+
+#include "m_pd.h"
+#ifdef _MSC_VER
+#pragma warning( disable : 4244 )
+#pragma warning( disable : 4305 )
+#endif
+
+/* ------------------------ sp.split~ ----------------------------- */
+/* signal splitter */
+
+static t_class *split_tilde_class;
+
+typedef struct _split_tilde
+{
+ t_object x_obj;
+ float x_f;
+ t_sample x_thres;
+} t_split_tilde;
+
+static void *split_tilde_new(t_floatarg thres)
+{
+ t_split_tilde *x = (t_split_tilde *)pd_new(split_tilde_class);
+ x->x_thres = thres;
+ outlet_new(&x->x_obj, gensym("signal"));
+ outlet_new(&x->x_obj, gensym("signal"));
+ floatinlet_new(&x->x_obj, &x->x_thres);
+ x->x_f = 0;
+ if(thres) x->x_thres = thres;
+ else x->x_thres = 0;
+ return (x);
+}
+
+static t_int *split_tilde_perform(t_int *w)
+{
+ t_split_tilde *x = (t_split_tilde *)(w[1]);
+ t_float *in = (t_float *)(w[2]);
+ t_float *out1 = (t_float *)(w[3]);
+ t_float *out2 = (t_float *)(w[4]);
+ int n = (int)(w[5]);
+ while (n--)
+ {
+ float f = *in++;
+ if(f < x->x_thres)
+ {
+ *out1++ = f;
+ *out2++ = 0;
+ }
+ else if(f >= x->x_thres)
+ {
+ *out1++ = 0;
+ *out2++ = f;
+ }
+ }
+ return (w+6);
+}
+
+static void split_tilde_dsp(t_split_tilde *x, t_signal **sp)
+{
+ dsp_add(split_tilde_perform, 5, x, sp[0]->s_vec, sp[1]->s_vec, sp[2]->s_vec, sp[0]->s_n);
+}
+
+void split_tilde_setup(void)
+{
+ split_tilde_class = class_new(gensym("sp.split~"), (t_newmethod)split_tilde_new, 0,
+ sizeof(t_split_tilde), 0, A_DEFFLOAT, 0);
+ CLASS_MAINSIGNALIN(split_tilde_class, t_split_tilde, x_f);
+ class_addmethod(split_tilde_class, (t_method)split_tilde_dsp, gensym("dsp"), 0);
+}
diff --git a/source/ustep~.c b/source/ustep~.c
new file mode 100644
index 0000000..d91ea1f
--- /dev/null
+++ b/source/ustep~.c
@@ -0,0 +1,83 @@
+/* sIgpAck
+ * for
+ * pure-data
+ * www.weiss-archiv.de */
+
+#include "m_pd.h"
+#ifdef _MSC_VER
+#pragma warning( disable : 4244 )
+#pragma warning( disable : 4305 )
+#endif
+
+/* ------------------------ sp.ustep~ ----------------------------- */
+/* signal unity step function */
+
+static t_class *ustep_tilde_class;
+
+typedef struct _ustep_tilde
+{
+ t_object x_obj;
+ t_sample x_mode;
+ t_sample x_thres;
+ float x_f;
+} t_ustep_tilde;
+
+static void *ustep_tilde_new(t_floatarg mode, t_floatarg thres)
+{
+ t_ustep_tilde *x = (t_ustep_tilde *)pd_new(ustep_tilde_class);
+ x->x_mode = mode;
+ x->x_thres = thres;
+ outlet_new(&x->x_obj, gensym("signal"));
+ floatinlet_new(&x->x_obj, &x->x_mode);
+ floatinlet_new(&x->x_obj, &x->x_thres);
+ x->x_f = 0;
+ if(mode) x->x_mode = mode;
+ else x->x_mode = 0;
+ if(x->x_mode > 1) x->x_mode = 1;
+ if(x->x_mode < 0) x->x_mode = 0;
+ if(thres) x->x_thres = thres;
+ else x->x_thres = 0.5;
+ return (x);
+}
+
+static t_int *ustep_tilde_perform(t_int *w)
+{
+ t_ustep_tilde *x = (t_ustep_tilde *)(w[1]);
+ t_float *in = (t_float *)(w[2]);
+ t_float *out = (t_float *)(w[3]);
+ int n = (int)(w[4]);
+ float f, value;
+ int mode = x->x_mode;
+ while (n--)
+ {
+ f = *in++;
+ switch(mode){
+ case(0):
+ if (f >= x->x_thres)
+ value = 1;
+ else
+ value = 0;
+ break;
+ case(1):
+ if (f >= x->x_thres)
+ value = 1;
+ else
+ value = f;
+ }
+ *out++ = value;
+ }
+ return (w+5);
+}
+
+static void ustep_tilde_dsp(t_ustep_tilde *x, t_signal **sp)
+{
+ dsp_add(ustep_tilde_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+void ustep_tilde_setup(void)
+{
+ ustep_tilde_class = class_new(gensym("sp.ustep~"), (t_newmethod)ustep_tilde_new, 0,
+ sizeof(t_ustep_tilde), 0, A_DEFFLOAT, A_DEFFLOAT, 0);
+ CLASS_MAINSIGNALIN(ustep_tilde_class, t_ustep_tilde, x_f);
+ class_addmethod(ustep_tilde_class, (t_method)ustep_tilde_dsp, gensym("dsp"), 0);
+}
diff --git a/source/vowel~.c b/source/vowel~.c
new file mode 100644
index 0000000..3500ffc
--- /dev/null
+++ b/source/vowel~.c
@@ -0,0 +1,118 @@
+/* sIgpAck
+ * for
+ * pure-data
+ * www.weiss-archiv.de */
+
+#include "m_pd.h"
+#ifdef _MSC_VER
+#pragma warning( disable : 4244 )
+#pragma warning( disable : 4305 )
+#endif
+
+/* ------------------------ sp.vowel~ ----------------------------- */
+/* simple formant filter */
+/* code from musicdsp.org posted by alex@smartelectronix.com */
+
+static t_class *vowel_tilde_class;
+
+typedef struct _vowel_tilde
+{
+ t_object x_obj;
+ t_sample x_vowelnum;
+ float x_f;
+} t_vowel_tilde;
+
+static void *vowel_tilde_new(t_floatarg vowelnum)
+{
+ t_vowel_tilde *x = (t_vowel_tilde *)pd_new(vowel_tilde_class);
+ x->x_vowelnum = vowelnum;
+ outlet_new(&x->x_obj, gensym("signal"));
+ floatinlet_new(&x->x_obj, &x->x_vowelnum);
+ x->x_f = 0;
+ if(vowelnum) x->x_vowelnum = vowelnum;
+ else x->x_vowelnum = 0;
+ return (x);
+}
+
+const double coeff[5][11]= {
+ { 8.11044e-06,
+ 8.943665402, -36.83889529, 92.01697887, -154.337906, 181.6233289,
+ -151.8651235, 89.09614114, -35.10298511, 8.388101016, -0.923313471 ///A
+ },
+ { 4.36215e-06,
+ 8.90438318, -36.55179099, 91.05750846, -152.422234, 179.1170248, ///E
+ -149.6496211,87.78352223, -34.60687431, 8.282228154, -0.914150747
+ },
+ { 3.33819e-06,
+ 8.893102966, -36.49532826, 90.96543286, -152.4545478, 179.4835618,
+ -150.315433, 88.43409371, -34.98612086, 8.407803364, -0.932568035 ///I
+ },
+ { 1.13572e-06,
+ 8.994734087, -37.2084849, 93.22900521, -156.6929844, 184.596544, ///O
+ -154.3755513, 90.49663749, -35.58964535, 8.478996281, -0.929252233
+ },
+ { 4.09431e-07,
+ 8.997322763, -37.20218544, 93.11385476, -156.2530937, 183.7080141, ///U
+ -153.2631681, 89.59539726, -35.12454591, 8.338655623, -0.910251753
+ }
+};
+
+static double memory[10] = {0,0,0,0,0,0,0,0,0,0};
+
+float formant_filter (float in, int vowelnum)
+{
+ float res;
+ res= (float) (coeff[vowelnum][0]*in +
+ coeff[vowelnum][1]*memory[0] +
+ coeff[vowelnum][2]*memory[1] +
+ coeff[vowelnum][3]*memory[2] +
+ coeff[vowelnum][4]*memory[3] +
+ coeff[vowelnum][5]*memory[4] +
+ coeff[vowelnum][6]*memory[5] +
+ coeff[vowelnum][7]*memory[6] +
+ coeff[vowelnum][8]*memory[7] +
+ coeff[vowelnum][9]*memory[8] +
+ coeff[vowelnum][10]*memory[9]);
+
+ memory[9]=memory[8];
+ memory[8]=memory[7];
+ memory[7]=memory[6];
+ memory[6]=memory[5];
+ memory[5]=memory[4];
+ memory[4]=memory[3];
+ memory[3]=memory[2];
+ memory[2]=memory[1];
+ memory[1]=memory[0];
+ memory[0]=(double)res;
+ return res;
+}
+
+static t_int *vowel_tilde_perform(t_int *w)
+{
+ t_vowel_tilde *x = (t_vowel_tilde *)(w[1]);
+ t_float *in = (t_float *)(w[2]);
+ t_float *out = (t_float *)(w[3]);
+ int n = (int)(w[4]);
+ float f, value;
+ while (n--)
+ {
+ f = *in++;
+ value = formant_filter(f, (int)x->x_vowelnum);
+ *out++ = value;
+ }
+ return (w+5);
+}
+
+static void vowel_tilde_dsp(t_vowel_tilde *x, t_signal **sp)
+{
+ dsp_add(vowel_tilde_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+void vowel_tilde_setup(void)
+{
+ vowel_tilde_class = class_new(gensym("sp.vowel~"), (t_newmethod)vowel_tilde_new, 0,
+ sizeof(t_vowel_tilde), 0, A_DEFFLOAT, 0);
+ CLASS_MAINSIGNALIN(vowel_tilde_class, t_vowel_tilde, x_f);
+ class_addmethod(vowel_tilde_class, (t_method)vowel_tilde_dsp, gensym("dsp"), 0);
+ class_addmethod(vowel_tilde_class, (t_method)formant_filter, gensym("formant_filter"), A_GIMME, A_NULL);
+}