# Audacity 1.1.0 Phonograph Patch
#
# By Doug Hoyte
#
# This patch adds an effect "Phonograph", which creates pops and crackles
# that sound somewhat like a 33 1/3 LP in the selected audio
#
# Apply like so:
#
# cd audacity-1.1.0/
# patch -p1 < /tmp/audacity-src-1.1.0-phonograph.patch
#
# Replace /tmp/ with wherever you put the patch, obviously.
# configure, make, and enjoy.
#
#
#
diff -urNB audacity-src-1.1.0/src/Makefile.in audacity-src-1.1.0-phonograph/src/Makefile.in
--- audacity-src-1.1.0/src/Makefile.in	Wed Jun  5 00:45:54 2002
+++ audacity-src-1.1.0-phonograph/src/Makefile.in	Fri Aug  9 16:32:29 2002
@@ -76,6 +76,7 @@
 	$(OBJDIR)/effects/Invert.o \
 	$(OBJDIR)/effects/NoiseRemoval.o \
 	$(OBJDIR)/effects/Phaser.o \
+	$(OBJDIR)/effects/Phonograph.o \
 	$(OBJDIR)/effects/Reverse.o \
 	$(OBJDIR)/effects/Wahwah.o \
 	$(OBJDIR)/export/Export.o \
diff -urNB audacity-src-1.1.0/src/effects/LoadEffects.cpp audacity-src-1.1.0-phonograph/src/effects/LoadEffects.cpp
--- audacity-src-1.1.0/src/effects/LoadEffects.cpp	Wed Jun  5 00:45:54 2002
+++ audacity-src-1.1.0-phonograph/src/effects/LoadEffects.cpp	Fri Aug  9 16:33:33 2002
@@ -21,6 +21,7 @@
 #include "Invert.h"
 #include "NoiseRemoval.h"
 #include "Phaser.h"
+#include "Phonograph.h"
 #include "Reverse.h"
 #include "Wahwah.h"
 
@@ -52,6 +53,7 @@
    Effect::RegisterEffect(new EffectInvert(), false);
    Effect::RegisterEffect(new EffectNoiseRemoval(), false);
    Effect::RegisterEffect(new EffectPhaser(), false);
+   Effect::RegisterEffect(new EffectPhonograph(), false);
    Effect::RegisterEffect(new EffectReverse(), false);
    Effect::RegisterEffect(new EffectWahwah(), false);
 
diff -urNB audacity-src-1.1.0/src/effects/Phonograph.cpp audacity-src-1.1.0-phonograph/src/effects/Phonograph.cpp
--- audacity-src-1.1.0/src/effects/Phonograph.cpp	Wed Dec 31 16:00:00 1969
+++ audacity-src-1.1.0-phonograph/src/effects/Phonograph.cpp	Fri Aug  9 16:31:04 2002
@@ -0,0 +1,89 @@
+/**********************************************************************
+
+  Audacity: A Digital Audio Editor
+
+  Phonograph.cpp
+
+  Doug Hoyte
+  
+  This class gives the selection the good ol' fashion vibe of a
+  33 1/3 LP.
+
+**********************************************************************/
+
+#include <stdlib.h>
+
+
+#include "Phonograph.h"
+#include "../WaveTrack.h"
+
+//
+// EffectPhonograph
+//
+
+EffectPhonograph::EffectPhonograph()
+{
+}
+
+bool EffectPhonograph::Process()
+{
+   TrackListIterator iter(mWaveTracks);
+   VTrack *t = iter.First();
+   int count = 0;
+   while(t) {
+      sampleCount start, len;
+      GetSamples((WaveTrack *)t, &start, &len);
+      bool success = ProcessOne(count, (WaveTrack *)t, start, len);
+      
+      if (!success)
+         return false;
+   
+      t = iter.Next();
+      count++;
+   }
+   
+   return true;
+}
+
+bool EffectPhonograph::ProcessOne(int count, WaveTrack *t,
+                               sampleCount start, sampleCount len)
+{
+   sampleCount base = start;
+   float *buf = new float[len];
+
+   int j,next,tpwidth=0;
+   float tpheight,tpoff;
+
+   
+   srand(time(NULL));
+
+   t->Get(buf, base, len);
+
+   next = 5500+(int) (7500.0*rand()/(RAND_MAX+1.0));
+   for (int i = 0; i < len; i++) {
+
+     next--;
+     if(next <= 0) {
+       next = 5500+(int) (7500.0*rand()/(RAND_MAX+1.0));
+       tpheight = (0.2*rand()/(RAND_MAX+1.0));
+       tpwidth = 7+(int) (50.0*rand()/(RAND_MAX+1.0));
+
+       if (next%2 == 0) tpheight *= -1;
+
+       for (j = 0; j < tpwidth; j++) {
+         tpoff = (0.1*rand()/(RAND_MAX+1.0));
+         tpoff *= tpheight;
+         if (i+j < len) buf[i+j] += tpheight + tpoff;
+       }
+
+     }
+
+ 
+   }
+
+   t->Set(buf, base, len);
+
+   delete[] buf;
+
+   return true;
+}
diff -urNB audacity-src-1.1.0/src/effects/Phonograph.h audacity-src-1.1.0-phonograph/src/effects/Phonograph.h
--- audacity-src-1.1.0/src/effects/Phonograph.h	Wed Dec 31 16:00:00 1969
+++ audacity-src-1.1.0-phonograph/src/effects/Phonograph.h	Fri Aug  9 16:31:04 2002
@@ -0,0 +1,55 @@
+/**********************************************************************
+
+  Audacity: A Digital Audio Editor
+
+  Phonograph.h
+
+  Doug Hoyte
+  
+  This class gives the selection the good ol' fashion vibe of a
+  33 1/3 LP.
+
+**********************************************************************/
+
+#ifndef __AUDACITY_EFFECT_PHONOGRAPH__
+#define __AUDACITY_EFFECT_PHONOGRAPH__
+
+#include <wx/checkbox.h>
+#include <wx/button.h>
+#include <wx/dialog.h>
+#include <wx/stattext.h>
+#include <wx/slider.h>
+#include <wx/textctrl.h>
+#include <wx/sizer.h>
+#include <wx/intl.h>
+
+#include "Effect.h"
+
+#define __UNINITIALIZED__ (-1)
+
+class WaveTrack;
+
+class EffectPhonograph:public Effect {
+
+ public:
+   EffectPhonograph();
+
+   virtual wxString GetEffectName() {
+      return wxString(_("Phonograph"));
+   }
+   
+   virtual wxString GetEffectAction() {
+      return wxString(_("\"Phonographing\""));
+   }
+
+   virtual bool Process();
+
+ private:
+   bool ProcessOne(int count, WaveTrack * t,
+                   sampleCount start, sampleCount len);
+
+ private:
+
+};
+
+#endif