diff --git a/lib/wellen.jar b/lib/wellen.jar
index 3fd9e9b..cf13717 100644
Binary files a/lib/wellen.jar and b/lib/wellen.jar differ
diff --git a/processing-library/wellen/examples/DSP/ExampleDSP07Sampler/ExampleDSP07Sampler.pde b/processing-library/wellen/examples/DSP/ExampleDSP07Sampler/ExampleDSP07Sampler.pde
index bb7fa7c..6f5792a 100644
--- a/processing-library/wellen/examples/DSP/ExampleDSP07Sampler/ExampleDSP07Sampler.pde
+++ b/processing-library/wellen/examples/DSP/ExampleDSP07Sampler/ExampleDSP07Sampler.pde
@@ -11,6 +11,15 @@ import wellen.dsp.*;
  *
  * note that samples can either be played once or looped. if a sample is played once it must be rewound before it
  * can be played again. also note that a sample buffer can be cropped with `set_in()` + `set_out()`.
+ *
+ * samples can be loaded from external sources as *raw* bytes with `loadBytes(byte[])`. the raw format needs to be in
+ * the 32bit IEEE float format and only contain a single channel ( i.e mono ). tools like
+ * [Audacity](https://www.audacityteam.org) or [FFmpeg](https://ffmpeg.org) can be used to generate it. e.g the latter
+ * can be used to convert sound file to *raw* bytes with the following command where `INPUT_FILE`, `OUTPUT_FILE` and
+ * `$OUTPUT_SAMPLE_RATE` need to be adjusted:
+ *
+ * `ffmpeg -i $INPUT_FILE -f f32le -acodec pcm_f32le -ac 1 -ar $OUTPUT_SAMPLE_RATE "$OUTPUT_FILE.raw"`
+ *
  */
 Sampler fSampler;
 void settings() {
diff --git a/processing-library/wellen/examples/technique/TechniqueBasics09ModTracker/TechniqueBasics09ModTracker.pde b/processing-library/wellen/examples/technique/TechniqueBasics09ModTracker/TechniqueBasics09ModTracker.pde
index 4ad247b..c1118e8 100644
--- a/processing-library/wellen/examples/technique/TechniqueBasics09ModTracker/TechniqueBasics09ModTracker.pde
+++ b/processing-library/wellen/examples/technique/TechniqueBasics09ModTracker/TechniqueBasics09ModTracker.pde
@@ -41,8 +41,8 @@ void addMasterEffects() {
     if (mToneEngine == null) {
         return;
     }
-    RRStompBox mDistortion = new RRStompBox();
-    mDistortion.setpreset(RRStompBox.PRESET_ODIE);
+    wellen.extra.rakarrack.RRStompBox mDistortion = new wellen.extra.rakarrack.RRStompBox();
+    mDistortion.setpreset(wellen.extra.rakarrack.RRStompBox.PRESET_ODIE);
     mToneEngine.add_effect(mDistortion);
     Reverb mReverb = new Reverb();
     mToneEngine.add_effect(mReverb);
diff --git a/processing-library/wellen/library/wellen.jar b/processing-library/wellen/library/wellen.jar
index 3fd9e9b..cf13717 100644
Binary files a/processing-library/wellen/library/wellen.jar and b/processing-library/wellen/library/wellen.jar differ
diff --git a/processing-library/wellen/resources/teilchen.raw b/processing-library/wellen/resources/teilchen.raw
index b0aabcc..4ccb022 100644
Binary files a/processing-library/wellen/resources/teilchen.raw and b/processing-library/wellen/resources/teilchen.raw differ
diff --git a/processing-library/wellen/src/wellen/examples/DSP/ExampleDSP07Sampler.java b/processing-library/wellen/src/wellen/examples/DSP/ExampleDSP07Sampler.java
index 9a3deb1..be7ed06 100644
--- a/processing-library/wellen/src/wellen/examples/DSP/ExampleDSP07Sampler.java
+++ b/processing-library/wellen/src/wellen/examples/DSP/ExampleDSP07Sampler.java
@@ -19,12 +19,13 @@ public class ExampleDSP07Sampler extends PApplet {
      * can be played again. also note that a sample buffer can be cropped with `set_in()` + `set_out()`.
      *
      * samples can be loaded from external sources as *raw* bytes with `loadBytes(byte[])`. the raw format needs to be in
-     * the 32bit IEEE float format and only contain a single channel ( i.e mono ). tools like 
+     * the 32bit IEEE float format and only contain a single channel ( i.e mono ). tools like
      * [Audacity](https://www.audacityteam.org) or [FFmpeg](https://ffmpeg.org) can be used to generate it. e.g the latter
      * can be used to convert sound file to *raw* bytes with the following command where `INPUT_FILE`, `OUTPUT_FILE` and
-     * `OUTPUT_SAMPLLE_RATE` need to be adjusted:
-     * 
-     * `ffmpeg -i $INPUT_FILE -f f32le -acodec pcm_f32le -ac 1 -ar $OUTPUT_SAMPLLE_RATE "$OUTPUT_FILE.raw"`
+     * `$OUTPUT_SAMPLE_RATE` need to be adjusted:
+     *
+     * `ffmpeg -i $INPUT_FILE -f f32le -acodec pcm_f32le -ac 1 -ar $OUTPUT_SAMPLE_RATE "$OUTPUT_FILE.raw"`
+     *
      */
 
     private Sampler fSampler;
diff --git a/processing-library/wellen/src/wellen/examples/technique/TechniqueBasics09ModTracker.java b/processing-library/wellen/src/wellen/examples/technique/TechniqueBasics09ModTracker.java
index 69ee5e3..b017fb7 100644
--- a/processing-library/wellen/src/wellen/examples/technique/TechniqueBasics09ModTracker.java
+++ b/processing-library/wellen/src/wellen/examples/technique/TechniqueBasics09ModTracker.java
@@ -7,7 +7,6 @@
 import wellen.ToneEngineDSP;
 import wellen.dsp.Gain;
 import wellen.dsp.Reverb;
-import wellen.extra.rakarrack.RRStompBox;
 
 public class TechniqueBasics09ModTracker extends PApplet {
 
@@ -62,8 +61,8 @@ private void addMasterEffects() {
             return;
         }
 
-        RRStompBox mDistortion = new RRStompBox();
-        mDistortion.setpreset(RRStompBox.PRESET_ODIE);
+        wellen.extra.rakarrack.RRStompBox mDistortion = new wellen.extra.rakarrack.RRStompBox();
+        mDistortion.setpreset(wellen.extra.rakarrack.RRStompBox.PRESET_ODIE);
         mToneEngine.add_effect(mDistortion);
 
         Reverb mReverb = new Reverb();
diff --git a/src/wellen/examples/DSP/ExampleDSP07Sampler.java b/src/wellen/examples/DSP/ExampleDSP07Sampler.java
index f24ef35..be7ed06 100644
--- a/src/wellen/examples/DSP/ExampleDSP07Sampler.java
+++ b/src/wellen/examples/DSP/ExampleDSP07Sampler.java
@@ -17,6 +17,15 @@ public class ExampleDSP07Sampler extends PApplet {
      *
      * note that samples can either be played once or looped. if a sample is played once it must be rewound before it
      * can be played again. also note that a sample buffer can be cropped with `set_in()` + `set_out()`.
+     *
+     * samples can be loaded from external sources as *raw* bytes with `loadBytes(byte[])`. the raw format needs to be in
+     * the 32bit IEEE float format and only contain a single channel ( i.e mono ). tools like
+     * [Audacity](https://www.audacityteam.org) or [FFmpeg](https://ffmpeg.org) can be used to generate it. e.g the latter
+     * can be used to convert sound file to *raw* bytes with the following command where `INPUT_FILE`, `OUTPUT_FILE` and
+     * `$OUTPUT_SAMPLE_RATE` need to be adjusted:
+     *
+     * `ffmpeg -i $INPUT_FILE -f f32le -acodec pcm_f32le -ac 1 -ar $OUTPUT_SAMPLE_RATE "$OUTPUT_FILE.raw"`
+     *
      */
 
     private Sampler fSampler;
diff --git a/src/wellen/examples/technique/TechniqueBasics09ModTracker.java b/src/wellen/examples/technique/TechniqueBasics09ModTracker.java
index 69ee5e3..b017fb7 100644
--- a/src/wellen/examples/technique/TechniqueBasics09ModTracker.java
+++ b/src/wellen/examples/technique/TechniqueBasics09ModTracker.java
@@ -7,7 +7,6 @@
 import wellen.ToneEngineDSP;
 import wellen.dsp.Gain;
 import wellen.dsp.Reverb;
-import wellen.extra.rakarrack.RRStompBox;
 
 public class TechniqueBasics09ModTracker extends PApplet {
 
@@ -62,8 +61,8 @@ private void addMasterEffects() {
             return;
         }
 
-        RRStompBox mDistortion = new RRStompBox();
-        mDistortion.setpreset(RRStompBox.PRESET_ODIE);
+        wellen.extra.rakarrack.RRStompBox mDistortion = new wellen.extra.rakarrack.RRStompBox();
+        mDistortion.setpreset(wellen.extra.rakarrack.RRStompBox.PRESET_ODIE);
         mToneEngine.add_effect(mDistortion);
 
         Reverb mReverb = new Reverb();
diff --git a/wellen.zip b/wellen.zip
index 57d06b8..07d2bfa 100644
Binary files a/wellen.zip and b/wellen.zip differ