diff --git a/EncodeAudio.pde b/EncodeAudio.pde
index c3fac7b..03e6400 100644
--- a/EncodeAudio.pde
+++ b/EncodeAudio.pde
@@ -12,8 +12,11 @@ void setup()
 {
   size(512, 200);
   
-  String file = selectInput("Select audio file to encode.");
-
+  selectInput("Select audio file to encode.", "callback");
+}
+void callback(File sfile){
+  String file = sfile.getAbsolutePath();
+  
   if (file == null) {
     exit();
     return;
@@ -25,7 +28,7 @@ void setup()
     minim = new Minim(this);
     sample = minim.loadSample(file);
     
-    float[] samples = sample.getChannel(BufferedAudio.LEFT);
+    float[] samples = sample.getChannel(1); //BufferedAudio.LEFT
     float maxval = 0;
   
     for (int i = 0; i < samples.length; i++) {
@@ -51,6 +54,7 @@ void setup()
   }
   
   exit();
+  
 }
 
 void stop()
diff --git a/readme.md b/readme.md
new file mode 100644
index 0000000..10d3d72
--- /dev/null
+++ b/readme.md
@@ -0,0 +1,8 @@
+# EncodeAudio
+
+*Processing sketch for translating audio files into numeric values. 
+<http://hlt.media.mit.edu/?p=1963>*
+
+originally by **[David A. Mellis](https://github.com/damellis)**
+
+updated for Processing 2 by **[electricmango](https://github.com/electricmango)**