diff --git a/button2.mp3 b/button2.mp3
new file mode 100644
index 0000000..e97cc82
Binary files /dev/null and b/button2.mp3 differ
diff --git a/headeredit.cpp b/headeredit.cpp
new file mode 100644
index 0000000..5618a08
--- /dev/null
+++ b/headeredit.cpp
@@ -0,0 +1,40 @@
+#include <stdio.h>
+#include <vector>
+#include <complex>
+#include <cstring>
+#include <cstdlib>
+
+
+main()
+{
+  std::vector<unsigned char> data;
+  FILE* f = fopen("outputfileulaw.wav", "rb");
+  rewind(f);
+  while(!feof(f))
+  {
+    unsigned char s;
+    fread(&s, sizeof s, 1, f);
+    data.push_back(s);
+  }
+  FILE* o = fopen("outputfileulaw.raw", "wb");
+  int headersize = 4;
+  int old_header_size = 58;
+  unsigned int samples = data.size() - old_header_size;
+  unsigned char* new_data = (unsigned char*)malloc(sizeof(char) * (samples + headersize));
+  //little endian: alles umdrehen...
+  int samples_old = samples;
+  new_data[0] = (unsigned char) samples;
+  printf("value: %#x\n", (unsigned char)samples);
+  samples >>= 8;
+  new_data[1] = (unsigned char) samples;
+  printf("value: %#x\n", (unsigned char)samples);
+  samples >>= 8;
+  new_data[2] = (unsigned char) samples;
+  printf("value: %#x\n", (unsigned char)samples);
+  samples >>= 8;
+  new_data[3] = (unsigned char) samples;
+  printf("value: %#x\n", (unsigned char)samples);
+  //memcpy(&new_data[0], &samples, sizeof(int));
+  memcpy(&new_data[4], &data[old_header_size], samples_old);
+  fwrite(&new_data[0], sizeof(unsigned char), samples_old+headersize, o);
+}
\ No newline at end of file
diff --git a/outputfileulaw.raw b/outputfileulaw.raw
new file mode 100644
index 0000000..78b98aa
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diff --git a/outputfileulaw.wav b/outputfileulaw.wav
new file mode 100644
index 0000000..f194d5d
Binary files /dev/null and b/outputfileulaw.wav differ