Add script to convert wav file to ulaw.

wav2ul.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+#
+# Script to convert a single wav file to ulaw using sox.
+#
+
+filename="${1%.*}"
+echo converting: $filename.wav to $filename.ulaw
+sox $filename.wav -t ul $filename.ulaw