Add wav-to-mp3.sh

convert-to-mp3.py

@@ -6,7 +6,7 @@ import getopt
 from subprocess import *
 
 def main(argv):
-    bitrate = 128
+    bitrate = 256
     try:
         opts, args = getopt.getopt(argv[1:], "b:")
     except getopt.GetoptError: