Illusory Follies

Well, the problem was that as part of the 1.0 release of the iPhone firmware, WAV files could only be played if they were in the proper format. The issues that I had was that Broadvoice would send a nicely compressed WAV file to me whenever someone left a voicemail. This is convenient and worked great in Gmail. However, on the iPhone, I wanted to be able to play the voicemail while on the go. This script (and the helpful open-source utilities it uses) was the solution. I know I stole most of this from elsewhere on the Internet but in this case I forgot to document.

#!/bin/bash
 
if ! TEMPDIR="`mktemp /tmp/sendwav.XXXXXX`"; then
echo "$0 is unable to create the temporary file."
exit 1
fi
 
# not perfect, but, we'll live
rm $TEMPDIR
mkdir $TEMPDIR
 
mkdir -p $TEMPDIR/source
 
touch $TEMPDIR/pre
 
#absorbs stdin
munpack -C $TEMPDIR/source
 
touch $TEMPDIR/post
 
#convert to GSM
sox $TEMPDIR/source/*.[Ww][Aa][Vv] -r 8000 -c 1 -u $TEMPDIR/voicemail.wav
 
cat $TEMPDIR/source/voice-message.desc | mutt -a $TEMPDIR/voicemail.wav -s "New Voicemail" andrew.flanagan+iphone@gmail.com
 
rm -fr $TEMPDIR