#!/bin/sh
#
# m4a to wav to mp3

for i in *.m4a; do
     faad "$i"
     x=`echo "$i"|sed -e 's/.m4a/.wav/'`
     y=`echo "$i"|sed -e 's/.m4a/.mp3/'`
     lame -h -b 192 "$x" "$y"
     # Comment the line below if you want to keep the .wav files
     rm "$x"
done

#!/bin/sh
#
# m4a to wav

for i in *.m4a; do
     faad "$i"
done

#!/bin/sh
#
# mp3 to wav
#
# This script will encode ALL .mp3's in the working
# directory to .wav format. No need to pass any arguments.
# Especially usefull for preparing a group of files
# to be burned to an audio CD.

for i in *.mp3; do
     echo "$i"
     tgt=$(echo "$i" | sed -e "s/mp3/wav/")
     mpg123 -b 10000 -s -r 44100 "$i" | sox -t raw -r 44100 -s -w -c2 - "$tgt"
done

#!/bin/bash
#

#############################################################
# Move the conversion process into a function that can
# be called.
# The "&&" makes it so each step must be successful before
# the next step will be done.
#############################################################
function wma2mp3 () {
  if [ ! -f "$1" ]; then
     echo "File $1 not found!"
  else
     mplayer -ao pcm -aofile "${1%%.[Ww][Mm][Aa]}.wav" "$1" &&
     lame -h -b 192 "${1%%.[Ww][Mm][Aa]}.wav" "${1%%.[Ww][Mm][Aa]}.mp3" &&
     rm -f "${1%%.[Ww][Mm][Aa]}.wav" ||
     echo "There was a problem with the conversion process!"
  fi
}

#############################################################
# Not enough information to compute
#############################################################
if [ $# -lt 1 ]; then
   echo
   echo "Usage:  wma2mp3 myfile.wma"
   echo "	wma2mp3 myfile.wma myfile2.wma myfile3.wma"
   echo '	wma2mp3 "my file with spaces in the name.wma"'
   echo '        wma2mp3 "file with spaces 1.wma" "file with spaces 2.wma"'
   echo '	wma2mp3 "*.wma"'
   echo "	wma2mp3 /directory/containing/wma/files"
   echo
   exit
fi

#############################################################
# Directory was passed so convert all wma files in directory
#############################################################
if [ $# -eq 1 -a -d "$1" ]; then
  for file in $1/*.[Ww][Mm][Aa]
  do
    wma2mp3 "$file"
  done
  exit
fi

#############################################################
# One or more wma files were passed, convert them
#############################################################
for file in $*
do
  wma2mp3 "$file"
done

exit