Bulk convert Apple Loops to m4a without re-sampling.

gistfile1.sh

#!/bin/sh

IFS=$'\n'
APPLE_LOOPS='/Library/Audio/Apple Loops'

cd `dirname $0`
echo "" > convert.log
for file in $(find $APPLE_LOOPS -print -type f -name *.caf)
do
    newfile=`echo $file | sed "s|^$APPLE_LOOPS/||"`
    newdir=`dirname "${newfile}"`
    outfile=`basename "${newfile}" .caf`
    mkdir -p "${newdir}"
##  afinfo --warnings "${file}"
    afconvert -v -f m4af -d 0 "${file}" "${newdir}/${outfile}.m4a" 2>&1 | tee -a convert.log
done