function process () {
  echo "____________________________________________________"
  echo "process $1"
  name=$1
  in="${name}.wav"
  out="s_${in}"
  ./spread.sh $in $out 0.99 0.01 1.01
  ./split44k.sh $out 8 "44k_$name"
  rm $out
}
function ease_process () {
  echo "____________________________________________________"
  echo "ease_process $1"
  name=$1
  step=$2
  in="${name}.wav"
  sout="o_${in}"
  out="s_${in}"
  sox -v 0.95 $in $sout
  ./spread.sh $sout $out 0.999 $step 1.001
  ./split44k.sh $out 8 "44k_$name"
  rm $sout
  rm $out
}
#ease_process '' 0.0000
ease_process 'blblbl' 0.00001515
ease_process 'faty-scrub1' 0.0000285
ease_process 'faty-medieval' 0.00003
ease_process 'faty-crystals' 0.0000111
ease_process 'faty-vocal1' 0.000013
ease_process 'faty-vocal2' 0.000028145
ease_process 'faty-scrub2' 0.00000466
ease_process 'siren' 0.0000275