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linuxbashconsolelame

increasing the volume of several mp3 files via lame

it's already known that

lame --scale N song.mp3 loud_song.mp3

where N is the scale number.

well, I want to apply in every mp3 file in a folder, and preserve the name of files.

Solution 
  • tmpfile=~/.deleteme.mp3
MyExit() { rm -f "$tmpfile"; }
trap MyExit EXIT

for f in *.mp3
do
    lame --scale 2 "$f" "$tmpfile" && mv "$tmpfile" "$f"
done