Join many MP3, OGG, and FLAC files into one WAV or FLAC

Question

I have 33 audio files, each about 11 seconds long, and I'd like to merge them into one lossless file. How can I do this efficiently (i.e. without cut-pasting in Audacity 33 times)?

Answer 1

You can do this with ffmpeg and sox:

for i in *.mp3 *.ogg *.flac
do
  ffmpeg -i "$i" "$i.wav"
done

sox *.wav combined.wav