I recently used Audacity to reduce some noise in an audio recording.
• The source file was an 51 MB .mp3 (60-min @128kb)
• I ran a single noise reduction pass over the audio and exported it back out
• The export .mp3 file was 51 MB (just like before)
• I had to try 2-3 the different noise reduction settings (various dBs, etc) so I thought I would save the Audacity .aup3 file in case I needed to tweak the noise reduction
• I could not believe or understand it I saw that the .aup3 save was 1480 MB (1.48GB)
I read a few posts and it seems like this is not super uncommon but I had to ask about it…
• Why on earth is the .aup3 file so massive, and so much bigger than the source?
• Surely at most it just needs to be: copy of source file (51MB) + record of transformations applied (1KB)?
• Did I do something wrong / is there some way to compress the .aup3 file?
… Hopefully I can figure this out, as otherwise it literally isn’t worth me ever saving an .aup3 file, as I can’t afford to be taking up GB after GB, just to save the edits to a few 50-60MB files.