Audacity reducing WAV file size when exported

Hi,

Sorry if this has already been discussed. I’m using Audacity to add metadata to some tracks. I import the (WAV) file, add my metadata, and then export it. However, the new exported file reduces the size by almost 20 MB. I want the exported file to be the same size as the original. Any idea what’s going on? I’m using OS X 10.11.

Thanks for the help!

From what size to what size? What percentage change?

Why?

  1. Do you use some other application that can read metadata in WAV files?
  2. Audacity is a poor choice of metadata editor because:
    a) it is slow (the audio file has to be read from disk and then rewritten back to disk
    b) unless you are using 32-bit float format, the exported file will probably not be a bit perfect copy of the original.