Music compression not doing anything?

I’m just about to publish my app to the store but unfortunately, my .apk is 2mb to big, I looked at the editor and it said the sounds are taking up the majority of the space. One of my sound files was 9.8mb so I compressed it to 4.7mb using the slider in the inspector. I rebuilt my .apk but the editor is still saying the sound file is 9.8mb. am I doing something wrong?

Here is my editor log:

32853-capture.png

This is what my Inspector looks like for that .mp3

32854-capture2.png

This is because you have it set to Compressed In Memory. This should only be used if memory use is an issue. It will exist in memory in a compressed format, not on the disk.
If you select Stream From Disk or Decompress On Load your file size should be smaller.