In FL Studio, I exported a project on these settings:
Mode: Full song Tail: Leave Remainder Type: WAV WAV bit depth: 32Bit float Resampling: 512-point sinc HQ for all plugins: ON Disable Maximum polyphony: ON Alias-free TS404: ON Save slice markers: OFF Split mixer tracks: ON Save ACIDized: ON Trim PDC delay: ON
After exporting the 1st time, I opened up the mixer WAV files a new FL Studio project to cut out some flaws in the export. (Just using the slice tool, no edits to the actual wave forms were made)
I exported again using the same exact settings as before -without splitting the mixer tracks. This time, the export sounded noticeably more saturated than listening to the song through the DAW.
I did a small comparison. I pulled up the 1st export and the 2nd export into an FL Studio project to compare waveforms, and sure enough, the 2nd export was slightly larger and more... saturated. It seems that exporting the files multiple times destroyed the quality.
So I decided to do a little test. I exported a WAV file on these settings (without splitting mixer tracks). I re-exported it 6 times. Every time I exported the WAV file, the quality got worse.
I have roamed the internet in hope of finding a fix, but I can't find anything other than the settings I am using. I even read FL Studio's documentation on exporting and... nothing. I have also tried using different interpolations (like 24-point as in the F10 Audio settings of FL Studio).
How do I fix this quality issue with the 2nd export?