Very good, but it would be better if you can increase and change the volume of the song file. Or automatically unify the mp3 output volume, that's perfect.
The app has this capability. The volume set in the preamp will save to the new file. The app gives you full control of the volume. You can adjust the volume with the preamp, either in the equalizer or add it to the main editor window under custom in editor components. Setting the preamp to zero or turning it off leaves the original volume unaltered:
Comments
The reason the volume is lowered by default is to avoid clipping. Here is more info on the preamp: https://musicspeedchanger.com/forum/discussion/238/turning-up-the-volume-using-the-preamp