After 12 years using Renoise, I never notice this until today. This is a question about Renoise audio level and I’m sure it should have a good explanation and maybe this has been a topic in the past, so I ask the expert users.
Face this. You have a WAV file and load it as a single sample instrument. Then you place a C4 note into a track in order to playback that sample in the correct pitch. After that, you render the song. Just using default settings, so no FX chains and every mixer slider is set to 0 db. So when you compare the original WAV file to the rendered file, you can notice a low volume level (more than 3 db less). It is supposed that you do not apply any changes to the original sound, so the rendered track should have the same volumen as the original one. But the mixing process reduces the signal level a lot, even if you have only one track in your song. Why?
P.D.: Still using Renoise 2.8.