I've been producing on AT for awhile now and also attempted to master several tracks on AT before publishing them on streaming platforms, YT and ETC.. But i have noticed something different. I master my tracks so they are loud at 0db (at least that's what AT says it is), but when i hear other reference tracks that were produced in other DAWs, they always sound louder than my mastered track. Could it be that AT's 0db is softer? or is it just a ME problem
Peak level, which normally is the one that reaches 0 dB, isn't a good indicator of perceived loudness. RMS level is the one that does. Usually a loud track will have a RMS value around -12 to -9 dB on its loudest parts. In the Studio, make sure that RMS Mode is set on the level meter on the top bar.
I've never seen any recommendation above -7 dB. Usually between -12 and -8 dB for the loudest parts in energetic tracks. More is just flat and fatiguing, with no dynamics.
you are right. on audiotool, 0dB counts as clipping. it's pretty stupid imo.