SPL instead of dBs?

[Mats59]

Hey! On the latest Beta can anyone explain why the axis of the graphs is now pre-set as SPL instead of dbs and how do I get just dbs? Confused by what dbFS, dbr, dbu, dbV, dbW is? Thanks!

 

[John Mulcahy]

Decibels (dB) are the logarithm of a ratio, they can be used with many different units. Sound pressures are dB SPL. dBFS is dB relative to full scale, dBV is dB relative to 1 volt etc. Here is a somewhat lengthy video that explains them: