S
skinnyfat
Guest
This article explains SPL in a way that even simple minded plonkers like myself can understand :077: :044: :044: :044:
http://www.eie.fceia.unr.edu.ar/~acustica/comite/soundlev.htm
http://www.eie.fceia.unr.edu.ar/~acustica/comite/soundlev.htm