EBS
NOS
RAI
ORTF
DIN
AB
AB30
AB60
AB120
XY
XY120
Blumlein
Tony Faulkner′s
m
°
=
±
°
°
=
±
°
°
=
±
°
»
ΔL:
dB
»
%
»
Δt:
ms
»
%
ΔL+Δt:
%
http://www.sengpielaudio.com/Fragen08.htm