It
i s
p erfectly
a cceptable
t o
h ave
l oudness
l evels
v ary
o ver
t he
course
o f
a
p rogram,
m aintaining
i ntended
" creative"
d ynamics
that
t he
p roducer
i ncluded
i nto
t he
a udio
m ix.
I n
f act,
t he
resulting
a udio
w ill
s ound
f ar
m ore
n atural
t han
i f
t he
l oudness
measurement
w as
t o
r emain
p erfectly
c onstant.
The
i nformation
t hat
i s
r ecorded
i n
t he
L oudness
M easurement
L og
i s
a s
f ollows:
Every
e ntry:
• Timestamp
( real
t ime)
• 3
s econd
i ntegration
t ime
m easurement
• 10
s econd
i ntegration
t ime
m easurement
• 30
s econd
i ntegration
t ime
m easurement
• TruePeak
m easurement
• Loudness
t arget
v alue
• Audio
c hannel
c onfiguration
( acmod)
Summary
I nformation:
• ITU
B S.1770
I ntegrated
U ngated
• ITU
B S.1770-‐‑ 2
I ntegrated
G ated
• EBU
R 128
I ntegrated
U ngated
• EBU
R 128
I ntegrated
G ated
• Maximum
T rue
P eak
M easurement
• EBU
R 128
L oudness
R ange,
i ncluding
L ow,
M edian,
H igh,
a nd
R ange
v alues
To
g et
t o
t he
l oudness
l og,
c lick
o n
t he
"
your
c hoosing.
T he
f ollowing
w indow
w ill
a ppear:
Instance
1 :
L oudness
M eter
P rogram
52
"
o f