Axon Synapse DEE28, Installation And Operation Manual, Page: 23 / 49

23

MOM
(momentary loudness): This parameter provides the loudness
measurement for the last 400 milliseconds, and does not use any
gating for the measurement.

INT
(integrated loudness): This parameter provides a single,
simplified measurement value for the loudness over the entire
program. It automatically sets the value to be either the ungated,
speech-gated, or level-gated result based on the loudness estimation
mode, configured speech threshold, and amount of speech detected. It
follows these guidelines:

If the loudness estimation mode is set to 0 (ITU-R BS.1770-2
plus Dialogue Intelligence), 1 (ITU-R BS.1770-1 plus Dialogue
Intelligence), or 3 (Leq(A) plus Dialogue Intelligence), and the
percentage of speech detected exceeds the configured speech
threshold (defaulted to 20%), the value displays the speech-gated
result.

If the loudness estimation mode is set to 2 (ITU-R BS.1770-2) ,
the value displays the level-gated result.

Otherwise, the value displays the ungated result.
 S10s
(ten second loudness): This parameter provides a single,
simplified measurement value for the loudness over the last ten
seconds.. It automatically sets the value to be either the ungated or
speech-gated result based on the following rules:

The value is set to –120dB until dialogue is detected.

If ten seconds elapse from the beginning of the program without
any dialogue detected, the value is set to the ungated ten-second
loudness.

Once dialogue is detected:

The value is set to the ten-second speech-gated loudness
result.

When the Dialogue Intelligence algorithm detects that
speech has ceased, this value holds the last active speech-
gated result until speech becomes active again or the
program is reset.
The loudness packed structure provides program loudness information
for the last 0.5 seconds and is updated twice each second. The values in
this output are dependent on the loudness metering mode as defined by
the Loudness_type control parameter. The following table lists valid
parameters by mode.
Parameter 1770-2
+Dial
1770-2
+Dial
1770-2 Leq(A)
Integrated ungated loudness X X
Integrated speech
‐
gated loudness X X X
Integrated level
‐
gated loudness X X
10s ungated loudness X X X
10s speech
‐
gated loudness X X X
3s ungated loudness X X
Momentary loudness X X
Integrated loudness
X X X X