12.5.2.
2:
Overlap
Overlap sets the averaging overlap in a number
of
samples
from
1
to
2047. It can only
be used with a free running
trigger.
The default value is 0%, 50%, 75%
or
Maximum as
selected in the Averaging Overlap field
of
the MEASUREMENT SETUP.
12.5.3.
3:
No
Overload Reject
In
normal operation, the 2032 automatically rejects data influenced by an input
over-
load
from
an
ongoing average. When No Overload Reject is set
to
1,
the
reject
is
overidden and averaging is
performed
irrespective
of
input overload.
12.5.4.
5:
Special Spacer mm
Special Spacer mm is used
to
define the size in mm
of
the special
microphone
spacer
which can be
selected in the Universal Parameter Sound Intensity Calibration fields,
see Section 12.3.1.
12.5.5.
6:
Noise Bandwidth Ch.A INT,
7:
Noise Bandwidth Ch.A
IOE
If Special Parameter 6 is
not
equal
to
zero, then the normalised equivalent noise band-
width
of
the weighting function in Channel A is:
[
Special Parameter 6 ] . 1 o[ Special Parameter 7]
These parameters are used
to
define the noise bandwidth
of
the user-defined weight-
ing function,
or
to
re-define the noise bandwidth
of
the
other
weighting functions
from
their default values. These default values are:
Rectangular Weighting -
~
f
Hanning Weighting - 1 ,5
~
f
Flat Top Weighting - 3,8
~
f
Kaiser
Bessel Weighting - 1
,8
~
f
12.5.6.
8:
Noise Bandwidth Ch. B INT,
9:
Noisewidth Ch.B
IOE
As Special Parameters 6 and
7,
but
for
the weighting function in Channel
B.
See Sec-
tion 12.5.5.
135
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