User manual

107
1/12 Octave + Tolerance
Optimize the Frequency Response
The fast frequency response measurement with the test sig-
nal “Fast Pink Noise” saves time in optimizing the frequency
response of audio devices or speakers. During your settings
on the equalizer, you will receive a precise result on the XL2
screen within one second.
Select the test signal • Fastpnk1 on the Minirator MR-PRO.
Connect the MR-PRO to the input of the device under test.•
Take the XL2 and select the function • 1/12Oct.
Select the measurement parameter • EQ1”, the mode “Sin-
gle” and set the measurement duration to one second.
Adjust the settings on the equalizer. •
 The XL2 displays the actual frequency response within a
second.
Test Signal „Fast Pink Noise“ Advantage
Frequency response measurements often use
the standard Pink Noise in combination with
a 1/n octave analysis. Because of the random-
ness, longer averaging times are necessary to
get accurate results. Too short averaging times
result in “noise” in the result, as shown here:
In comparison, the test signal “Fast Pink Noise”
enables a precise measurement result within
one or four seconds.