Settings
Manual SoundCam 15
4.1.3
Frequency filter
Lower selectivity when low frequencies are set.
The condition for the development of low-frequency noise components is a larger radiating
area. The resulting large colour area can cover several high-frequency noise sources that
could possibly be located more precisely.
The lower slider is highlighted in red at a setting below 1 kHz to make this clear.
In new measurements you can adjust the frequency filter step by step to achieve a
satisfactory selectivity.
The button at the top left (see Figure 12 - Figure 14) switches between different methods for
entering the minimum and maximum filter frequency:
Manual:
Adjusting the filter frequencies with the slider.
If you hold the frequency slider (see Figure 12) to the left of the centre, you
can adjust the upper and lower cut-off frequencies separately.
If you touch the slider to the right of the centre, you can change the upper
and lower cut-off frequencies together and at the same time while
maintaining the relative distance between the minimum and maximum filter
frequencies.
Alternatively, the desired frequencies can also be entered directly into the
fields above the slider.
Octave filter:
The minimum and maximum filter frequency can be set by selecting one or
more frequency bands directly following each other (see Figure 13 and
Figure 14).
Third octave filter
1/3 octave filter:
Changes to the setting are not possible in the analysis after the measurement has been completed.
Figure 12: Manual
frequency selection
Figure 13: Frequency selection
(octaves)
Figure 14: Frequency
selection (third-octaves)
Summary of Contents for SoundCam Series
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