Q Factor
The Q factor control is available when the bell filter is applied to bands 2, 3, 4 and 5. This sets
the range of frequencies the filter will affect. For example, setting the minimum will allow the
filter to affect a wide range of surrounding frequencies and the maximum setting will narrow
the effect down to a tiny point. This is important if you have sound qualities in surrounding
frequencies that you want to either include or exclude from the change you are making.
As you adjust the Q factor, watch the shape of the effect on the line curve change from a broad,
rounded edge to a sharp point. This is a visual representation showing how the regions of
frequencies surrounding the target frequency are affected.
TIP
Compare the audio with changes against the original unaltered audio by clicking
on the bypass button at the very top of the equalizer window. This lets you turn the
equalizer on or off.
Band Filters
There are six different types of band filters you can choose from. These filters include bell,
high shelf, low shelf, notch, high pass, and low pass. These filters let you control specific
zones within the frequency range. For example, a low shelf filter lets you increase or decrease
the level of volume for lower frequencies on the graph, and a high shelf filter controls the
higher frequencies.
Try setting a low shelf filter to band 3 and make changes to the gain setting. You will see the
changes are weighted towards the low end frequencies on the graph.
A description for each filter type is provided below.
Bell
This filter is used to increase
or decrease a range of
frequencies surrounding
a defined frequency.
Notch
This filter lets you remove,
or cut, a defined frequency.
TIP
It's not uncommon to have filters on each band overlapping on the graph curve
with adjustments working together. For example, you may have a low shelf filter
applied to band 4, and a notch filter on band 5 reducing a frequency within the
same range.
High Shelf
Lets you increase or decrease
the level of volume for higher
frequencies along the graph.
High Pass
Smoothly removes extreme
low end frequencies, allowing
the high end frequencies to
pass unaffected.
Low Shelf
Lets you increase or decrease
the level of volume for lower
frequencies along the graph.
Low Pass
Smoothly removes extreme
high end frequencies, allowing
the low end frequencies to
pass unaffected.
Using ATEM Software Control
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