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Let’s take a look at the filter
CHOP.
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The filter CHOP can smooth, or
sharpen, the incoming chop data.
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This sample network merges
unfiltered and filtered CHOP
data, so you can easily
visualize a side-by-side
comparison.
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The filter CHOP has 2 very
important parameters, the
“Effect” and “Filter Width”
parameters.
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We start with a noise CHOP.
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We can create different types of
animating noise, and see the
effects of filtering.
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The merge CHOP combines the
filtered and unfiltered data.
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The yellow line is the raw data.
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I’ll right click on the merge
CHOP, and choose “View” from the
pop-up menu.
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This is one of several methods
you can use to simultaneously
monitor different regions of the
Touch Designer workspace.
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I’ll adjust some of the noise
CHOP’s parameters.
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There are 7 types of filters,
and it is worth investigating
the effects each has on incoming
data.
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Some filter and width
combinations introduce more
delay than others.
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An “Effect” setting of zero
eliminates filter processing
altogether.
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Increasing the “Filter Width”
parameter causes more of the
surrounding sample range to be
included in the filter
calculation.
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Each application of the filter
chop may require a different
fine tuning of filter types and
parameters.
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Some applications may be
extremely accuracy or time
sensitive, while others may not.
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You can sharpen incoming data
that may be too smooth, to
create a greater value range.
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You can also de-spike incoming
data such as harsh audio spikes.
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The filter CHOP is very
powerful, and almost always
requires fine tuning based on
the specific application.
