Filter bandwidth, Equalizer – Metric Halo ChannelStrip 2 User Manual
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ChannelStrip User Guide
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bandpass filter types this controls the center frequency of the
filter. For the high and low cut filter types this control adjusts
the 3 dB point of the filter. For the shelving filters this control
adjusts the shelf transition point.
F
ILTER
BANDWIDTH
Use this knob (labeled “BW” in the illustration) to adjust the
characteristic width of the filter. This control only has effect
for peaking, shelving and bandpass filter types. Please note
that this parameter controls the bandwidth (measured in
octaves), not the quality factor (or “Q”). If you have been
using Q controls, the numbers will be backwards from what
you are used to. Small numbers mean narrow filters and
large numbers mean wide filters. For peaking and bandpass
filter types, this parameter controls the bandwidth of the fil-
ter in octaves. For the high and low shelving filter types this
parameter adjusts the amount of dip/peak and the slope of
the shelf. When this parameter is set to 0.1 you will get the
largest dip/slope available and when the parameter is 2.5,
you will get a classic first order shelf (which has a transition
band that is about 1 decade wide; e.g. if it is a high shelf
with a frequency of 10 kHz and a gain of 10 dB, the gain will
be at 0 dB near 1kHz).
Equalizer
The next processing section is the Equalizer. The equalizer
may appear in the signal chain before the compressor sec-
tion depending on the state of the “Post EQ’ button in the
compressor. The equalizer in ChannelStrip is a very flexible,