Filter bandwidth, Equalizer – Metric Halo ChannelStrip 2 User Manual

Page 37

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ChannelStrip User Guide

33

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,

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