Filter band frequency, Filter bandwidth, Filter band frequency filter bandwidth – Metric Halo ChannelStrip 2 User Manual

Page 41

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ChannelStrip User Guide

37

band above 15 dB, the filter gets very aggressive and reso-
nant. You can use this feature to good effect when you need

to reconstruct a resonance for a recorded instrument that

lacks one. For example, you could place a narrow +24 dB

peaking filter between 60 and 80 Hz on a kick drum track

that lacked a “belly” for the drum.

F

ILTER

BAND

FREQUENCY

Use this knob (labeled “Hz” in the illustration) to adjust the

characteristic frequency of the filter. For the peaking and

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

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