Metric Halo ChannelStrip 2 - Manual (Page 23)

ChannelStrip User Guide
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and in verted states so the signal level will drop briefly when
you flip the state of the phase invert switch, but it will not
introduce a glitch or click into your audio.
Gate/Expander
T he next processing block is the Gate. The gate is used to
adjust the low level dynamics of the signal being processed.
Through the use of the external side-chain the gate can be
used to do acoustic triggers. In addition, the side chain filter
may be used to make the control of the dynamics frequency
sensitive. This can be useful when you are trying to gate out a
noisy signal that has a specific, very strong signal in a limited
frequency range when you want the gate to open.
T HEORY OF OPERATION
Based upon y our setting for the sidechain routing switch,
either the Pro Tools sidechain input signal or the channel sig-
nal is fed to the sidechain filter. The sidechain filter provides
one band of equalization that may be used to accentuate or
cut certain frequencies (parametric or shelf filters) or limit
the key to a certain range of frequencies (cut or bandpass fil-
ters). You control the filter type and the filter parameters with
the filter type button and the “dB”, “Hz” and “BW” knobs.