Specifications

DigiRack Plug-Ins Guide58
When to Compensate for Delays
If you want to compensate for delays across your
entire system with Time Adjuster, you will want
to calculate the maximum delay incurred on
any channel, and apply the delays necessary to
each channel to match this channel.
However, this may not always be necessary. You
may only really need to compensate for delays
between tracks where phase coherency must be
maintained (as with instruments recorded with
multiple microphones or stereo pairs). If you are
working with mono signals, and the accumu-
lated delays are small (just a few samples, for ex-
ample), you probably needn’t worry about delay
compensation.
Trim
The Trim plug-in can be used to attenuate an au-
dio signal from –∞ (Infinity) dB to +6 dB. For ex-
ample, using a multi-mono Trim plug-in on a
multi-channel track provides simple, DSP-effi-
cient muting control over the individual chan-
nels of the track. This capability is useful, since
Track Mute buttons mute all channels of a
multi-channel track and do not allow muting of
individual channels within the track.
Trim Controls
Phase Invert Inverts the phase (polarity) of the
input signal to change the frequency response
characteristics between multi-miked sources or
to correct for miswired microphone cables.
Gain Provides –∞ dB to +6 dB of gain adjust-
ment.
Output Meter Indicates the output level, includ-
ing any gain compensation added using the
Gain control.
Mute Mutes the signal output.
For more information about delays and
mixing in TDM systems, see the Pro Tools
Reference Guide.
Trim plug-in
Alt-click (Windows) or Option-click (Mac-
intosh) the Trim selector to open a Plug-In
window for each channel of a multi-chan-
nel track.
Trim gain range is + 6dB even in +12 dB
Fader Gain sessions (Pro Tools 6.4 and
higher).
See also “Linking and Unlinking Controls
on Multi-Mono Plug-ins” on page 15.