Specifications
Chapter 5: DigiRack Real-Time TDM and RTAS Plug-Ins 79
To view time delay values and use TimeAdjuster to
compensate for the delay:
1 In the Mix window, Control-click (Windows)
or Command-click (Macintosh) the Track Level
Indicator to toggle between level (that appears
on the display as “vol”), headroom (“pk”), and
channel delay (“dly”) indications. Delay values
are shown in samples.
2 Apply the TimeAdjuster plug-in to the track
whose delay you want to increase, and Control-
click (Windows) or Command-click (Macin-
tosh) its Track Level indicator until the channel
delay value is displayed for that track.
3 Change the delay time in TimeAdjuster by
moving the Delay slider or entering a value in
the Delay field, until the channel delay value
matches that of the first track.
4 Test the delay values by duplicating an audio
track and reversing its phase while compensat-
ing for delay.
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.
Determining the DSP delay of track inserts
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.