DigiRack Plug-ins Guide
90
TimeAdjuster
The TimeAdjuster plug-in provides three func-
tions:
• Compensation for delays due to TDM- or
RTAS-based routing
• Gain compensation (+/– 24 dB)
• Phase inversion for correcting out-of-phase
signals
The TimeAdjuster plug-in is an efficient way to
compensate for DSP or host-based processing
delays in your Pro Tools system.
There are three versions of the TimeAdjuster
plug-in, each of which supports different sam-
ple delay ranges:
Short
Supports a maximum delay of 256 sam-
ples at all sample rates.
Medium
Supports a maximum delay of 2048
samples at all sample rates.
Long
Supports a maximum delay of 8192 sam-
ples at all sample rates.
TimeAdjuster Controls
Phase Invert
Inverts the phase (polarity) of the
input signal. While most Digidesign plug-ins
supply a phase invert button of their own, some
third-party plug-ins may not. Phase inversion is
also useful for performing delay compensation
by tuning unknown delay factors by ear (see
“Using TimeAdjuster for Manual Delay Com-
pensation” on page 91).
Gain
Provides up to 24 dB of positive or negative
gain adjustment. This control is useful for alter-
ing the gain of a signal by a large amount in real
time. For example, when you are working with
audio signals that are extremely low level, you
may want to adjust the channel gain to a rea-
sonable working range so that a fader is posi-
tioned at its optimum travel position. Use the
Gain control to make a wide range of gain ad-
justment in real time without having to perma-
nently process the audio files, as you would with
an AudioSuite plug-in.
Delay
Provides up to 8192 samples of delay com-
pensation adjustment, or general adjustment of
phase relationships of audio recorded with mul-
tiple microphones, depending on which version
of TimeAdjuster is used. It defaults to a mini-
mum delay of four samples, which is the delay
created by use of the TimeAdjuster plug-in itself.
While phase inversion controls have been used
for many years by engineers as creative tools for
adjustment of frequency response between mul-
tiple microphones, sample-level delay adjust-
ments provide far more control. Creative use of
this control can provide a powerful tool for ad-
justing frequency response and timing relation-
ships between audio signals recorded with mul-
tiple microphones.
TimeAdjuster plug-in
For special information on Delay Compen-
sation and Time Adjuster, see the Pro Tools
Reference Guide.
Summary of Contents for DigiRack
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