Specifications

Pro Tools Reference Guide454
Disable “Input” When Disarming Track
When the Disable “Input” When Disarming Track
(in “Stop”)
option is enabled in the Operation Pref-
erences, TrackInput monitoring is disabled when-
ever a track is taken out of record enable. This is
useful for certain workflows, such as when you are
recording on a series of tracks, one at a time.
Disabling this option allows TrackInput buttons to
remain enabled when deselecting the track Record
Enable button.
Setting Monitor Levels for
Record and Playback
Pro Tools remembers two different fader levels for
monitoring each audio track: one for when the
track is record-enabled, and one for when it is not
record-enabled.
Pro Tools keeps track of these two states for fader
levels automatically. If you adjust a fader when a
track is record-enabled and then turn off record en-
able for the track, the fader returns to its playback
level.
When audio tracks are record-enabled, their vol-
ume faders in the Mix window turn red, indicating
that the record monitor level is active.
Link Record and Play Faders
When the Link Record and Play Faders option is
selected in the Operation Preferences, Pro Tools
does not keep track of record and play levels for
audio tracks. In this case, record enabling an audio
track has no effect on the fader level for the track.
This lets you maintain a consistent mix regardless
of whether you are recording or just listening.
Reducing Monitoring Latency
There will inevitably be some audio delay, or
latency, in the monitoring signal (even if only a
few samples) due to the process of converting an
analog signal to a digital signal (input) and back
again (output). There may be additional latency
due to mixer configurations and processing.
Avid HDX and Pro Tools|HD systems have addi-
tional latency when using host-based plug-ins
(RTAS and AAX) because these plug-ins also use
your computer’s host processor.
Host-based Pro Tools systems use the host proces-
sor in your computer for all audio processing, play-
back, and recording, so there is always a small
amount of latency in the system. For example,
there may be some audible delay between the in-
coming signal and outgoing signal when monitor-
ing recording through Pro Tools.
With Pro Tools, latency occurs as follows:
• All Pro Tools systems can have RTAS MIDI-to-
audio latency (such as when playing an RTAS
virtual instrument live and monitoring the in-
strument’s output).
• Pro Tools systems have input-to-output moni-
toring latency on any record-armed tracks or
Auxiliary Inputs with live inputs.
• Avid HDX and Pro Tools|HD systems have
monitoring latency on tracks that have one or
more host-based plug-ins.
The latency amount is related to the
H/W Buffer
Size
setting—the larger the buffer size, the greater
the latency. You can reduce the amount of moni-
toring latency by reducing the
H/W Buffer Size set-
ting. However, even at the smallest buffer size,
there is still some latency.