Pro Tools|HD User Guide2
All Pro Tools|HD systems also require at least
one Pro Tools|HD audio interface (sold sepa-
rately). See “Pro Tools|HD Audio Interfaces” on
page 4.
Pro Tools HD Software
Capabilities
Pro Tools HD on Mac or Windows provides the
following capabilities:
• Up to a total of 192 voiced audio tracks (up
to 256 voiceable audio tracks), 160 Auxil-
iary Input tracks, 64 Master Fader tracks,
128 VCA Master tracks, 256 MIDI tracks,
128 Instrument tracks, and 64 video tracks
per session
• 16-bit or 24-bit audio resolution, at sample
rates up to 192 kHz
• Non-destructive, random-access editing
and mix automation
• Audio processing with up to 10 TDM or
RTAS plug-ins per track, depending on your
computer’s capabilities
• Up to 10 hardware inserts per track
• Up to 10 sends per track
• Up to 128 internal busses for routing and
mixing
The number of simultaneous tracks of audio
recording or playback depends on the type of
Pro Tools|HD system.
Audio Recording and Playback
Capabilities
Pro Tools|HD 1
Pro Tools|HD 1 systems provide recording and
playback of 24-bit or 16-bit audio files with the
following voiced track counts:
• Up to 96 tracks at 44.1 kHz or 48 kHz
• Up to 48 tracks at 88.2 kHz or 96 kHz
• Up to 18 tracks at 176.4 kHz or 192 kHz
Pro Tools|HD 2 Accel and HD 3 Accel
Pro Tools|HD 2 Accel and HD 3 Accel systems
provide recording and playback of 24-bit or
16-bit audio files with the following voiced track
counts:
• Up to 192 tracks at 44.1 kHz or 48 kHz
• Up to 96 tracks at 88.2 kHz or 96 kHz
• Up to 36 tracks at 176.4 kHz or 192 kHz
Pro Tools Hardware Overview
This section describes each hardware compo-
nent of a Pro Tools|HD system. The number of
Pro Tools|HD cards in your system will differ de-
pending on your system configuration.
For more information on the print, elec-
tronic, and web-based resources available
to help you use Pro Tools, see Appendix G,
“Resources.”
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