Pro Tools Reference Guide
752
Sample Rate
This option lets you save to any of several sam-
ple rates. Choices are dependent on your
Pro Tools system and Digidesign audio inter-
faces.
Sample Rate Conversion Quality
If you choose a sample rate that differs from the
original sample rate of the session, the conver-
sion options become available. You can config-
ure the conversion quality, and schedule con-
version to occur during, or after, the bounce. See
“Sample Rate Conversion Quality Option” on
page 752 for more information.
The following are the more common sample
rates, and their applications. Higher sampling
rates will provide better audio fidelity for record-
ing and playback, and also for processing with
dynamics, dither (with noise shaping), and ana-
log emulation plug-ins.
192000
This is a supported sample rate for some
audio DVDs, and provides the highest quality
audio fidelity with compatible audio interfaces
(such as the 192 I/O).
176400
You may want to work at a sample rate
of 176.4 kHz if the final delivery will be at
44.1 kHz (such as compact disc). This will pro-
vide a slightly faster sample rate conversion to
44.1 kHz than from 192 kHz.
96000
This is a supported sample rate for DVD
audio and provides high-quality audio fidelity
with compatible audio interfaces (such as the
192 I/O, 96 I/O, 96i I/O, and Digi 002).
88200
You may want to work at a sample rate of
88.2 kHz if the final delivery will be at 44.1 kHz
(such as compact disc). This will provide a
slightly faster sample rate conversion to
44.1 kHz than from 96 kHz.
48000
This is a standard sample rate for Profes-
sional and DVD video, as well as some broadcast
and recording label archiving, and is supported
by DA-88/98, DAT, and ADAT decks.
44100
This is the standard sample rate for com-
pact discs (CD), and is supported by DA-88/98,
DAT, and ADAT decks.
Custom
For a custom sample rate, click in the
sample rate window and manually enter in a
value.
Pull-Up and Pull-Down Rates
All available sample
rates support pull-up and pull-down rates, or
other specialized rates.
Sample Rate Conversion Quality
Option
When you specify a different sample rate for a
bounced file (for example, when mixing a ses-
sion recorded at 96 kHz to 44.1 kHz for release
on an audio CD), Pro Tools uses the Conversion
Quality option to determine the quality of sam-
ple rate conversion used.
There are five possible settings, ranging from
Low (lowest quality) to Tweak Head (highest
quality). The higher the quality of sample rate
conversion, the longer it takes to convert the
bounced file.
Use Squeezer
(8-Bit Resolution Only)
The Use Squeezer option uses a proprietary DSP
algorithm specifically designed for performing
8-bit conversion of simple source files such as
voice-overs. It optimizes the dynamics of the au-
dio by preprocessing it using compression, lim-
iting, and gating before conversion to 8-bit res-
olution. This results in greater apparent
Summary of Contents for Pro Tools
Page 1: ...Pro Tools Reference Guide Version 7 3 ...
Page 15: ...1 Part I Introduction ...
Page 16: ...2 ...
Page 33: ...19 Part II System Configuration ...
Page 34: ...20 ...
Page 44: ...Pro Tools Reference Guide 30 ...
Page 94: ...Pro Tools Reference Guide 80 ...
Page 95: ...81 Part III Sessions Tracks ...
Page 96: ...82 ...
Page 108: ...Pro Tools Reference Guide 94 ...
Page 130: ...Pro Tools Reference Guide 116 ...
Page 269: ...255 Part IV Recording ...
Page 270: ...256 ...
Page 310: ...Pro Tools Reference Guide 296 ...
Page 345: ...331 Part V Editing ...
Page 346: ...332 ...
Page 402: ...Pro Tools Reference Guide 388 ...
Page 496: ...Pro Tools Reference Guide 482 ...
Page 548: ...Pro Tools Reference Guide 534 ...
Page 571: ...557 Part VI MIDI Editing ...
Page 572: ...558 ...
Page 596: ...Pro Tools Reference Guide 582 ...
Page 637: ...623 Part VII Mixing ...
Page 638: ...624 ...
Page 702: ...Pro Tools Reference Guide 688 ...
Page 771: ...757 Part VIII Video Sync Surround ...
Page 772: ...758 ...
Page 792: ...Pro Tools Reference Guide 778 ...
Page 806: ...Pro Tools Reference Guide 792 ...
Page 856: ...Pro Tools Reference Guide 842 ...