User`s guide

Pro Tools Reference Guide320
Resolution
This option in the Pro Tools Output Op-
tions dialog sets a bit resolution for the
converted audio file. See “Resolution” on
page 315 for explanations of each resolu-
tion setting.
Channels
This option appears in the Pro Tools Out-
put Options dialog only when you are ex-
porting selected audio as files, not when
you are bouncing to disk.
Mono Saves all selected regions as individ-
ual files.
Stereo from .L/.R Saves all matching region
pairs from a selection as stereo interleaved
files. Regions that don’t have matching
.L/.R named pairs are not exported.
Sample Rate
This option in the Pro Tools Output Op-
tions dialog lets you save to any of several
sample rates. If you choose a sample rate
that differs from the original sample rate of
the session, Pro Tools performs sample rate
conversion on the bounced files. See “Con-
version Quality” on page 321 for informa-
tion on setting the quality of this sample
rate conversion.
48000 This is the standard sample rate for
consumer-level DAT decks.
44100 This is the standard sample rate for
compact discs and pro-level DAT decks. It is
also used for high-fidelity audio destined
for playback on newer Macintosh comput-
ers with 16-bit audio playback capability,
as well as on Windows computers.
22050 and 11025 These sample rates are
commonly used for lower-fidelity audio
destined for playback on newer Macintosh
computers with 16-bit audio playback ca-
pability, as well as on Windows computers.
22254 and 11127 These sample rates are
commonly used for lower-fidelity audio
destined specifically for playback on older
Macintosh computers not equipped with
16-bit audio playback capability.
Custom This allows you to choose a sample
rate other than the choices above.
Use Squeezer
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 opti-
mizes the dynamics of the audio by prepro-
cessing it using compression, limiting, and
gating before conversion to 8-bit resolu-
tion. This results in greater apparent loud-
ness in the signal, and improved intelligi-
bility. If you are converting a more
complex 16-bit audio file to 8-bit resolu-
tion, test this option before converting all
of your material.