Specifications

Digidesign Plug-Ins Guide32
Vari-Fi
Vari-Fi provides a pitch-change effect similar to
a tape deck or record turntable speeding up from
or slowing down to a complete stop. Features in-
clude:
• Speed up from a complete stop to normal
speed
• Slow down to a complete stop from normal
speed
Vari-Fi is an AudioSuite-only plug-in.
Purposely Degrading Audio
Contemporary music styles, especially hip-hop,
make extensive use of retro instruments and
processors such as vintage drum machines, sam-
plers, and analog synthesizers. The low bit-rate
resolutions and analog “grunge” of these de-
vices are an essential and much-desired part of
their sonic signatures. That is why Digidesign
created D-Fi.
The D-Fi suite of plug-ins combines the best of
these instruments of the past with the flexibility
and reliability of the Pro Tools audio production
system. The result is a set of sound design tools
that allows you to create these retro sounds
without the trouble and expense of resampling
audio through 8-bit samplers or processing it
through analog synthesizers.
Lo-Fi
Lo-Fi down-processes audio by reducing its sam-
ple rate and bit resolution. It is ideal for emulat-
ing the grungy quality of 8-bit samplers.
Sample Rate
The Sample Rate slider adjusts an audio file’s
playback sample rate in fixed intervals from
700 Hz to 33 kHz in sessions with sample rates
of 44.1 kHz, 88.2 kHz, or 176.4 kHz; and from
731 Hz to 36 kHz in sessions with sample rates
of 48 kHz, 96 kHz, or 192 kHz. Reducing the
sample rate of an audio file has the effect of de-
grading its audio quality. The lower the sample
rate, the grungier the audio quality.
The maximum value of the Sample Rate param-
eter is Off (which effectively means bypass).
Lo-Fi
The range of the Sample Rate parameter is
slightly different at different session sample
rates because Lo-Fi’s subsampling is calcu-
lated by integer ratios of the session sample
rate.