Specifications

DigiRack Plug-Ins Guide74
Signal Generator Controls
Frequency Sets the frequency of the signal in
hertz. Values range from a low of 20 Hz to a
high of 20 kHz in a 44.1 kHz session. The upper
limit of the frequency range for this setting will
increase to match the Nyquist frequency (half the
sample rate) in 96 kHz and 192 kHz sessions
(HD-series systems only).
Level Sets the amplitude of the signal in deci-
bels. Values range from a low of –95 dB to a high
of 0.0 dB.
Signal These buttons select the waveform.
Choices are sine, square, sawtooth, triangle,
white noise, and pink noise.
Pitch
(TDM Systems Only)
The Pitch plug-in is designed for a variety of au-
dio production applications ranging from pitch
correction of musical material to sound design.
Pitch processing uses the technique of varying
sample playback rate to achieve pitch transposi-
tion. Because changing audio sample playback
rate results in the digital equivalent of vari-
speeding with tape, this is an unsatisfactory
method since it changes the overall duration of
the material.
Pitch transposition with the Pitch plug-in in-
volves a much more complex technique: digi-
tally adding or subtracting portions of the audio
waveform itself, while using de-glitching cross-
The pink noise generator in the Signal Gen-
erator plug-in is calibrated at RMS level,
rather than peak level.
The Signal Generator plug-in is not in-
tended for rigorous test purposes; it is a sim-
ple level calibration tool.
Pitch plug-in