Audio Damage Replicant 1.5 - Manual (Page 13)

one another. A low-pass filter attenuates signals above its cutoff frequency, passing lower-frequency signals;
whereas a high-pass filter attenuates signals below its cutoff frequency, passing higher-frequency signals. As
you move the LPF filter control‟s circle to the right, the corner frequency of the low-pass filter increases,
allowing more of the signal to pass. On the other hand, as you move the HPF filter control‟s circle to the right,
the corner frequency of the high-pass filter increases, allowing less of the signal to pass. The low-pass filter
has a frequency range of 40 to 20,000Hz and the high-pass filter has a range of 10 to 10,000Hz.
These filters are connected in series, i.e. the looped audio signal passes first through the low-pass filter and
then through the high-pass filter. If you set the frequency of the low-pass filter to less than the frequency of
the high-pass filter, you‟ll hear little or no output signal.
Moving the white circles vertically changes the resonance of the filters. Increasing the resonance of a filter
causes it to accentuate the frequency components of a signal near the filter‟s corner frequency. This makes
the filter sound more “electronic” and at high values creates a whistling sound.
When the STATIC button is depressed, the filters operate at the frequencies you set with the LPF and HPF
controls. When the button is not engaged, the filters are automatically modulated or swept as the looped
audio repeats. The first time the audio is played back the filters are set to their highest and lowest frequency
settings, respectively (i.e. the low-pass filter is set to 20kHz and the high-pass filter is set to 10Hz), and the
audio is passed without alteration by the filters. On subsequent repetitions of the looped audio the filter
frequencies are moved toward the frequencies set with the LPF and HPF controls. On the last repetition of the
audio the filter frequencies reach the values set by the controls. In other words, the filters open fully for the
first repetition of the audio, and close to the frequencies set by the controls as the audio repeats. This can be
used to impart a changing timbre to the repeated audio to make it more distinct from the original.
4. Panning
Replicant includes an automatic panning section which moves the repeating audio back and forth in the stereo
field. The auto-panner is controlled by an XY pad, a slider, and a pair of buttons. The blue line within the PAN
control graphically depicts the effect of the panning section.
The vertical position of the white circle in the PAN control adjusts the
overall effect of the auto-panner. Clicking and dragging the circle
upwards increases the distance the audio appears to move from the
center. If the circle is at the bottom of the XY control, the auto-panner
has no effect.