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Rate, Depth, Feedback – Audio Damage Liquid User Manual

Page 10

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The effect of this knob is symmetric; rotating it counter-clockwise from the center position produces much the
same sonic result as rotating it clockwise. This is because the same relative delay time is created in both
directions. Rotating the knob from one side, past the center point, to the other side creates the through-zero
flanging effect as the relative delay time decreases and passes through zero. The range of this knob is -5 to
+5 msec.

2. Rate

The RATE knob controls the speed or frequency of Liquid’s modulation oscillator. This oscillator varies the
relative delay times of the two delay lines, producing a familiar up-and-down flanging effect. As you rotate the
knob clockwise the modulation rate increases. Slow modulation rates are useful for creating timbral changes
over a measure or more; fast modulation rates are useful for chorus-like effects. The range of this knob is
0.02Hz (one cycle every 50 seconds) to 10Hz (ten cycles per second).

Note that if the DEPTH knob is set at zero, the modulation oscillator has no effect and you won’t hear
anything change when you rotate the rate knob.

3. Depth

The DEPTH knob controls how much the modulation oscillator varies the delay times. When it is rotated fully
counter-clockwise, the modulation oscillator has no effect. As you rotate the knob clockwise, the modulation
oscillator changes the delay times by an increasing amount. The modulation oscillator is bipolar, that is, it

varies the relative delay time above and below the time set with the manual knob. If the MANUAL knob is set
at its center position, the cycles of the modulation oscillator will change the relative delay time from zero to a
positive value, back to zero, below zero to a negative amount, back to zero, and so on.

4. Feedback

The FEEDBACK knob mixes the delayed signal back into the input of the delay lines. This increases the size of
the peaks and notches in the comb-filter frequency response created by the delay lines, producing a more
pronounced flanging effect. As you rotate the knob clockwise, the amount of signal fed back is increased. Note
that some combinations of a high feedback setting and certain input material may produce nearly self-

oscillating ringing, loud signals, and/or some distortion. If you find this unpleasant, back off on the FEEDBACK
knob and/or reduce the level of the signal entering Liquid.