WaveWarp 2.0 Component
      
Delays:
Functional Description
The output is a mix of the original signal plus a delayed version of itself,
with a delay length which varies in time.
The characteristics of the time-varying delay and of the
relative amplitudes between the original and delayed signals
are adjusted
in the Parameter Window, as summarised in the
following table. Stereo signals have separate adjustments for left and
right channels.
| Parameter | Purpose |
|---|
| "Modulation" buttons | Selects the shape of the time-varying delay profile |
| "Delay" slider | Sets the maximum delay length |
| "Rate" slider | Sets the rate at which the time-varying delay sweeps through its profile |
| "Depth" slider | Sets the depth of modulation of the time-varying delay: a value of 0 corresponds to a constant delay of the maximum length;
a value of 1 corresponds to maximum modulation of the delay whereby the delay length sweeps from zero to the maximum length, following a time-history in accordance with the chosen profile |
| "Skew" slider | Adjusts the time-asymmetry of the shape of the delay profile (only enabled for certain shapes). A value of 0.5 corresponds to a symmetric profile. |
| "Mix" slider | Adjusts the relative amplitudes of the delayed and original signal paths. A value of 0.5 corresponds to an equal mix. |
| "Output" slider | Adjusts the amplitude of the output signal. |
NOTE: With the appropriate settings, this component can be used as a
flanger or chorus effect, as well as for creating interesting and bizarre sounds.
Algorithm
The time-varying delay is implemented using a circular buffer with linear (first order) interpolation
to avoid discontinuities
(see
[Moore]
chapter 4.2.5 for further information).
The delay time-history is stored
in a wavetable, and is scanned using a table-lookup oscillator algorithm
(see
[Moore]
chapter 3.1.7 for further information).
See
[Roa] p.436-440
for an introduction to variable-time-delay-effects, and
[HRM]
for general information on audio effects.
Signal Implementations
| Audio signals | Control signals | Description |
|---|
| Single input single output mono-mono | n/a | Effect applied to mono input, sent to mono output |
| Single input single output mono-stereo | n/a | Effect applied to mono input with separate settings for left and right stereo output channels |
| Single input single output stereo-mono | n/a | Effect applied with separate settings to left and right stereo input channels, then averaged and sent to mono output |
| Single input single output stereo-stereo | n/a | Effect applied with separate settings to left and right stereo input channels for left and right stereo output channels, respectively |
Related components:
Example DrawingBoards illustrating usage:
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