For a fuller explanation of chorus & flange, and the difference between them, I recommend
these articles:
http://www.harmony-central.com/Effects/Articles/Chorus/
http://www.harmony-central.com/Effects/Articles/Flanging/
It amounts to different typical delay times (20-30ms for chorus vs. 1-10ms for flange) and
flange having a feedback path.
Warbler offers delay times from below 1ms to more than 1s, and offers feedback, so clearly
can offer a wider range of effects than is usual for a simple chorus/flange.
Delay effects
By raising the bias control and using the coarse depth control, with a lowish speed setting,
you can select delay times more commonly associated with delay effects than with a cho-
rus (up to over 1 second). Use the feedback control for repeating echoes.
When you combine this with the depth and speed LFOs, and use bias settings that are
somewhere between 0.0 and 1.0, you can get very complex effects - sort of modulated vi-
brato chorusy delays.
Extreme sound mangling
Use the coarse speed control to select audio frequency LFO modulation. You’ll also need to
crank up the coarse depth control to hear an effect. Using these settings you can easily get
some weird ring-modulation-like sounds, that are especially useful on drum or other non-
pitched parts.
The controls in depth
Speed
The 3 speed knobs together set the main LFO speed. Their
values are simply added. The readout above the knobs
shows the current speed value being used (NB this also
takes into account the Speed LFO - see below).
The knob ranges are
• Superfine: 0-1Hz, useful for very slow modulations.
• Fine: 0.5-20Hz, useful for normal vibrato effects.
• Coarse: 10-5000Hz, useful for audio-rate modulation sound effects.
