[Not a Bug] Triangle LFO in Certain Chorus Types

steadystate

steadystate

Fractal Fanatic
I'm getting very strange results when selecting a Triangle LFO in the following Chorus types:

Analog Mono
Analog Stereo
Dimension 2
Dimension 3
Japan CE-2

Definitely not a triangle. The pitch change should toggle between two opposite values equidistant from the original. But it swoops and changes erratically. Is this intentional? I hope not. The sawtooths don't sound right either, on any mode. The pitch swoops quite intensely instead of being a constant pitch change as would happen with a sawtooth.

Firmware 1.12.
 
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Those types use “analog” delay lines. The delay lines are virtual bucket brigade devices with the delay time controlled by a virtual oscillator. That behavior is consistent with how they would work in the real world.
 
Ok. I've just never used a BBD chorus that sounded like this myself. Any analog chorus I've owned with a triangle LFO produced a tiny pitch variation at the discontinuity. The triangle in the Chorus block sounds more like a unidirectional log curve (clip attached). But you're the man, so I'll take your word for it. Could you verify that this is the correct behavior for the triangle analog LFO?

 
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Now that I think about it more carefully, the issue was that I did not allow a sufficient Delay Time to accommodate both directions of the sweep at that Depth setting (specifically, the portion where the delay is reduced). I would expect a real world analog delay to do the same. My bad. Title edited.
 
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