delay time in analog BBD

[POTL]

Hello everyone. I am interested to know about setting the delay time.
1) in classical solutions, it was proposed to simply change the capacitance of the capacitor, using an SPST switch and an additional capacitor installed in parallel (marked with 1 in the diagram).
2) The Walrus in the Julia chorus pedal uses a variable resistor to control the LAG to change the delay time. (marked with number 2 on the diagram).



3) on some Chorus and Flanger pedals, change the LFO offset. some manufacturers call it Manual, some call it delay time. Simulation shows that this changes the midpoint around which the LFO operates, more voltage, the LFO works in the upper range, less voltage and it works in the lower range. but is this really a delay time adjustment or just an LFO offset? It is indicated by an arrow on the diagram.



Do all 3 methods really affect latency and work the same?

[ElectricDruid]

1) in classical solutions, it was proposed to simply change the capacitance of the capacitor, using an SPST switch and an additional capacitor installed in parallel (marked with 1 in the diagram).

This is one of the most direct ways to change the frequency range of the clock. Pretty much all of them use an R-C combination somewhere to set the timing.

2) The Walrus in the Julia chorus pedal uses a variable resistor to control the LAG to change the delay time. (marked with number 2 on the diagram).

...so the obvious alternative to tweaking the C is to tweak the R! Since the clock frequency is the product of R and C, both of these approaches are equivalent.

Although in reality, that "Lag" control looks to me like it's really another LFO offset control.

3) on some Chorus and Flanger pedals, change the LFO offset. some manufacturers call it Manual, some call it delay time. Simulation shows that this changes the midpoint around which the LFO operates, more voltage, the LFO works in the upper range, less voltage and it works in the lower range. but is this really a delay time adjustment or just an LFO offset? It is indicated by an arrow on the diagram.

On a chorus or flanger pedal, the LFO is modulating the clock, so "an LFO offset" *is* "a delay time adjustment". They're the same thing.
Where they might differ is in *how* the LFO modulates the clock. Some adjust the clock period, some adjust the clock frequency linearly, some adjust the frequency exponentially.

[POTL]

Thank You