LinPlug relectro - Manual (Page 28)

This also is the basic principle for the EQ, if a wave cycle is below a certain
frequency the Low-EQ's Gain setting determines how much its changed in
Level. If a wave cycle is higher in frequency than the High-EQ's Gain does
affect such high frequency wave cycle.
But relectro's Per-Wave processing does also include pitch changes: Each
wave cycle can be reduced or increased in pitch, using one of three
operation modes:
This is an example of raised pitch in Gap mode, as in raised pitch every
wave cycle is shorter, there are simply gaps between the cycles. Another
mode allows to fill these gaps:
In Fill mode, when one cycle is completed, but the next is “not yet there” (its
time has not yet come), the wave-cycle is simply repeated.
In this example, after the full level pulse wave completed, its played back
again, filling the gap. This means that the triangular cycle starts a bit later
(which is not perceived as any kind of delay btw). When the triangular wave
is finished, its already time to play the next pulse wave, so the triangular
wave has not to be repeated. The same applies for the pulse wave. Just
the final triangular wave will be repeated, as it was not yet time for the next
wave (whatever that may be, we don't have it in our example).
LinPlug relectro user manual Page 28