[sdiy] Delayed LFO fade-in time
rburnett at richieburnett.co.uk
Tue Mar 15 21:52:24 CET 2016
When programming LFO delay to implement delayed vibrato is there any
convention as to how the "fade-in" time is determined?
For instance, I know that if the LFO delay is set to zero then there is no
delay and pitch modulation occurs immediately at full depth on all synths
I've tried. However, if I select some LFO delay, then there is no pitch
modulation for some time, and then it is introduced *gradually*. Should the
"fade-in" time for the pitch modulation be proportional to the delay time?
Or maybe it should always be a fixed amount of time? ...or maybe even a
fixed number of LFO cycles at whatever the LFO rate is?
Also, I believe that LFO delay should only work on pitch modulation of the
VCO, and not actually delay the introduction of VCF modulation or
pulse-width modulation? Is this other people's understanding too?
For a polysynth LFO delay will be polyphonic? So that's one LFO oscillator
to implement in-phase vibrato across all voices, but 8 separate mono-stable
timers for the LFO delays in an 8 voice synth?
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