[sdiy] Adding Tap Tempo to an LFO

[Richard Wentk]

At 16:11 18/07/2005, Paul Perry wrote:
>Unless a LFO is digitally generated, it is pretty difficult to
>get tap tempo going.
>Typically what you do is, run an oscillator & count the cycles between the
>taps.
>Then, you can generate a pulse at the desired LFO rate, by counting to this
>number
>again...but, to make say a sine LFO at this frequency! that isn't easy.

Rising ramp reset/triggered by first tap, stopped and latched by second -> 
control voltage -> VCLFO.

Calibration could be interesting, but it's not hard in principle.

Easier and more accurate to do digitally though.

Richard