Change direction?

blackburst's picture

I feel pretty stupid for asking this because I'm sure it's reaaaaly simple. How can I seamlessly change the direction of an lfo? Eg. If I have a sawtooth up rotating something, changing it to sawtooth down doesn't seem to change its direction from its current position. And multiplying it by -1 and having it as a second input on a multiplexer doesn't work as desired. How can i do this?

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gtoledo3's picture
Re: Change direction?

Maybe you could try offsetting by a certain amount, or changing phase? I'm not sure what the values would be... a percentage of the Period value I think (?). If patch time was allowed to use negative numbers, this would be very simple (one would just roll back patch time, but when it hits 0, things stop, unfortunately.)

franz's picture
Re: Change direction?

set its timebase to external then drive it with an integrator whose input is 1. then set the integrator's input to -1.

if you run into negative timebase, just add a big number to give you enough room

blackburst's picture
Re: Change direction?

That's it, thanks Franz, I knew the integrator had to be in there somewhere :)