Auto-crossfade to avoid glitchy signal-path switching?

#1

It's been super useful getting ideas from this forum to help me overcome all my initial sticking points as a new Axoloti user. So, here goes again (and someday I will know enough to pay it forward).

I have two signal paths with different audio effects and I am using some logic in the patch to switch between them. As you might expect, you can hear the switching, although it's actually less noticeable than I thought it would be.

It seems like maybe one way to smooth out the glitchiness would be to have a triggered automatic crossfade from one path to another. So, a toggled trigger delivering 1 causes a fade from signal path A to path B, and a trigger delivering 0 causes a fade from path B to path A.

It seems like the component pieces to make this happen probably exist somewhere but I can't figure it out yet. I can find the xfade objects but can't find anything that I can use for a controllable but automatic ramp from 0 to 1 or vice versa.

Any ideas?

#2

I have succesfully used an envelope to do something like you want to achieve(If I remember correctly, the envelope should be inverted, not 100% sure about this, depends on which input you connect you signal to in the crossfader).

The cool thing about using an envelope is that you can make a very smooth transition, even let it crossfade/fade out over a few seconds. This is cool if you are using larger reverbs.

#3

Have you tried using math/slew before the xfade object?

#4

Aha, yes, thank you! That worked. It took about an hour of messing around to figure out how to get the rescaling and inversions right. I had to convert the envelope ramps (running from 64 to 0) so that one goes -64 to +64 and the other does the reverse. But it sounds a lot better... totally validating the concept. Yay!

#5

Haha... I just saw this as I was posting the other reply. Thanks for the suggestion and I might go back and give it a try. The patch is seriously cluttered up with a lot of logic that seems unnecessary, using the envelope. Maybe slew would be simpler/cleaner... thank you!!