Switcher pedal that blends the transition between A and B?

[K2000]

I think I need a line switcher pedal, it would be nice if the signal could do some sorta fade between the two signals, instead of of just slamming back & forth. A smooth transition.

Does it exist? If not, add it to the "Pedals that should exist" thread.

[K2000]

Combine these two idears:

[bigchiefbc]

I know that Barge used to make a blender with an expression control back in the day, not sure if any of them had two loops.

[K2000]

Toe up = A

Toe down = B

volume knobs to achieve unity.

Seems like a no brainer.

[K2000]

So I guess the Ernie Ball stereo pan/volume pedal could do it (?) if you reunite the two signals (passive mixer downstream, maybe) or run it into A and B amps. But not the same as a bypass looper doing it, in one unit with a treadle (or slow gear/swell-style timed transition)

[autopilot]

[youtube]http://www.youtube.com/watch?v=tHAsNrBlnjY[/youtube] instead of the dry another loop can be added

[ryan summit]

what about a stereo pan pedal
i think E.B.s stereo vol does it
i got a cheap rolls one and it sucks
but if some comany figured it out
it would rule
toe=A
heel=B
mid=unitahhhh
here tis
not sure if mono in
butyou could put it after the split or a/b

[K2000]

Looks like the Pigtronix Keymaster can do it… use an expression pedal to switch between effects loops.