Does this pedal exist (filter)

[LaceSensor]

HI

Does anyone know of a self contained treadle/expression based pedal that instead of a wah sound gives a filter (low pass / band pass) sweep? I appreciate this can be done with MANY pedals using add-on expression pedals (classic example would be the moogerfooger low pass) however this requires lots of space.

The same is true of a number of other options.

The other consideration, outside a commercial offering, is to build a "static filter" into an expression pedal "shell" and solve the problem that way.

Any advice would be excellent.

Thanks

[micromegas]

digi2t's Tresonator. There was a build thread here, but now the first post is deleted....

[micromegas]

as a comercial option, you have this one:

http://www.sonuus.com/products_wahoo.html

but also takes a lot of space.