It's kinda like stepping on the wah pedal on an electric, but I wanna know how to achieve this effect on guitar. Strangely my sister's guitar has this sound and I like it alot, but on my own guitar it sounds a little too crisp and bright. Also, my sister's guitar strings are really old and battered, does that have anything to with it?
Quote by WtrPlyr

Sums up my reaction perfectly.
Everyone is entitled to an opinion.

Feel free to express yours so I can make an informed judgement about how stupid you are.
Uhhhhh get insanely thin strings and strum like a *troll*?

(Heh, see what I did? )
I'm up for building you a pedal.
(Or modding nearly anything moddable)
(PM Me.)
I can get that sound easily but I think it's more of a "barr woooop" sound.
Where Waldo?