Boss ME20B + PS5

[bloodline462]

I was reading a post on this forum about the PS-5 plus Expression pedals being able to produce the same effect as a Digitech Bass Whammy does, specifically, I'm trying to do the whale harmonics noise, like in the beginning of Eulogy by Tool.

My question is, could I link a PS-5 to my ME20B processor, which has an expression pedal built in, and use it as a delay, compression and overdrive pedal, and use the wah pedal as the expression to produce that noise? If so, how would I go about doing this.

Any help appreciated, thanks

[Oreomeister365]

The ps-5 cannot shift harmonized notes, only go from clean to harmonized. The ps-3 can however. The trade off being that the ps-3 is harder to find and doesn't sound as good as the ps-5.

[Taylor Livingston]

Does the ME20b actually have an expression pedal output? Even if it does, an expression pedal can be had on ebay for about $20 including shipping, so if you're going to spend the money on a PS5 or 3, just spring for a real expression pedal.