Can someone identify this bass effect?

[Rain Dog]

Found this cool site for John Lee Hooker Jr.. He does Daddy's Boom Boom and there is a very interesting effect on the bass, especially in a blues context.

Track: http://www.onthehookblues.com/music/mp3/new/BoomBoom.mp3

Site: http://www.onthehookblues.com/music/index.shtml

[sir_modulus]

sounds like octave fuzz. Very fuzzy, but can't tell if its octave or not.

[moosapotamus]

That's a cool bass sound. I don't hear any octave. But along with the fuzz, I do hear a little bit of modulation, envelope follower... maybe it's something like a Tube Zipper with a good bit of clean signal blended in???

~ Charlie

[niftydog]

it's almost micro-synthy... but there's something about the sound that I haven't gotten out of my micro synth.

I'd even hazard a guess that it's one of those boss bass synths.. or an akai deep impact.

very cool!

[Bluesgeetar]

You know I was reading that book out about the music gear of the Beatles (the official book endorsed by whats left of the group), and it stated that Paul used a Tonebender fuzz on his bass.  Also mentioned George and John using a Grey fuzzface.  Also mentioned liberal use of the tonebender on other things.