How do you change your voice like this?

[jtpetch]

Hi, I recently saw this music video on youtube, (do forgive me for the pony video, but it's the only example i could find ), and around 1:03 when the green one starts to sing, it sings with this, what i'd describe as, techno-indifferent voice. Now. I know how to change pitch and such in Audacity (i use that quite a bit), but I've never seen how to do this. Did they use Audacity, or some other software?
Thanks all (and again, sorry for the pony vid)!

 

[Ijack]

That sounds like phasing - very popular in 1960s music. You can do that in Audacity: http://www.ehow.com/how_8323039_use-phaser-audacity.html

 

[jtpetch]

Hm, I tried using the phaser, and it seems to only add an immediate echo to the recording

 

[jtpetch]

Sorry, but ,*bump*. I'm still wondering