Rolling Bass...err drum line...err? Portishead trick?

[dranfu]

Does anyone know how portishead ( as well as a thousand other groups) create that rolling/pitched up baseline that they use in the song "It could be sweet," off of their "Dummy" album. If you know that album, , then you kow the sound I'm talking about. It sounds like a bass drum pitched real low and made to sound like a bass, but they make that bass-like sound roll with in pitch. it's a very unique trick and it would be perfect for a trakc I'm working on.

In this clip, the part first apears at 0:03, and then again at 0:05, where you can hear it very clearly.

Any ideas?

here is a link to the song( just a quick 10 second clip): http://s62.yousendit.com/d.aspx?id=2W0Z ... YFJHUM9J1H

[forcesupreme]

Its just like you say yourself; a bass sound pitched up or down.

If you mean the higher basssound, i guess its a layered sinewave bass with a gliding pitch up and some kind of percussion sound, a tabla or conga pitched up. You could do this easy with a sampler like Battery or kontaks.

[dranfu]

thanks man, that is exactly what it is. You have a very good ear.

[plaster]

play with the LFO.

[provaznik]

it is probably just a pitch bend on a keyboard. i may be wrong tho. but that is the way i would do it.