by Two-Twelve » 29 Mar 2012 04:12
Well, I'm no expert but here's what I've gathered over the past few months of studying.
First you want to have a decent variety of basses. Dubstep has significantly changed over the past 5 years or so, going from most tracks having only one or two basic wobble basses to having several varying basses. Most tracks these days will have a few different wobbles at varying LFO speeds, some stabs, and maybe a few vocal/talking "yoy" wobbles and growling basses.
Once you have a variety of basses you need to make sure their frequencies don't clash. Cut out the very low frequencies, and have a separate channel dedicated to sub bass. Making sure your basses flow together, and don't sound awkward when one bass transitions to another.
In terms of actually constructing a drop, make your basses play off of your drums. Make sure as your drop progresses the bass doesn't get off time with your drums. The whole idea of dubstep is for the drums and bass to work together and be groovy. Maybe have multiple drum patterns throughout the song, so your bass patterns can change along with them.
I'm sure someone else on this site is more qualified than I am, but I hope I helped!