Making some sounds for a mobile game and need to make a force field sound. Doing a little research on it, but thought I'd ask here. Any thoughts?
the few things that I run into when doing forcefields:
1) electrical forcefields are going to sound different than magical forcefields. Be sure to know what's causing the FF story-wise as you pull together your source elements.
2) forcefields tend to be tricky to mix unless you plan the frequency spectrums out carefully. Its very easy to get caught up making this full frequency drone that sounds amazing but that takes up all of the headroom in a mix and has to be turned way down before anyone can say anything through it. Don't make that mistake - have a very low frequency layer and a very high frequency layer with a fair amount of midrange left untouched or barely touched so that people can talk through it without it having to disappear.
3) consider a continuously moving layer. base that sound on whatever is continuously moving in the visual. things like stretched voices and wispy synth tones are nice touches on good forcefields.
4) don't go too layer crazy. build the 3 to 5 best sounding layers you can build, make sure they each serve a specific purpose in the sound and roll with those.
I agree with Rene don't go to layer crazy, but you may try an electrical hum and an impulse reverb. Set it to a short decay. When you set a convolution reverb to a short decay time, you're basically just affecting the sound. I'm not sure if you have a convolution reverb, but there's one in kontakt, guitar rig, built into logic, waves, a number of things. Definitely invest in one.