I'm preparing to write an audio drama/audio play/whatever.
Anybody has some tips for meh?
Are you adapting a work into audio or doing an original piece? One of the key things you will need to do is make sure that either you have some damn good sound effects to clue the listener into what's going on, have the characters actually narrate their actions, or have a narrator. Personally, I'd avoid the narrator.
It's perfectly okay to have your characters narrate their actions ("I just need to stall him long enough to get my blaster..." *fwip!* "Ah-HAH!" *Blam blam blam*). In fact, you should get into the habit of having your characters talk to themselves, particularly if they are alone and are facing someone who is usually silent ("Wait... That sound! That's Boba Fett's ship! It looks like it's coming in for a landing... What's
he doing here? Uh-oh... I hope he doesn't see me behind this landing strut... Phew! He's gone!"). It may not be realistic dialogue, but you will need to take liberties with audio.
Ambient sound is a MUST! Give your sets atmosphere! I've drawn out overhead maps of sets, complete with character and speaker placement. I'd list what sounds I'd use, the reverb settings, and where in the speaker I would place the sounds. This gave my settings depth. The more reverb, the bigger the set. For a small cockpit ambiance, I went light on the reverb for my general ship engine drone, and added beeps, buttons, and switches at random intervals. It took me over an hour to put together the foley and edit a three-minute scene of Greedo in a cramped cockpit, but it was worth the effort.
For your script, you will want to indicate your sound effects and speaker placement. Keep in mind that no one can actually see what you're describing, so you'll need to take creative liberties with the dialogue. Have characters talk to themselves and narrate if you need to. Supply sound effects to further the imagery. And yourself makes the best litmus test. If you can't picture what you're trying to convey through what you hear, your listeners won't, either, and you'll need to revise that scene.