I wanted to add that there are a ton of free synths that can help you do sci-fi effects also. Just search free vst synths and you’ll find a lot of options. For background to your audiobook “pads” are probably they type patches/sounds you may want to investigate. I’m not well versed on synths and patches, but I’m almost sure there are some sci-fi synth pad patches out there for some of the free instruments.
This reply was modified 1 week, 6 days ago by durable. Reason: corrected wrong information