This is a sample of a ship talking to port control. It was created using text-to-speech software like acapela and editing the voices in audicity to sound like radio transmissions. Squelch and bleep sounds from the ptt buttons were added to the mixed clip.
I randomly selected presets from an old korg wavedrum, i think it is the world music edition, i recorded it into the mg and made the cuts with the envelope follower.