Binary or droidspeak was the language commonly spoken by droids. It consisted of a set of beeps and whistles strung together into what resembled sentences. The C1 model utilized this form of communication, as did Industrial Automaton's R2 series astromech droid. While difficult, some organics such as Anakin Skywalker, Hera Syndulla and Rey were able to understand it.
The most common way for binary droids to communicate with organics was by writing, conveyed via another computer system. This is how astromech droid copilots would speak with the pilot of a starfighter.
All droids could understand binary. Without a computer system to write their words when it was necessary for organics to hear what a binary-only droid had to say, another droid, such as protocol droids or others capable of speaking a common language like Basic could translate for them. The astromech BB-8 spoke in 27th generation droidspeak, a compressed variant of standard droidspeak.
- Wrrk-wrrk. Weeeeeoop!—"I said counterclockwise!"
- Wah-wah. Wrry-wrry-nahwikoo!—"Let's get outta here!"
- Prrp-paree-paree pairreeoop?—"What could possibly go wrong?"
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