>>2498475I agree but it's still not always a thing. Like nonas here say a lot of them have high pitched, soft, girly/young voices that makes people read them as younger and/or immature. That soft-spokeness is something I see fairly often in females, and sometimes in males too.
The monotone voice is just one type of autist voice, and imo it's from those who have difficulty with sound who are basically "tone deaf". So if you don't have those auditory issues you don't get it.
I've also met a lot of loud autists, they're the opposite of monotone and are instead all over the place in volume and intonation. They instead exaggerate a lot and come off as passionate, a bit obnoxious or nearly aggressive.
The best tell is simply how they break social norms when speaking. Interrupting, not matching the tone/volume of the other speaker, the insistence of subject, talking about controversial topics without getting that it is controversial or sensitive.