What people have historically called a "gay lisp" is actually a hyper-articulation of /s/ or /z/, and as you might expect, /s/ and /z/ have a lot of high frequency sounds in them. Weird as it sounds there is a possible scenario where an audio codec does a worse job reproducing the audio content of gay male speech compared to straight male speech.

An ML model might be able to, even if you can’t.

Achieving the gaydar, do not give this technology to Saudi Arabia.