Here’s a study that I know which may answer your question why do gay guys talk funny. But a reminder, “funny” is not fun to use when referring to the way that gay people talk.
Two psychologists from Ohio State University conducted a study and discovered that 75% of the time people could determine which male speakers were gay by listening to them speak. In this study, however, instead of just having the subjects say whole words they each pronounced one letter of a word at a time. The first two letters were consonants and listeners could not determine the sexual preference of the speaker. The third letter was a vowel and that’s when listeners got really accurate. The conclusion is there is something about the way gay males pronounce their vowels that is different than the way heterosexual males say the same vowels.
Erik C. Tracey, the lead author of the study says they are not sure what that difference is but listeners seem to hear it and use that acoustical difference to make their judgement call.
Most gay males are not as blatant in their voice mannerisms as the media often presents them to us, yet it seems some slight difference in speech patterns maybe exist between heterosexual and homosexual males. Oddly enough, there is no empirical evidence that the same difference occurs between heterosexual females and lesbians.