How to theoretically micspam in TF2.

[UniKitty]

1. Buy a pair of headphones.
2. Plug the headphone jack into the microphone jack instead.
3. Play sounds/music.
4. You will trick the computer into thinking that your music is supposed to be played through the microphone ingame.

[Soldier wants that scrumpy]

That username tho.
Anyways, pretty interesting, I always wondered how they micspam complete audio files.

[prplmsty]

download vac
configure it with wmp
voiceloopback 1 in dev console
have fun

[Sampo Sam]

Even morphvox pro can do this