Bird
voice compression
it can help you talk, you can sing, shout, scream, sigh, make animal imitations, beatbox, hum, moan, whine, yodel, sob, shriek, cheer and even mumble.
we have a voice box so we will be able to talk to one and other and if we didn't then there would be know talking to people on the phone.
dont talk, rest your voice, and drink honey in tea, or honey in hot squash.