Vocal fry

VOH-kuhl freye n.

KEEP YOUR VOICE DOWN  A voice buzzes with vocal fry at the lowest registers, when the vocal folds in the throat vibrate irregularly (right).

R.C. Anderson et al/PLOS ONE 2014

A sizzling or rattling sound to speech. Also known as the pulse register phonation or glottal fry, vocal fry is a quality of the lowest registers of the human voice.