1975,Hilda B. Fisher,Improving voice and articulation, page 158:
Some individuals have overlooked the fact that at such low pitch their voices fade to inaudibility at the ends of sentences, or scrape down to vocal fry.
2004,Lloyd M. Hulit,Straight Talk on Stuttering, ISBN 0398075204, page 55:
It is perhaps easiest to see the superimposition of vocal fry, so we will begin with this behavior.
2011 December 9,Marissa Fessenden,“'Vocal Fry' Creeping Into U.S. Speech”, inScience:
Pop singers, such as Britney Spears, slip vocal fry into their music as a way to reach low notes and add style.
2014,Matthew Edwards,So You Want to Sing Rock 'n' Roll: A Guide for Professionals, ISBN 1442231947, page 112:
Vocal fry is safe as long as you do not do it too loudly or for too long.
Etymology
From the resemblance of the noise to the sound of hot fat sputtering in a skillet.