Vocal fry is a voice quality that can be found in different varieties of English and is used by many different speakers. Nonetheless, it is considered an emerging female voice quality that impairs their work opportunities. The study of the perception of vocal fry has gained attention in the last few years. However, there is a lack of literature reviews comparing the speech evaluations done for vocal fry. In this article eight papers were compared and evaluated. This article not only demonstrated how important the choice of voice sample, evaluator and methodology is to the outcome of the findings but also references possible consequence the choice of an artificial vocal fry and free speech had on the perception of vocal fry in American English
