This is an 18 year-old man demonstrating delayed auditory feedback (DAF) using a small, inexpensive pocket sized device. While DAF does not completely eliminate stuttering behaviors, it often reduces both primary and secondary characteristics of the disorder. There may be...

This video is an example of scaled intonation as opposed to two-step inflection. Here, laryngectomee Bo Mayo demonstrates Mary Had A Little Lamb using a TruTone artificial larynx. Dynamic intonation is controlled by a pressure sensitive button on the side...