Recently, numerous assistive devices have been developed to treat stuttering from
a fluency-shaping perspective.Some devices, such as SpeechEasy, use frequency-altered
feedback (FAF ) as well as DAF to promote fluent speech (Foundas, Mock, Corey, Gol, &
Conture, 2013; Stuart, Kalinowski, Rastatter, Saltuklaroglu, & Dayalu, 2004).Other portable devices, such as the Edinborough Masker, permit clients to turn
on masking noise in anticipation of a disfluency (Block, Ingham, & Bench, 1996).In FAF , digital
technology allows speech signal frequencies to be adjusted without changing a client's
speech rate.With the
rapid advances in digital technology, other portable devices are likely to become available.The way in which these devices are incorporated into intervention should be determined
by the clinician on a case-by-case basis.