For years, it has been known that when people who stutter speak the same material in unison with another speaker, they become more fluent. This is known as the 'Choral Speech Effect'. With SpeechEasy, this effect is achieved through a combination of Delayed Auditory Feedback (DAF) and Frequency Altered Feedback (FAF). Using DAF allows the client to hear his or her own voice with a slight delay, similar to an echo. FAF allows the client to hear his or her own voice with a shift in the pitch. The combination of DAF and FAF is referred to as Altered Auditory Feedback (AAF). The brain perceives this AAF as someone different speaking along with the person who stutters therefore creating the Choral Speech Effect.
