Rastatter, Michael PierreKalinowski, Joseph StanleyStuart, Andrew Michael2016-02-052016-02-051999-10-05U.S. Patent No. 5,961,443http://hdl.handle.net/10342/5161A device and method for ameliorating stuttering by providing an altered auditory feedback by employing a compact device configured for positioning in or adjacent the ear canal of an individual. The portable, self-contained device can be used on a "chronic" basis and includes a receiver for receiving auditory signals, an auditory delay and or frequency shift circuit, and a transmitter for transmitting the altered signal to the individual user.Patent