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Electronic fluency devices can be divided into two basic categories: Computerized feedback devices provide feedback on the physiological control of respiration and phonation, including loudness, vocal intensity and breathing patterns. [1] Altered auditory feedback (AAF) devices alter the speech signal so that speakers hear their voices differently.
The AlterEgo was designed by Arnav Kapur, a graduate student at MIT, [4] and became public in 2018. The device was designed to help people with speech disabilities. [5] In 2018, the device was presented at the Conference on Intelligent User Interfaces where the research team reported a 92% median word accuracy rate.
The use of synthesized speech has increased due to the creation of software that takes advantage of the user's existing computers and smartphones. AAC apps like Spoken or Avaz are available on Android and iOS, providing a way to use a speech-generating device without having to visit a doctor's office or learn to use specialized machinery. In ...
The most common device is a handheld, battery-operated device pressed against the skin under the mandible which produces vibrations to allow speech; [1] other variations include a device similar to the "talk box" electronic music device, which delivers the basis of the speech sound via a tube placed in the mouth. [2]
SL35 Lightwriter, manufactured from 1994 - 2008 SL40 Lightwriter, manufactured from 2008. Lightwriters are a type of speech-generating device.The person who cannot speak types a message on the keyboard, and this message is displayed on two displays, one facing the user and a second outfacing display facing the communication partner or partners.
Delayed Auditory Feedback (DAF), also called delayed sidetone, is a type of altered auditory feedback that consists of extending the time between speech and auditory perception. [1] It can consist of a device that enables a user to speak into a microphone and then hear their voice in headphones a fraction of a second later.
A silent speech interface is a device that allows speech communication without using the sound made when people vocalize their speech sounds. It works by the computer identifying the phonemes that an individual pronounces from nonauditory sources of information about their speech movements .
DECtalk demo recording using the Perfect Paul and Uppity Ursula voices. DECtalk [4] was a speech synthesizer and text-to-speech technology developed by Digital Equipment Corporation in 1983, [1] based largely on the work of Dennis Klatt at MIT, whose source-filter algorithm was variously known as KlattTalk or MITalk.