A speech-to-symbol app for supporting communication partner to model and improve vocabulary

In order to meet the communication needs of individuals who use Augmentative and Alternative Communication (AAC) devices, communication partners are often responsible for the programming of the AAC devices. However, the prolonged learning time and operational demands of AAC devices are often barriers to an efficient use of time during a therapy session. We developed a prototype app for iPad, called Speech-to-Symbol that decreases the programming time by finding pictures stored in the app using speech-to-text technology. We compared our solution to the TalkTablet app during AAC sessions with children with different communication disabilities. The aims of this study were 1) to compare the time to program both apps, 2) to identify the type of vocabulary used, and 3) to assess the usability of the two apps. Results showed that the reduced operational demands of our Speech-to-Symbols app allow communication partners to expose children to a larger and more diverse vocabulary. In addition, the communication partners gave our Speech-to-Symbols app a higher usability rating. Implications for clinical and educational settings and directions for future research are also discussed.