Voice output systems for users who spell what they want to say. Messages typed out by the user are read out loud. Many rate enhancements speed up conversations.
Record messages using human voice and play them back to speak. Symbols, pictures, letters, words, or objects on a static overlay represent the stored messages.
Portable tablet style computers running voice output communication software. The "dynamic" feature refers to the changing of pages on electronic displays.
PC software programs which are used for voice output, literacy development, and environmental control. Software can also be used on dynamic display devices or PC's.