The MathTalk add-on for Scientific Notebook, created by Metroplex Voice Computing, provides great versatility. MathTalk provides voice input for Scientific Notebook, so that you can enter even the most complex mathematics and compute with voice commands. You can use voice input to complement the keyboard and the mouse to speed the entry of text and mathematics, or you can use it to replace the keyboard and the mouse. Click here for a demonstration of the system.
Used with the Duxbury braille output for Scientific Notebook, the MathTalk add-on provides dramatic new power for visually impaired individuals. Neither MathTalk nor Duxbury provides voice output of mathematics, so blind individuals will still need some assistance.
MathTalk/Scientific Notebook includes Scientific Notebook and a 100-page manual (requires Dragon Naturally Speaking, not included). You can purchase MathTalk through Metroplex Voice Computing.