AAC

h1. AAC@IITM

Alternative and Augmentative Communication (AAC) is our effort to provide non-verbal individuals the ability to independently express their ideas. The platform being used is the BeagleBoard, revC. The final hardware will have

# Minimum 3-hr battery backup

# Software that works with a single-click 

# Access is through two buttons, which can be programmed either as left-click or left and right clicks

h2. Current *Urgent* Problems

# Need espeak and wxpythons package for the Angstrom distribution

# Need a minimal ubuntu distribution (defined package list) 

## with a kernel that recognizes keyboard input on GPIO

## scripts to ground two GPIO pins

# Need to understand amixer, and independently control two audio channels

h3. Open Problems

# Incorporate prediction into Hope (see e.g. Dasher)

# Local language version of Hope

# Need to finalize TTS, many possible solutions 

## Male voice exists. Need female voice compiled for flite using festivox http://www.speech.cs.cmu.edu/flite/doc/flite_toc.html

## flite_hts_engine has only female voice

## espeak needs Indian languages

# Improvements to I-Draw

# Mouse-like interface by dividing up the screen into sections and zooming

# Software to teach mathematics

# Scroll type access to other programs like audio/video players, openoffice, etc