Why is my IrisVision no longer speaking?

Voice prompts may be turned off or the volume is off. Follow these steps:

1. Double tap the touchpad. 
2. When you hear a beep and see the yellow microphone on the screen, the IrisVision is listening for your command. Say “Enable voice prompts”.
3. If you still do not hear the IrisVision speak, double tap again.
4. Say “Max volume”. This sets the volume to the highest level.