Voice Selection
Supports Windows Text To Speech, Google Cloud or Amazon Polly voices
By default, EDCoPilot will use your pre-installed Windows Text To Speech voices, which you can set in the Voice Settings panel. You can also add Windows TTS compatible voices from 3rd parties such as Cereproc.
In addition, EDCoPilot supports voices rendered by Google Cloud or Amazon Polly, which produce a more natural sounding voice. Note: Each has a free usage quota every month, before overage fees become billable.
You can switch between voices using the Voice Settings panel, or via VoiceAttack voice commands.

Voice Commands
General
"CoPilot volume <#> percent" will alter the volume of the CoPilot speech
"Speech OFF", "Mute CoPilot" , "Quiet please" or "Shut it" will turn off voice sound
"Speech ON" , "Unmute CoPilot", "Stop sulking" or "Talk to me" will turn voice sound back on
Windows TTS
"Switch to <voice name>" will change to the named Windows voice, e.g. "Switch To David"
"CoPilot voice rate <#>" will change the rate of speech, where # = 100 to 300 words per minute
Google Cloud
"Use Google voice" will change to the last used Google voice settings
"Save Google voice <#>" will save your current Google voice selection and settings to the assigned slot number, for future use.
"Load Google voice <#>" will load and use a previously saved voice selection.
Amazon Polly
"Use Amazon voice" will change to the last used Amazon voice settings
"Save Amazon voice <#>" will save your current Google voice selection and settings to the assigned slot number, for future use.
"Load Amazon voice <#>" will load and use a previously saved voice selection.