Add a method for getting a list of voices

[tlhunter]

Different voices will be available depending on platform.

Say:

say -v '?'

Espeak:

espeak --voices

[tlhunter]

Unfortunately Festival is a very painful tool and doesn't provide a way to access voices.

[jimbuck]

For Windows this is pretty simple (can be run in the same way the current speak command works):

Add-Type -AssemblyName System.speech;
$speak = New-Object System.Speech.Synthesis.SpeechSynthesizer;
$speak.GetInstalledVoices() | % {$_.VoiceInfo.Name}

[hasibweb]

How many voices are available by default?