say

Installing say.js

npm install say

Usage - Mac OS voices

Speed is based on the average number of words to be spoken per minute.

var say = require('say');

// use default voice in System Preferences
say.speak('Hello!');

// no callback, fire and forget
say.speak('whats up, dog?', 'Alex', 20);

// output some text to the console as the callback
say.speak('whats up, dog?', 'Good News', undefined, function(error) {
  if (error) {
    return console.log(error);
  }

  console.log('text to speech complete');
});

Usage - Windows

Voice parameter is not yet available. Used whatever default system voice is set, ignoring voice parameter. Speed parameter is not yet available.

Usage - Linux

Linux support involves the use of Festival, which uses decidedly less friendly names for its voices. Voices for Festival sometimes need to be installed separately - you can check which voices are available by starting up Festival in interactive mode, typing (voice_, and pressing TAB. Then take the name of the voice you'd like to try, minus the parentheses, and pass it in to say.js.

Speed is a percent based upon the normal rate, so 50 is 50%, 120 is 120%, etc.

Try the following commad to install Festival as well as a default voice:

sudo apt-get install festival festvox-kallpc16k

Available Voices on OS X

Women

• Agnes
• Kathy
• Princess
• Vicki
• Victoria

Men

• Albert
• Alex
• Bruce
• Fred
• Junior
• Ralph

Others

• Bad News
• Bahh
• Bells
• Boing
• Bubbles
• Cellos
• Deranged
• Good News
• Hysterical
• Pipe Organ
• Trinoids
• Whisper
• Zarvox

Requirements

• Mac OS (comes with say)
• Linux with Festival installed
• Windows (comes with SAPI.SpVoice)