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var say = require("say")

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say v0.16.0

TTS (Text To Speech) Module for Node.js

Installing say.js

npm install say


// automatically pick platform
const say = require('say')

// or, override the platform
const Say = require('say').Say
const say = new Say('darwin' || 'win32' || 'linux')

// Use default system voice and speed

// Stop the text currently being spoken

// More complex example (with an OS X voice) and slow speed
say.speak("What's up, dog?", 'Alex', 0.5)

// Fire a callback once the text has completed being spoken
say.speak("What's up, dog?", 'Good News', 1.0, (err) => {
  if (err) {
    return console.error(err)

  console.log('Text has been spoken.')

// Export spoken audio to a WAV file
say.export("I'm sorry, Dave.", 'Cellos', 0.75, 'hal.wav', (err) => {
  if (err) {
    return console.error(err)

  console.log('Text has been saved to hal.wav.')



  • Speed: 1 = 100%, 0.5 = 50%, 2 = 200%, etc
say.speak(text, voice || null, speed || null, callback || null)

Export Audio:

  • MacOS / Windows Only
  • Speed: 1 = 100%, 0.5 = 50%, 2 = 200%, etc
say.export(text, voice || null, speed || null, filename, callback || null)

Stop Speaking:

say.stop(callback || null)

Get List of Installed Voice(s):


Feature Matrix

Unfortunately every feature isn't supported on every platform. PR's welcome!


macOS Notes

Voices in macOS are associated with different localities. To a list of voices and their localities run the following command:

say -v "?"

As an example, the default voice is Alex and the voice used by Siri is Samantha.

Windows Notes


Linux Notes

Linux support requires Festival. As far as I can tell there is no sane way to get a list of available voices. The only voice that seems to work is voice_kal_diphone, which seems to be the default anyway.

The .export() method is not available.

Try the following command to install Festival with a default voice:

sudo apt-get install festival festvox-kallpc16k


  • Mac OS X (comes with say)
  • Linux with Festival installed
  • Windows (comes with SAPI.SpVoice)
    • Needs to have Powershell installed and available in $PATH (see issue #75)


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