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TEXT-TO-SPEECH.md

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Text to Speech

WatsonSpeech.TextToSpeech

.synthesize({text, token||accessToken}) -> <audio>

Speaks the supplied text through an automatically-created <audio> element. Currently limited to text that can fit within a GET URL (this is particularly an issue on Internet Explorer before Windows 10 where the max length is around 1000 characters after the token is accounted for.)

Options:

  • text - the text to speak
  • url - the Watson Text to Speech API URL (defaults to https://api.us-south.text-to-speech.watson.cloud.ibm.com)
  • voice - the desired playback voice's name - see .getVoices(). Note that the voices are language-specific.
  • customization_id - GUID of a custom voice model - omit to use the voice with no customization.
  • autoPlay - set to false to prevent the audio from automatically playing

Relies on browser audio support: should work reliably in Chrome and Firefox on desktop and Android. Edge works with a little help. Safari and all iOS browsers do not seem to work yet.