SpeechRecognitionAlternative.transcript

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The transcript read-only property of the SpeechRecognitionResult interface returns a string containing the transcript of the recognized word(s).

For continuous recognition, leading or trailing whitespace will be included where necessary so that concatenation of consecutive SpeechRecognitionResults produces a proper transcript of the session.

Syntax

var myTranscript = speechRecognitionAlternativeInstance.transcript;

Returns

A DOMString.

Examples

This code is excerpted from our Speech color changer example.

recognition.onresult = function(event) {
  // The SpeechRecognitionEvent results property returns a SpeechRecognitionResultList object
  // The SpeechRecognitionResultList object contains SpeechRecognitionResult objects.
  // It has a getter so it can be accessed like an array
  // The first [0] returns the SpeechRecognitionResult at position 0.
  // Each SpeechRecognitionResult object contains SpeechRecognitionAlternative objects
  // that contain individual results.
  // These also have getters so they can be accessed like arrays.
  // The second [0] returns the SpeechRecognitionAlternative at position 0.
  // We then return the transcript property of the SpeechRecognitionAlternative object
  var color = event.results[0][0].transcript;
  diagnostic.textContent = 'Result received: ' + color + '.';
  bg.style.backgroundColor = color;
}

Specifications

Specification
Web Speech API # dom-speechrecognitionalternative-transcript

Browser compatibility

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
`transcript`	33	≤79	No	No	No	14.1	Yes	Yes	No	No	14.5	Yes