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web api interface

SpeechRecognitionAlternative

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The SpeechRecognitionAlternative interface of the Web Speech API represents a single word that has been recognized by the speech recognition service.

Instance properties

  • transcript Read only
    • : Returns a string containing the transcript of the recognized word.
  • confidence Read only
    • : Returns a numeric estimate between 0 and 1 of how confident the speech recognition system is that the recognition is correct.

Examples

This code is excerpted from our Speech color changer example.

recognition.onresult = (event) => {
  const color = event.results[0][0].transcript;
  diagnostic.textContent = `Result received: ${color}.`;
  bg.style.backgroundColor = color;
};

Specifications

SpecificationsStandards references are available on the canonical MDN page.

Browser compatibility

Browser compatibilityCompatibility data is available on the canonical MDN page.

See also