SpeechRecognitionAlternative

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

TheSpeechRecognitionAlternative interface of theWeb Speech API represents a single word that has been recognized by the speech recognition service.

Instance properties

SpeechRecognitionAlternative.transcriptRead only: Returns a string containing the transcript of the recognized word.
SpeechRecognitionAlternative.confidenceRead 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 ourSpeech color changer example.

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