SpeechRecognitionAlternative: confidence-Eigenschaft

Limited availability

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

Die confidence schreibgeschützte Eigenschaft des SpeechRecognitionResult-Interfaces gibt eine numerische Schätzung zurück, wie sicher das Spracherkennungssystem ist, dass die Erkennung korrekt ist.

Hinweis: Mozillas Implementierung von confidence befindet sich noch in Arbeit — momentan scheint es immer 1 zurückzugeben.

Wert

Eine Zahl zwischen 0 und 1.

Beispiele

Dieser Code ist ein Auszug aus unserem Sprachfarbwechsler-Beispiel.

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

Spezifikationen

Specification
Web Speech API
# dom-speechrecognitionalternative-confidence

Browser-Kompatibilität

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
confidence

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
No support
No support

Siehe auch