SpeechRecognition.maxAlternatives

Limited availability

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

maxAlternativesSpeechRecognition インターフェイスのプロパティで、 SpeechRecognitionResult ごとに提供される SpeechRecognitionAlternative の最大数を設定します。

既定値は 1 です

数値で、それぞれの結果に対して返される選択肢の最大値を表します。

下記のソースコードは Speech color changer を参考しています。

js
const grammar =
  "#JSGF V1.0; grammar colors; public <color> = aqua | azure | beige | bisque | black | blue | brown | chocolate | coral | crimson | cyan | fuchsia | ghostwhite | gold | goldenrod | gray | green | indigo | ivory | khaki | lavender | lime | linen | magenta | maroon | moccasin | navy | olive | orange | orchid | peru | pink | plum | purple | red | salmon | sienna | silver | snow | tan | teal | thistle | tomato | turquoise | violet | white | yellow ;";
const recognition = new SpeechRecognition();
const speechRecognitionList = new SpeechGrammarList();
speechRecognitionList.addFromString(grammar, 1);
recognition.grammars = speechRecognitionList;
//recognition.continuous = false;
recognition.lang = "en-US";
recognition.interimResults = false;
recognition.maxAlternatives = 1;

// ...

仕様書

Specification
Web Speech API
# dom-speechrecognition-maxalternatives

ブラウザーの互換性

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
maxAlternatives

Legend

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

Full support
Full support
No support
No support

関連情報