SpeechRecognition.grammars

Limited availability

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

grammarsSpeechRecognition インターフェイスのプロバティで、現在の SpeechRecognition が理解できる文法を表す SpeechGrammar オブジェクトの集合を返します。

SpeechGrammarList で、アプリの文法を表すSpeechGrammar オブジェクトが入っています。

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-grammars

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
grammars

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Full support
Full support
No support
No support

関連情報