SpeechRecognition.grammars

Limited availability

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

grammars は SpeechRecognition 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。

値

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。

例

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

BCD tables only load in the browser

関連情報