This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The SpeechGrammar
constructor of the SpeechGrammar
interface creates a new SpeechGrammar
object instance.
Syntax
var mySpeechGrammar = new SpeechGrammar();
Parameters
None.
Examples
var 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 ;' var recognition = new SpeechRecognition(); var speechRecognitionList = new SpeechGrammarList(); speechRecognitionList.addFromString(grammar, 1); recognition.grammars = speechRecognitionList; var newGrammar = new SpeechGrammar(); newGrammar.src = '#JSGF V1.0; grammar names; public <name> = chris | kirsty | mike;' speechRecognitionList[1] = newGrammar; // should add the new SpeechGrammar object to the list
Specifications
Specification | Status | Comment |
---|---|---|
Web Speech API The definition of 'SpeechGrammar()' in that specification. |
Draft |
Browser compatibility
Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|---|
Basic support | 25 webkit | No | 441 2 | No | 27 | No |
Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | Opera Android | iOS Safari | Samsung Internet |
---|---|---|---|---|---|---|---|
Basic support | No | 64 webkit | No | No | No | No | No |
1. Note that currently only the speech synthesis part is available in Firefox Desktop — the speech recognition part will be available soon, once the required internal permissions are sorted out.
2. From version 44: this feature is behind the media.webspeech.recognition.enable
preference (needs to be set to true
). To change preferences in Firefox, visit about:config.