This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The SpeechGrammarList()
constructor creates a new SpeechGrammarList
object instance.
var myGrammarList = new SpeechGrammarList();
None.
In our simple Speech color changer example, we create a new SpeechRecognition
object instance using the SpeechRecognition()
constructor, create a new SpeechGrammarList
, add our grammar string to it using the SpeechGrammarList.addFromString
method, and set it to be the grammar that will be recognised by the SpeechRecognition
instance using the SpeechRecognition.grammars
property.
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;
Specification | Status | Comment |
---|---|---|
Web Speech API The definition of 'SpeechGrammarList' in that specification. | Draft |
Desktop | ||||||
---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
Basic support | 33
|
? | No | No | No | No |
Mobile | |||||||
---|---|---|---|---|---|---|---|
Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
Basic support | Yes
|
Yes
|
? | No | No | No | ? |
To use speech recognition in an app, you need to specify the following permissions in your manifest:
"permissions": { "audio-capture" : { "description" : "Audio capture" }, "speech-recognition" : { "description" : "Speech recognition" } }
You also need a privileged app, so you need to include this as well:
"type": "privileged"
© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/SpeechGrammarList/SpeechGrammarList