Experimental
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.
Syntax
var myGrammarList = new SpeechGrammarList();
Parameters
None.
Examples
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 recognized 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;
Specifications
Specification | Status | Comment |
---|---|---|
Web Speech API The definition of 'SpeechGrammarList' in that specification. |
Draft |
Browser compatibility
BCD tables only load in the browser
Firefox OS permissions
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"