SpeechGrammar
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The SpeechGrammar
interface of the Web Speech API represents a set of words or patterns of words that we want the recognition service to recognize.
Grammar is defined using JSpeech Grammar Format (JSGF.) Other formats may also be supported in the future.
Constructor
SpeechGrammar()
Non-standard Experimental-
Creates a new
SpeechGrammar
object.
Instance properties
SpeechGrammar.src
Experimental-
Sets and returns a string containing the grammar from within in the
SpeechGrammar
object instance. SpeechGrammar.weight
Optional Experimental-
Sets and returns the weight of the
SpeechGrammar
object.
Examples
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;
console.log(speechRecognitionList[0].src); // should return the same as the contents of the grammar variable
console.log(speechRecognitionList[0].weight); // should return 1 - the same as the weight set in line 4.
Specifications
Specification |
---|
Web Speech API # speechreco-speechgrammar |
Browser compatibility
BCD tables only load in the browser