This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
speaking read-only property of the
SpeechSynthesis interface is a
Boolean that returns
true if an utterance is currently in the process of being spoken — even if
SpeechSynthesis is in a
var amISpeaking = speechSynthesisInstance.speaking;
var synth = window.speechSynthesis; var utterance1 = new SpeechSynthesisUtterance('How about we say this now? This is quite a long sentence to say.'); var utterance2 = new SpeechSynthesisUtterance('We should say another sentence too, just to be on the safe side.'); synth.speak(utterance1); synth.speak(utterance2); var amISpeaking = synth.speaking; // will return true if utterance 1 or utterance 2 are currently being spoken
|Web Speech API
The definition of 'speaking' in that specification.
|Feature||Chrome||Edge||Firefox (Gecko)||Internet Explorer||Opera||Safari (WebKit)|
|Basic support||33||(Yes)||49 (49)||No support||?||7|
|Feature||Android||Edge||Chrome||Firefox Mobile (Gecko)||Firefox OS||IE Phone||Opera Mobile||Safari Mobile|
|Basic support||(Yes)||(Yes)||(Yes)||No support||2.0||No support||No support||7.1|