speech synthesis - Can't Chrome's speechSynthesis work offline? -


i playing chrome's speechsynthesis

msg = new speechsynthesisutterance("some text"); msg.lang = "fr-fr" ; window.speechsynthesis.speak(msg);

when discovered strange issue : can't speak anymore if device offline. searched web did not find explanation.
can't work offline ?
(if know reason why needs online, please tell me in comments.)

speech synthesis voices either local on device or come remote speech synthesizer services. if voice remote service, browser able use if online , can connect it.

you don't environment on, google français voice used fr-fr on windows , os x remote service, doesn't work offline.

you can check voices available on device calling speechsynthesis.getvoices() , checking localservice property each voice.


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