![]() ![]() SpeechSynthesisVoice objects that would be returned by the Represents an event handler that will run when the list of The onvoiceschanged property of the SpeechSynthesis interface Information about the synthesis voices available on the device, startĪnd pause speech, and other commands besides. Interface for the speech service this can be used to retrieve The SpeechSynthesis interface of the Web Speech API is the controller The basic functionality is demonstrated in MDN's official live demo of: Populate a select element with those voices (after a particular page loads).Get a list of voices available on my device.I had to do my own research for this to make sure I understood it properly, so just sharing (feel free to edit). On Mac Chrome you get en-GB Daniel besides en-GB Google UK English Female and n-GB Google UK English Male This works fine on Chrome for MAC, Linux(Ubuntu), Windows and AndroidĪndroid has non-standard en_GB wile others have en-GB as language codeĪlso you will see that same language(lang) has multiple names Msg.voice = voices // Note: some voices don't support altering paramsĬonsole.log('Finished in ' + event.elapsedTime + ' seconds.') Msg.lang = document.getElementById("lang").value //'hi-IN' ĭtltxt+=voices.lang+' '+voices.name+'\n' Msg.text = document.getElementById("sampletext").value Msg.volume = document.getElementById("volume").value // 0 to 1 Msg.pitch = document.getElementById("pitch").value //0 to 2 Msg.rate = document.getElementById("rate").value // 0.1 to 10 Var msg = new SpeechSynthesisUtterance() Var voices = speechSynthesis.getVoices() SetInterval solution by Salman Oskooi was perfectĭtlarea=document.getElementById("details") Voices = () Ĭonst allVoicesObtained = new Promise(function(resolve, reject) ) to say something. For example, following code shows two empty arrays in console if you run it for first time: // First speechSynthesis call You need to call it twice! But also, you need to wait and let it load before second call on window.speechSynthesis. It seems window.speechSynthesis needs more time to load after first call. ![]() from ready function, for first click it shows empty list in console. It seems Chrome loads window.speechSynthesis after the page load! My question was: why does () return empty array, after page is loaded and onready function is triggered? As you can see if you click on the link, same function returns an array of available voices of Chrome by onclick triger? I was testing the new features in Web Speech API, then I got to this problem in my code: How can you make sure it will load speechSynthesis, on page load?.Now, the question is if you want to access window.speechSynthesis on page load: Since it might be a bug in beta version, I gave up on "Why" questions. It returns empty on page load but works afterward. Note that the first call on onload still doesn't work properly. If you add onload event to call this function ( ), then you can get correct result on first click. In second click you will get the expected list. Following HTML shows empty array in console on first click: Ĭonsole.log(()) ![]()
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