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polly.js
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polly.js
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var polly = new AWS.Polly(
{region: "us-west-2",}
);
var params = {
OutputFormat: "mp3",
SampleRate: "16000",
TextType: "text",
VoiceId: "Joanna"
};
var audio = new Audio();
var isSpeaking = false;
var updateVoice = function(voiceId) {
params.VoiceId = voiceId;
};
var populateVoices = function(element, voices) {
for (var voice in voices) {
var opt = document.createElement("option");
opt.value = index;
opt.innerHtml = element;
}
};
var speakThoseWords = function(err, data) {
if (err) console.log(err);
else {
var url = URL.createObjectURL(new Blob([new Uint8Array(data.AudioStream).buffer]));
audio.src = url;
audio.play();
isSpeaking = true;
}
};
var speakListener = function(utterance, options, sendTtsEvent) {
sendTtsEvent({'type': 'start', 'charIndex': 0});
params.Text = utterance;
polly.synthesizeSpeech(params, speakThoseWords);
sendTtsEvent({'type': 'end', 'charIndex': utterance.length});
};
var stopListener = function() {
audio.pause();
isSpeaking = false;
};
chrome.ttsEngine.onSpeak.addListener(speakListener);
chrome.ttsEngine.onStop.addListener(stopListener);
chrome.tts.getVoices(function(voices) {console.log(voices);});