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add sound effect before and after speech #90

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add sound effect before and after speech #90

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28 changes: 24 additions & 4 deletions src/useSpeechSynthesis.jsx
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Original file line number Diff line number Diff line change
Expand Up @@ -38,19 +38,39 @@ const useSpeechSynthesis = (props = {}) => {
}, []);

const speak = (args = {}) => {
const { voice = null, text = '', rate = 1, pitch = 1, volume = 1 } = args;
const { voice = null, text = '', rate = 1, pitch = 1, volume = 1, soundStart=null, soundEnd=null } = args;
if (!supported) return;
setSpeaking(true);
// Firefox won't repeat an utterance that has been
// spoken, so we need to create a new instance each time
const utterance = new window.SpeechSynthesisUtterance();
utterance.text = text;
utterance.voice = voice;
utterance.onend = handleEnd;
utterance.rate = rate;
utterance.pitch = pitch;
utterance.volume = volume;
window.speechSynthesis.speak(utterance);
// check if sound start exist
if(soundStart){
const audioStart = new Audio(soundStart);
utterance.onstart = () => {
audioStart.play();
window.speechSynthesis.pause();
audioStart.onended=function(){
window.speechSynthesis.resume();
}
}
}
// check if sound end exist
if(soundEnd){
const audioEnd = new Audio(soundEnd);
utterance.onend = () => {
handleEnd();
audioEnd.play();
}
} else {
utterance.onend = handleEnd;
}
window.speechSynthesis.speak(utterance);
};

const cancel = () => {
Expand All @@ -68,4 +88,4 @@ const useSpeechSynthesis = (props = {}) => {
};
};

export default useSpeechSynthesis;
export default useSpeechSynthesis;