16 lines
790 B
JavaScript
16 lines
790 B
JavaScript
window.addEventListener("load", (event) => {
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for (const elt of document.getElementsByClassName("mt-sound-play-button")) {
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elt.addEventListener("click", (event) => {
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const audioCtx = new (window.AudioContext || window.webkitAudioContext)();
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for (const freq of event.target.getAttribute("data-sound-info").split(",")) {
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const oscillator = audioCtx.createOscillator();
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oscillator.type = "sine"; // waveform: sine, square, sawtooth, triangle
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oscillator.frequency.value = parseInt(freq); // Hz
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oscillator.connect(audioCtx.destination);
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oscillator.start();
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oscillator.stop(audioCtx.currentTime + 2); // stop after 1 second
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}
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});
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}
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});
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