36 lines
630 B
HTML
36 lines
630 B
HTML
<!DOCTYPE html>
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<script>
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var ac = new AudioContext();
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var runningPromise = new Promise(resolve => {
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ac.onstatechange = event => {
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if (ac.state == "running") {
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resolve();
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}
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};
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});
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var osc = ac.createOscillator();
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osc.connect(ac.destination);
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osc.start(0);
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osc.stop(osc.context.currentTime + 2.0);
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var suspendPromise;
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function suspendAC() {
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runningPromise.then(() => {
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suspendPromise = ac.suspend();
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});
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}
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var resumePromise;
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function resumeAC() {
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suspendPromise.then(() => {
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resumePromise = ac.resume();
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});
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}
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function closeAC() {
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resumePromise.then(() => {
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ac.close();
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});
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}
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</script>
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