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21 lines
726 B
JavaScript
21 lines
726 B
JavaScript
if (typeof AudioContext !== 'undefined') {
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AudioContext.prototype.impulseResponse = function (duration) {
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const length = this.sampleRate * duration;
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const impulse = this.createBuffer(2, length, this.sampleRate);
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const IR = impulse.getChannelData(0);
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for (let i = 0; i < length; i++) IR[i] = (2 * Math.random() - 1) * Math.pow(1 - i / length, duration);
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return impulse;
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};
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AudioContext.prototype.createReverb = function (duration) {
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const convolver = this.createConvolver();
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convolver.setDuration = (d) => {
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convolver.buffer = this.impulseResponse(d);
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convolver.duration = duration;
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return convolver;
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};
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convolver.setDuration(duration);
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return convolver;
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};
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}
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