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add basic spectrum function

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This commit is contained in:
Felix Roos 2024-11-09 20:57:09 +01:00
parent ae335ac40c
commit 648fbf99fa
4 changed files with 61 additions and 2 deletions
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3
packages/superdough/superdough.mjs
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@ -270,11 +270,12 @@ function getReverb(orbit, duration, fade, lp, dim, ir) {
export let analysers = {},
analysersData = {};
export function getAnalyserById(id, fftSize = 1024) {
export function getAnalyserById(id, fftSize = 1024, smoothingTimeConstant = 0.5) {
if (!analysers[id]) {
// make sure this doesn't happen too often as it piles up garbage
const analyserNode = getAudioContext().createAnalyser();
analyserNode.fftSize = fftSize;
analyserNode.smoothingTimeConstant = smoothingTimeConstant;
// getDestination().connect(analyserNode);
analysers[id] = analyserNode;
analysersData[id] = new Float32Array(analysers[id].frequencyBinCount);