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prettier

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This commit is contained in:
Aaron Gutierrez
2023-06-01 17:17:23 -07:00
parent b1937939b5
commit 6663445f9b
1 changed files with 22 additions and 21 deletions
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43
tuner.js
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@@ -12,7 +12,7 @@ const NOTE_NAMES = [
"F", "F",
"F#", "F#",
"G", "G",
"G#" "G#",
]; ];
// We don't care about fundamentals above 4kHz, so setting a lower sample rate // We don't care about fundamentals above 4kHz, so setting a lower sample rate
@@ -36,37 +36,38 @@ const setup = () => {
if (navigator.mediaDevices && navigator.mediaDevices.getUserMedia) { if (navigator.mediaDevices && navigator.mediaDevices.getUserMedia) {
navigator.mediaDevices navigator.mediaDevices
.getUserMedia({ .getUserMedia({
audio: true audio: true,
}) })
.then(handleStream, err => { .then(handleStream, (err) => {
console.error("Error calling getUserMedia", err); console.error("Error calling getUserMedia", err);
}) })
.then(aquireWakeLock); .then(aquireWakeLock);
} }
}; };
const aquireWakeLock = ({ interval, stream}) => { const aquireWakeLock = ({ interval, stream }) => {
if (navigator.wakeLock && navigator.wakeLock.request) { if (navigator.wakeLock && navigator.wakeLock.request) {
try { try {
navigator.wakeLock navigator.wakeLock.request("screen").then((wakeLock) =>
.request("screen") setTimeout(() => {
.then(wakeLock => setTimeout(() => {
clearInterval(interval); clearInterval(interval);
wakeLock.release(); wakeLock.release();
stream.getTracks().forEach(track => track.stop()); stream.getTracks().forEach((track) => track.stop());
dom_note.innerHTML = "Done"; dom_note.innerHTML = "Done";
dom_note.onclick = () => { window.location.reload() }; dom_note.onclick = () => {
window.location.reload();
};
dom_tune.innerHTML = ""; dom_tune.innerHTML = "";
dom_frequency.innerHTML = ""; dom_frequency.innerHTML = "";
}, TIMEOUT * 1000)); }, TIMEOUT * 1000)
);
} catch (err) {} } catch (err) {}
} }
}; };
const handleStream = stream => { const handleStream = (stream) => {
const audioContext = new AudioContext({ const audioContext = new AudioContext({
sampleRate: TARGET_SAMPLE_RATE sampleRate: TARGET_SAMPLE_RATE,
}); });
const analyser = audioContext.createAnalyser(); const analyser = audioContext.createAnalyser();
@@ -82,7 +83,7 @@ const handleStream = stream => {
const interval = setInterval(tune(analyser, data), 500); const interval = setInterval(tune(analyser, data), 500);
return { interval, stream}; return { interval, stream };
}; };
const tune = (analyser, data) => () => { const tune = (analyser, data) => () => {
@@ -95,15 +96,14 @@ const tune = (analyser, data) => () => {
let max = 0; let max = 0;
let maxBucket = -1; let maxBucket = -1;
data.forEach((value, bucket) => { data.forEach((value, bucket) => {
let j = 2; let j = 2;
let product = value; let product = value;
while (bucket > 1 && j*bucket < data.length && j < 8) { while (bucket > 1 && j * bucket < data.length && j < 8) {
product *= data[j*bucket]; product *= data[j * bucket];
j += 1; j += 1;
} }
const geoMean = Math.pow(product, 1 / (j-1)); const geoMean = Math.pow(product, 1 / (j - 1));
if (geoMean > max) { if (geoMean > max) {
max = geoMean; max = geoMean;
@@ -126,9 +126,10 @@ const tune = (analyser, data) => () => {
document.body.className = semitonesToClassname(semitones, margin); document.body.className = semitonesToClassname(semitones, margin);
}; };
const frequencyToSemitones = frequency => 12 * Math.log2(frequency / 440) + 69; const frequencyToSemitones = (frequency) =>
12 * Math.log2(frequency / 440) + 69;
const semitonesToNote = semitones => { const semitonesToNote = (semitones) => {
const rounded = Math.round(semitones - 69); const rounded = Math.round(semitones - 69);
const index = rounded >= 0 ? rounded % 12 : (12 + (rounded % 12)) % 12; const index = rounded >= 0 ? rounded % 12 : (12 + (rounded % 12)) % 12;