basic timer. display mic volume

main
Matthew Huntington 2 years ago
parent 433f92efcc
commit 91177c3f2a

@ -1,3 +1,6 @@
let timerInterval = null;
let startTime = null;
navigator.mediaDevices.getUserMedia({ navigator.mediaDevices.getUserMedia({
audio: true audio: true
}).then((stream) => { }).then((stream) => {
@ -17,11 +20,22 @@ navigator.mediaDevices.getUserMedia({
analyser.getByteFrequencyData(array); analyser.getByteFrequencyData(array);
const arraySum = array.reduce((a, value) => a + value, 0); const arraySum = array.reduce((a, value) => a + value, 0);
const average = arraySum / array.length; const average = arraySum / array.length;
console.log(Math.round(average)); document.querySelector('#mic').innerHTML = Math.round(average);
// colorPids(average);
}, 1000) }, 1000)
}) })
.catch((err) => { .catch((err) => {
/* handle the error */
console.error(err); console.error(err);
}); });
const updateTimerDisplay = ()=>{
document.querySelector('#seconds').innerHTML = Math.floor((Date.now() - startTime)/1000)
}
document.querySelector('#start').addEventListener('click', ()=>{
startTime = Date.now();
timerInterval = window.setInterval(updateTimerDisplay,1000);
})
document.querySelector('#stop').addEventListener('click', ()=>{
window.clearInterval(timerInterval);
})

@ -3,9 +3,16 @@
<head> <head>
<meta charset="UTF-8"> <meta charset="UTF-8">
<title></title> <title></title>
<script src="app.js"></script> <script defer src="app.js"></script>
</head> </head>
<body> <body>
<dl>
<dt>Mic Level</dt>
<dd id="mic"></dd>
<dt>Seconds Recorded</dt>
<dd id="seconds"></dd>
</dl>
<button id="start">Start Timer</button>
<button id="stop">Stop Timer</button>
</body> </body>
</html> </html>

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