Detect audio activity of a MediaStream
npm install audio-activityDetect audio activity of a MediaStream. Only works in modern browsers that support the Web Audio API.
npm install audio-activity
See the live demo.
``javascript
var audioActivity = require('audio-activity');
navigator.getUserMedia({ audio: true, video: false },
function(stream) {
var audio = audioActivity(stream, function(level) {
// 'level' indicates the audio activity in percentage
console.log(level);
});
setTimeout(function() {
// Call the destroy method to cleanup resources
audio.destroy();
}, 5000);
},
function(e) {
console.error(e);
});
`
The callback function is optional, by omitting it it's still possible to read the activity level using the audio.get() method.
`javascript
requestAnimationFrame(function draw() {
var level = audio.get();
console.log(level);
requestAnimationFrame(draw);
});
``