meyda/dist/node/extractors/rms.js

Real-time feature extraction for the web audio api

'use strict';

function rms (_a) {
    var signal = _a.signal;
    // Keeping this bad runtime typecheck for consistency
    if (typeof signal !== "object") {
        throw new TypeError();
    }
    var rms = 0;
    for (var i = 0; i < signal.length; i++) {
        rms += Math.pow(signal[i], 2);
    }
    rms = rms / signal.length;
    rms = Math.sqrt(rms);
    return rms;
}

module.exports = rms;