function soundwaveInit() {

    var wrap = document.getElementById('soundwave');

    var windowWidth = (window.innerWidth > 1920 ? 1920 : window.innerWidth);
    var barWidth = 1;
    var barSpaceBetween = 2;
    var barCount = Math.round(windowWidth / (barWidth + barSpaceBetween));
    var nodeBar;

    wrap.style.width = windowWidth + 'px';
    wrap.style.left = '50%';
    wrap.style.marginLeft = -(windowWidth / 2) + 'px';

    for (var i = 0; i < barCount; i++) {

        if ( barCount > parseInt(windowWidth) / 2 ) {
            var animationDur = Math.floor((Math.random() * 10) + i / 1000) + 's';
            var animationDel = '0.' + Math.floor((Math.random() * 5) + i) + 's';
        } else {
            var animationDur = Math.floor((Math.random() * 5)) + 's';
            var animationDel = '0.' + Math.floor((Math.random() * 10)) + 's';
        }

        nodeBar = document.createElement("div");
        nodeBar.classList.add('bar');
        wrap.append(nodeBar);
        nodeBar.style.animationDuration = animationDur;
        nodeBar.style.animationDelay = animationDel;

    }

}