soundmanager

sm.js

soundManager.onready(function() {
    hyperlips = soundManager.createSound({
        id: 'hyperlips', 
        url: 'cathode_girls.mp3',
        autoPlay: true,
        volume: 50,
        whileplaying: function() {
            this.waveform = {points: [], total: 0};
            var points = this.waveform.points;
            for(var i = 0; i < 256; i++) {
                var bucket = Math.round(i / 2);
                var level = this.waveformData.left[i] / 2;
                this.waveform.total += Math.abs(level);
                points[bucket] = (typeof points[bucket] == 'undefined') ? level : points[bucket] + level;
            }
            this.waveform.total /= 256;
            this.waveform.delta = Math.abs(this.waveform.prior - this.waveform.total);
            this.waveform.prior = this.waveform.total;
        }
    });
      
});