((window, undefined) => {
    if (window.AnalyserNode && !window.AnalyserNode.prototype.getFloatTimeDomainData) {
        var uint8 = new Uint8Array(2048);
        window.AnalyserNode.prototype.getFloatTimeDomainData = function (array) {
            this.getByteTimeDomainData(uint8);
            for (var i = 0, imax = array.length; i < imax; i++) {
                array[i] = (uint8[i] - 128) * 0.0078125;
            }
        };
    }
})(window);