function readAsArrayBuffer() {
            if (!blobs[index]) {
                return concatenateBuffers();
            }
            var reader = new FileReader();
            reader.onload = function (event) {
                buffers.push(event.target.result);
                index++;
                readAsArrayBuffer();
            };
            reader.readAsArrayBuffer(blobs[index]);
        }
A more abstract-ish API.
@method
@memberof Whammy
@example
recorder = new Whammy().Video(0.8, 100);
@param {?number} speed - 0.8
@param {?number} quality - 100