On GotSound.org we are using wavesurfer.js to play sounds in a browser.
It's works only in modern browsers supporting Web Audio.
MediaElement fallback to support old browsers like Internet Explorer not always works.
You can find more information about browser supported Web Audio API here.
Please, consider to upgrade your browes to one of the following:
A Canadian Man rhymes intensely about one of his hangouts! The local store he goes to inspired this rap! I Love Sophie 1002390480238977781236763% I was bringing her back some mars bar roast fraps when I realized that there was a connection between aliens and cafes! Sophie has often said to Seascraper that in general all lifeforms even those that are out of this world can enjoy the metabolism boosting effects of caffeine laden drinks from another dimension! If you drink one of the new frappuccinos you will feel the calm of another world and you might get some energy back too!