If your sound is distorted, please fix it by the following guide:
Make sure your speakers are correctly connected to your computer.
Many computers have three or more jacks that connect to a sound card or sound processor, including a microphone jack, line-in jack and line-out jack. Your speakers shoule be plugged into the line-out jack. If you are not sure which jack this is, try plugging your speakers into each of the jacks to see if any of them produce sound.
In some cases, you can work around the problem by disabling optional speaker effects that are known as enhancements. If disabling speaker effects solves the problem, you might need to update your audio driver.
You can use the free program downloaded from application's page at Informer.com. After download, install and launch,it intelligently finds the most suitable drivers for your computer and you can install it with one click.