Distortion may occur if you adjust your audio volume too high, resulting in 'clipping'. You will be able to see the potential for this issue on the visual audio when adjusting the volume slider. If you see white appear above the blue visual audio you may run into the issue of sound distortion.
Here's what that would look like:
As shown, the 'clipping' will typically occur when the volume has been adjusted to its highest setting. To prevent audio distortion, when adjusting audio volume, do not raise the volume to the point where any white appears above the visual audio.