Sound Problems
If you have sound problems playing through Media Center, please read the Getting Started topic on this wiki. It will help you set up audio on your machine.
Settings
Each audio output type has different settings. In Tools/Options/Audio, they can be set in the second section.
Some devices have problems switching sample rates. Some don't play high sample rates well. You can use MC's Output Settings in DSP Studio to force everything to a rate that works.
Some devices need special packaging. See the DAC Settings topic.
Some devices work more reliably with smaller or larger buffers.
Volume
MC has several volume options. Click on the speaker icon next to the volume slider to try them.
More
The thread called Weird and Wonderful has a list of problems caused by other software or hardware.