1/ At lower-right corner, right click ur loudspeaker icon, Volume control options. All devices currently playing sound and the default communication device were enable.
2/ Start and in search bar, type "services" without quotation. Click services at top (the one with gears as icon).
Scroll down n check Windows Audio and Windows Audio Endpoint builder are both Automatic and Started. If not, double click to change the options.
3/At lower-right corner, right click ur loudspeaker icon, Playback devices.
Capture Playback tag or tell us what devices / options u have.
Speaker should have been highlighted. Check if u have HDMI (HD Audio HDMI Out).
If u do have HDMI option, select this and set it as the default. Shutdown ur PC and then connect it to a HDMI monitor, say, ur TV, via HDMI cable. turn on ur PC and check if sound play normal (and no, u don't need loud speaker as HDMI cable would take up the job and play it directly 2 ur TV).
"And liftoff, the final liftoff of Atlantis, shoulders of the space shuttle, America will continue the dream."
"Liftoff for the final launch of Endeavor. 'xpending our knowledge, 'xpending our lives in space."
"The final liftoff of Discovery, a tribute to the dedication, hard work and pride of America's space shuttle team."