No sound on one website in Chrome? Check its sound permission

Start the clip yourself and check its speaker icon and volume slider. Then play a different clip on the same website. If only the original clip stays silent, try a clip that you already know has audio before changing permissions. Keep the same speakers or headphones for both tests.

Open the silent page directly and check the address before opening Site settings. If Sound is blocked, change it to Allow. Reload the original page and start playback again. For Chrome’s default, go to Settings → Privacy and security → Site settings → Additional content settings → Sound. A site-specific permission takes priority over that default.

For example, play the silent training video and then a known working audio clip on a different website in the same Chrome window. If both are silent, check the browser’s default sound setting and see whether another app can play through the same output. If only the training video is silent after you allow sound, use the site’s own player controls or report the specific video to the site.