Quick answer
Audio problems are usually fixed by switching the audio track, turning off audio passthrough, or changing the player's decoder. Some channels offer multiple audio tracks or languages.
What you might see
- Video but no sound
- Wrong language
- Audio out of sync with video
Likely causes
- Unsupported audio format (e.g. AC3/Dolby) on the device
- Passthrough enabled to a soundbar that can't decode it
- Wrong audio track selected
Step-by-step fixes
- Change the audio track. Open the player's audio menu during playback and pick another track.
- Disable passthrough. Turn off audio passthrough in the player, or set device audio output to PCM/Stereo.
- Switch decoder. Toggle hardware/software decoding in the player's settings.
- Adjust sync. Many players have an audio delay option to fix lip-sync.
Check it worked
Test on two or three channels.
Still not fixed?
If one channel has no audio on all devices, report it to support.