Video plays on the TV but has no sound
Isolate the selected audio track and output route before re-encoding the picture.
Read the guide ↗Field guide / 02Remux or re-encode: choose a targeted TV playback fix
Understand which changes affect a container and which affect the encoded picture.
Read the guide ↗Field guide / 03USB, TV app or HDMI: map your playback path
Find which device actually opens and decodes the video before applying compatibility rules.
Read the guide ↗