If VLC media player is playing video but no sound playing, the probable cause is that you may have set it to mute at some point, and forgotten all about it.
Ọ bụrụ na VLC mgbasa ozi ọkpụkpọ na-akpọ video ma ọ dịghị ụda ebre, puru omume na-akpata bụ na ị nwere ike ka ọ ogbi na ụfọdụ ebe, ma chefuo ihe nile banyere ya.