Audio activates and deactivates intermittently

[nonchiedercilaparola]

hi, i'm on osx big sur 11.2.3 and from last week i have problem with audio for all video file while i have no issue with quicktime player. Video file is on mp4 and in particular the audio it activates and deactivates intermittently with pause of several minutes.

has some one same issue?

my version is vlc 3.0.17.3