Just had it happen in the single player mission "Peebee: A Mysterious Remnant Signal", at the beginning when the observer opens the blocked path.
Can't save in those missions so quit the game and restarted from the beginning which, thankfully, wasn't very long ago.
Tried changing the various sound settings but nothing restarted it. Also tried switching from borderless to fullscreen mode, just in case.
Yup, kinda a known issue, that I and others suspect is related to the Frostbite engine more than the game coding. Since patching of this game has long since stopped, there is less than a 1% chance of this ever being fixed. The only thing we are left to do, is deal with it the best we can. Sad that the potential of this game was wasted and thrown away when they ran away from it after release, but it is what it is. It is a solid game with some annoying issues but can be fun to play when it works the way is should.
Anthem is in an even worse condition that this was left in. Same issues too. Including this one.
The people running BioWare are highly incompetent and it's showing. They'll be gone before the end of the year. Good riddance!