If you are having audio issues, it is almost never a "driver" problem in the Windows sense—it’s usually a permissions issue or a hardware fault.
The audio kext does three critical jobs that most users never see: macbook audio driver
How do you know if it's a software driver issue versus a blown speaker? Look for these red flags: If you are having audio issues, it is
The volume icon in the menu bar is greyed out. Audio "Lag": Sound falls out of sync with video. If you are having audio issues