Try them each to make it see if the audio comes back.
Unplug any peripherals you’ve connected to your MacBook.
Headphones, speakers, and other devices can stop audio from coming out of your MacBook’s speakers.
Disconnect them to see if the sound comes back.
Along with hard-wired devices, you may also have speakers or headphones connected wirelessly.
Click theBluetoothicon at the top of your screen, and then toggle the switch tooff.
double-check your sound isn’t muted.
Check your sound preferences.
OpenSystem Preferences, and then go toSound>Output.
At the bottom of this window, see to it theMutecheckbox isnotchecked.
See if macOS needs an update.
The sound not working on your MacBook may be a bug in the current version of macOS.
OpenSystem Preferences, and then clickSoftware Update.
Before you update macOS, double-check youback up your MacBook.
The problem may be your MacBook didn’t initialize the sound drivers correctly when it booted up.
A restart can give it another chance to start everything properlyselectRestartfrom theApplemenu in the upper-left corner of your screen.
Like any other memory, it benefits from an occasional reset.
A normal restart should take care of it automatically.
If your MacBook’s sound still isn’t working, it may need servicing.
you might also use a third-party option like Audacity.