internal speakers not working

Try connecting headphones or external speakers using the headphone jack. Do you hear audio through the headphones or external speakers? If not, then you may have a software issue or configuration issue. On the "Output" tab of the Sound System Preferences, is there a drop down list box where you can choose different audio devices? If so, select "internal speakers". It is easy to over look this drop down list box since it is a relatively new way of selecting the devices.

If there is no "Internal" option, then Play some audio. While the audio is playing look into the headphone jack. If you see a red light, then most likely the headphone jack is bad which is common on older model Macs. Usually one of the spring metal contacts becomes bent and shorts out against the grounded case of the headphone jack which makes the computer think headphones are connected. Sometimes this can be fixed by bending the spring metal contact away from the casing of the jack. With newer model Macs, Apple uses a different contact mechanism (ball bearings) which does not have this issue. I honestly don't recall which one a 2014 laptop uses.

Of course, if you have some third party audio (or perhaps even some video) software installed, they may make system modifications which may affect the options displayed. You could try booting into Safe Mode to see if that makes any difference. And you can try creating & using a new macOS user account (create the account, log out of the current user, then log into the new user account). Does the new user account have the same issue? If not, then the issue is localized to your main user account.

It never hurts to try a PRAM Reset (hold the reset for at least three chimes...assuming the chimes can be heard, otherwise hold it for a full minute).

You can also try running the Apple Diagnostics....I know some of them will perform an audio test.

sastryj Said:

"internal speakers not working: I have a macbook pro 2014, Big Sur OS. The sound is not coming out. The option of selecting the internal speakers is not even available (when I go to Sound options0"

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Reinstall the macOS:

Seems the drivers are corrupt, or have gone missing, somehow. So, reinstall the macOS. System files will be put back to where they should be, and damaged system files will be replaced with clean ones.

In Depth:

Reinstall the macOS:

Go Here: How to reinstall macOS from macOS Recovery - Apple Support. Important: Be certain to create a backup of your Mac prior to all of this. That way, you can have something to restore from the Mac from, should anything go wrong with the reinstall. Once reinstalled, try this once more.

sastryj Said:

"internal speakers not working: thank you Trying now“

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You are welcome. Any success?