(Some Macs show a red light next to the port to alert users.) If the port is blocked the Mac may be acting as if headphones are plugged in.

Check the headphone jack for debris: There may be something blocking the port, a bit of fluff or dust.

If there is just a cable plugged into one of those ports remove that too.

Check your ports: Disconnect anything that is plugged into your Mac-not just from the audio port as Thunderbolt, HDMI, and USB devices could be channeling the audio.If they are remove them and you should hear sound playing through the Mac’s internal speakers. Look for external devices: Check your headphone socket and make sure there are no earphones or speakers connected to the Mac or that your Mac has paired with a nearby set of AirPods or other earbuds.Turn your Mac off and on again: Even if you’re restarted recently, after changing some settings you can try restarting again to see if it solves the issue.The video may be muted by default, requiring you to choose to hear the sound. If you are watching a video in Safari and there is no sound you will find sound controls in the video window so you should be able to adjust it there. Check a different app: It is possible that the sound is playing in Music, but not in Safari, this may be because the sound is turned off in Safari.If you are using Big Sur or Monterey this will be in the Control Panel section of the menu bar. Visit Control Center: If this doesn’t work then try clicking on the Volume option in the Menu bar at the top of the screen.Check to make sure it isn’t all the way to the left. Check the app: Some apps, such as Music, have dedicated volume sliders.When you tap this an overlay should appear on your screen and you should see an indication that the volume is increasing. Turn up the volume: Make sure the volume isn’t turned down or muted by pressing the Volume Up button, usually located on the F12 key in the top-right of your keyboard.After you have pressed Play you should see the bar progressing even if you can’t hear the music. Open Music, click on Songs and select any track in your music collection.

Play something: To begin with, check if there is definitely no sound coming from your Mac by playing something in Music (Music replaced iTunes in macOS Catalina, so if you are in an older version of macOS, then you’ll want iTunes).

How to get my mac to read to me