The following article guides you on the most effective ways to fix sound issues on your Macbook.

Guide to Fixing Sound Issues on Macbook
Check Volume & Headphones Settings
When your Macbook experiences sound loss, the first step is to thoroughly check the Volume & Headphones settings on your device to ensure sound is not muted or accidentally connected to a Bluetooth device.

Checking Sound Settings
Step 1: Open the Apple menu at the top-left corner of the screen > Click on System Preferences > Select Sound.
Step 2: In the Sound interface, choose Output > Macbook Pro Speakers (this article assumes the use of a Macbook Pro) > Check the Output volume slider to see if it's at a low level; if so, you won't hear sound from your device.
Reset NVRAM/PRAM Settings
It's highly likely that your Macbook lost sound after a system update. Therefore, you should reset the NVRAM/PRAM settings.
Step 1: Go to the Apple menu, select Shut Down > Restart using the power button.
Step 2: Once the machine finishes booting, press the Command + Option + P + R key combination until your Macbook restarts again.

Software Update
If your Macbook has lost sound, try checking if the machine has applied the latest software version.
Step 1: Go to the Apple menu on your Mac > Choose About This Mac.
Step 2: Finally, select Software Update to check for your machine's updates.
Check Input Devices
The reason for a Macbook's sound loss could be due to conflicts between the microphone and connected input devices.
Step 1: To check, first go to the Apple menu > Choose System Preferences > Sound.
Step 2: In the Sound interface, select Input > Check the Input volume slider's position.
Third-party Software Conflicts
In some cases, Macbook sound loss occurs due to conflicts between third-party software. This is especially common with audio and video editing software.
Step 1:Apple menuSystem Preferences Sound
Step 2: In the Sound interface, select Output > Under Select a device for sound output, check if the output device is suitable for the software in use.
Conclusion on Fixing Macbook Sound Issues
Thus, I've just guided you on the most effective ways to fix Macbook sound loss. If you've tried the methods mentioned in this article but your device still faces this issue, consider bringing your Macbook to the nearest service center. Hopefully, this Macbook usage trick article will be helpful to you. Wish you success.
- Explore more: Laptop Tricks, Windows Tricks.
