I've tried new cables and restarting options. The audio output jack on my MacBook Pro is very crackly and noisy. If you listen closely you can hear different types of interference depending on what the hard drive is doing or other operations. For instance, I can hear certain types of noise that only happen when I use the trackpad.
Running Big Sur v11.1
MacBook Pro 15″, macOS 11.1
Hi there Phil Naccarato,
Thanks for reaching out to Apple Support Communities. We understand you’re hearing unexpected noise when using cables with your audio output port. We’ll be happy to help.
Let’s see if these steps help you set up those external audio devices: Set up audio devices on iMac (Mid 2014) and later.
If you need to adjust your sound output settings, this guide will show you how: Change the sound output settings on Mac. We hope this helps.
Best regards.
Audio output jack noise and interference
