In this step-by-step guide, we will show you how to enable Wide Spectrum Audio in FaceTime on your Apple Mac device.
Step 1: On your Apple Mac device, open the FaceTime application.
Step 2: When the app opens, initiate a video or audio call to whomever you want to contact.
Step 3: After the call gets connected, click the Control Center icon on the top-right corner of the menu bar.

Step 4: Click “Mic Mode” and then select “Wide Spectrum” mode from the options.

That’s it. If you have followed the above-mentioned steps, then you have successfully enabled the Wide Spectrum Audio feature on your macOS device.
If you want to disable the Wide Spectrum and want to enable Standard or Voice Isolation mode, then repeat the above steps and choose one of the different options from the Mic Mode