Disabling ambient noise reduction in macOS Catalina

I just stumbled onto a workaround: turn on voice control for the mic you're using in Accessibility settings. That will pop up a little window with a microphone - click "sleep" to put it to sleep. You may also want to disable all the commands if you don't actually want to use voice control. Automatic noise reduction appears to be disabled as long as voice control is on.

Hi amanmohamed_,

We're glad you've come to Apple Support Communities for help with your audio input quality and the ambient noise reduction feature. We're happy to point you in the right direction.

Here's a guide with some helpful information:

Change the sound input settings on Mac

It appears the option for ambient noise reduction isn't available if your Mac has 4-channel built-in microphone format selected in the Audio MIDI Setup application.

If you head into Audio MIDI Setup, then choose input, does it show that 4-channel audio is selected?

If so, what happens if you switch to a comparable 2-channel format?

We're here for you if you've got any questions.

Have a great day!

Hi amanmohamed_,

We encourage you to reach out again. We'd like to share a link with a list of worldwide phone numbers, so that you may ensure the phone number you're calling is the best for your area:

Contact Apple for support and service

We certainly welcome your suggestion, so we’d like to share a great link you can use to submit feedback about this audio behavior:

Product Feedback

Take care.

Hi amanmohamed_,

Thanks so much for checking and confirming that it's already configured to 2-channel audio. As the option is still not showing in Sounds, we'll point you in the right direction.

To investigate further, reach out to Apple Support using your preferred method of contact directly via our website here:

Get Support

Have a great day!

Brilliant, that works, thank you thank you !!!!