How do i enable 4 channel built-in microphone since its showing 1channel input (with all 4 channels merged...)? I tried safe mode but it doesn't resolve the issue either of the 4 channel input or the ambient noise reduction option.
Hi,
Go to Applications > Utilities > Audio MIDI Setup > Built-in Microphone > Input > Format and see if you can change it there to make it work.
What exactly is your mac model?
Where did you get the information about the mic being 4-channel?
If in doubt, go to the Apple menu and choose About this Mac. Tell us the model and year.
Mac model: iMac (24-inch, M1, 2021)
Chip Apple M1
I got the information of the mic being 4-channel here: Change the sound input settings on Mac - Apple Support (IN)
Here, it says:
Capture less background noise when using your computer’s built-in microphone: Select “Use ambient noise reduction”. This option does not appear if a 4-channel built-in microphone format is selected in Audio MIDI Setup, on Mac with Apple silicon or on Mac models with an Apple T2 chip.
Also, I have checked for 4 input openings of built in mic (2 on the top, 1 in the back, 1 in the front beside webcam) but it reads it as a single input
The way I understand it, it may be implied that this 4-channel microphone format may be available in some macs with Apple Silicon and in some macs with a T2 chip.
For instance, my mac has a T2 chip (it's a 2019 16" MBP), but it does not say anything (in Audio MIDI Setup or anywhere that I can find) about a 4-channel microphone option.
Maybe this does not exist in an M1 iMac; I can't find any information about this, one way or another.
navneet235 wrote:
So, how do i get access to the ambient noise reduction (since I want to turn it off)? If you know anything about it or any thread you may find please do share. Thanks.
If you don't have the the setting, you don't have the feature.There's nothing to turn off.
It didn't work. Although, what should be the recommended Format settings?
So, how do i get access to the ambient noise reduction (since I want to turn it off)? If you know anything about it or any thread you may find please do share. Thanks.
4 channel built-in microphone in Monterey
