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How to improve sound quality on iPhone calls

iPhone SE 2022

Jason Cipriani/ZDNET

It’s weird how many really neat and useful features Apple builds into its operating systems, but then hides them. I use iOS, iPadOS, and macOS every day, and I’m still coming across new features regularly.

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This is a feature I had glimpsed several times, but it’s one of those things that only appear when certain conditions are met, and the rest of the time, you can’t get access to it. 

So, it sort of disappears out of mind until it resurfaces next time.

The other day I was playing around with a new release of Zoom, and I noticed the feature appear on my iPhone and decided to investigate further.

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The feature is called Voice Isolation, and it can be found under Mic Mode, which appears on the Control Center panel on your iPhone, iPad, or Mac.

It’s a great feature that I suspect most people never see.

Here’s how to find it!

How to use Mic Mode on iPhone

Before you get frustrated looking for the Voice Isolation or Wide Spectrum options in Mic Mode, it’s important to note that this feature is only supported on the following hardware:


  • Models from 2018 and later


  • iPhone SE (2nd generation and later)
  • iPhone XR
  • iPhone XS/XS Max
  • iPhone 11/11 Pro/11 Pro Max
  • iPhone 12/12 Pro/12 Pro Max/12 mini
  • iPhone 13/13 Pro/13 Pro Max/13 mini
  • iPhone 14/14 Plus/14 Pro/14 Pro Max


  • iPad mini (5th generation and later)
  • iPad (8th generation and later)
  • iPad Air (3rd generation and later)
  • iPad Pro 11-inch (all generations)
  • iPad Pro 12.9‑inch (3rd generation and later)

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Mic Mode lives in the Control Center panel.

As a reminder, you access Control Center on the iPhone and iPad by swiping down from the top right-hand corner of the screen and on the Mac by clicking the Control Center icon in the menu bar.

To add to the confusion, note that Mic Mode only appears when you’re running an app that supports the feature, such as FaceTime, Zoom, and so on. 

Not only do you need to be in an app that supports Mic Mode — FaceTime, Zoom, Facebook Messenger Video to name a few, you also have to be in an active call for the option to appear in Control Center. 

Just having the app open is not enough. 

Mic Mode has three settings:

  • Standard
  • Voice Isolation
  • Wide Spectrum

Standard is the default setting that Apple uses, a sort of middle ground where the mic picks up your voice but also some of the ambient sound.

Wide Spectrum makes the mic pick up everything, with an emphasis on catching the ambient sound too. This can allow for an immersive experience, but the quality and clarity of the voice can suffer.

The setting you want to pick for the best voice sound is Voice Isolation. This captures your voice and filters out as much of the ambient sound as possible.

It’s like having noise cancelation, but for your voice.

Tap on the one you want… and don’t worry, it won’t drop your call or anything!

I’ve been testing this, and it makes a huge difference in voice quality; and I recommend using Voice Isolation for those times when you want your voice to be the thing that stands out.

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