Background noise during an iPhone 14 call is best handled by improving what your microphone sends, not by looking for an old universal “Phone Noise Cancellation” switch. On supported calls, Voice Isolation can prioritize your voice and reduce surrounding sound picked up by the microphone.
Use Voice Isolation During a Call
Start or answer a supported call. Open Control Center while the call is active, find the microphone or audio-mode control shown for the call, and choose Voice Isolation when it is available. The exact label and placement can vary with the iOS version and calling app.
Voice Isolation is designed to emphasize your voice and reduce competing environmental sound sent through the microphone. It does not make the room silent for you, and it is not available in every app or calling situation.
Move Away from the Noise Source
Microphone processing has limits. Wind, loud music, traffic, fans, and people speaking close to the phone can still overwhelm the microphone. Move to a quieter location, close a window, or increase the distance between the iPhone and the noise source when possible.
Check the Microphones and Case
Make sure a case, screen protector, dirt, or debris is not blocking a microphone opening. Remove the case temporarily if call quality suddenly became muffled or noisy. Clean the exterior openings gently without pushing objects into them.
Test Whether the Problem Is Your Microphone
Record a short Voice Memo and a short video with the front and rear cameras, then listen to them. If recordings sound distorted or unusually noisy in multiple apps and locations, the problem may be hardware rather than a call setting.
What About Phone Noise Cancellation?
Older instructions often point to a Phone Noise Cancellation accessibility setting. That control should not be treated as a general background-noise remover for modern iPhone calls, and it does not function as a universal filter for recordings. Voice Isolation is the more relevant current call-microphone feature when supported.
Other Ways to Improve Call Quality
- Use well-fitting AirPods or another headset with a microphone when the environment is difficult.
- Check the cellular or Wi-Fi connection if audio is breaking up rather than merely noisy.
- Restart the iPhone if microphone behavior changed unexpectedly.
- Install current iOS updates when practical.
- Test another calling app to see whether the issue is app-specific.
Frequently Asked Questions
Does Voice Isolation work on every phone call?
No. Availability depends on the iPhone, iOS version, call type, and app.
Will Voice Isolation remove all background noise?
No. It can reduce competing sound, but very loud or nearby noise may still be heard.
Does it change what I hear?
Its purpose is primarily to change microphone processing—what the other person receives—not to create headphone-style noise cancellation for you.
Summary
For background noise being transmitted during calls, try Voice Isolation first, then improve the physical environment and test the microphones. Avoid relying on old Phone Noise Cancellation instructions as a universal solution.
Matthew Roberts created this site to help his friends and family with questions that they might have about how to change the settings on their iPhones. It now serves as an archive of iPhone how-to guides to help anyone that stumbles upon this website.