User profile for user: swarmaero_sebastian
swarmaero_sebastian Author
User level: Level 1
6 points

MacBook Pro microphone does not work after sleep or hibernate mode

Hi Apple Community,


After upgrading to macOS 15.5 (build 24F74), I'm encountering a persistent issue with my MacBook Pro’s internal microphone. Here's a summary of the behavior:


Issue Summary

Model: MacBook Pro 16-inch (2021), Apple M1 Pro


macOS Version: 15.5 (24F74)


Repro Steps:


Use the laptop normally—microphone works fine.


Close the lid or allow the system to sleep.


On wake, the microphone only outputs a constant high-pitched screeching/static noise.


Issue affects built-in apps (Voice Memos) and third-party apps (Microsoft Teams).


Reboot resolves the issue—until the laptop sleeps again.


Troubleshooting Performed

Apple Store diagnostics ran clean — no hardware issues detected.


Microphone worked immediately after rebooting post-diagnostics at the Genius Bar.


Reproduced again the next day after waking from sleep (no reboot in between).


Issue recurs regardless of whether the laptop is plugged in or on battery.


Verified in multiple environments (home, office, phone booth) — not tied to external peripherals.


No third-party audio drivers or unusual software installed.


Temporary Workaround

A reboot reliably restores microphone functionality.


Request for Help

This seems to be an OS-level bug affecting microphone behavior post-sleep/hibernate. Has anyone else encountered this? Are there any permanent workarounds or NVRAM/SMC-like resets for Apple Silicon that might help?


Thanks,

Sebastian



[Re-Titled by Moderator]

Original Title: Apple Microphone does not Work after Sleep/Hibernate



MacBook Pro 16″, macOS 14.1

Posted on Jun 3, 2025 8:23 AM

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User profile for user: TaraPaloAlto
TaraPaloAlto
User level: Level 1
18 points

Posted on Jun 4, 2025 6:56 AM

Hi,


I'm experiencing the exact same issue on my MacBook Pro 16-inch (2021) with the M1 Pro chip, running macOS 15.5 (build 24F74).


Just like described:


  • The internal microphone works perfectly after a fresh restart.
  • But after the machine goes to sleep and wakes up, the microphone only produces static or screeching noise, regardless of the app (Voice Memos, Zoom, Teams, etc.).


I've also confirmed:



  • No unusual audio software or drivers installed.
  • Microphone permissions are correctly set.
  • Apple Diagnostics shows no hardware problems.


It definitely seems like a macOS-level bug introduced in 15.5. I’m hoping Apple acknowledges and resolves this soon, as it’s affecting daily work and meetings.


Let me know if you (or anyone else here) finds a workaround that doesn't involve rebooting!



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User profile for user: TaraPaloAlto
TaraPaloAlto
User level: Level 1
18 points

Jun 4, 2025 6:56 AM in response to swarmaero_sebastian

Hi,


I'm experiencing the exact same issue on my MacBook Pro 16-inch (2021) with the M1 Pro chip, running macOS 15.5 (build 24F74).


Just like described:


  • The internal microphone works perfectly after a fresh restart.
  • But after the machine goes to sleep and wakes up, the microphone only produces static or screeching noise, regardless of the app (Voice Memos, Zoom, Teams, etc.).


I've also confirmed:



  • No unusual audio software or drivers installed.
  • Microphone permissions are correctly set.
  • Apple Diagnostics shows no hardware problems.


It definitely seems like a macOS-level bug introduced in 15.5. I’m hoping Apple acknowledges and resolves this soon, as it’s affecting daily work and meetings.


Let me know if you (or anyone else here) finds a workaround that doesn't involve rebooting!



Reply
User profile for user: GodspeII
GodspeII
User level: Level 1
13 points

Jun 11, 2025 10:47 AM in response to swarmaero_sebastian

I'm no expert, however, have you considered the possibility of physical damage to the Microphone's flap retainers which may make the microphone's ribbon cable unstable in place? or perhaps there's pure physical damage to the ribbon cable itself?


sorry that I don't have more value to provide to help diagnose this. :(

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User profile for user: swarmaero_sebastian
swarmaero_sebastian Author
User level: Level 1
6 points

Jun 11, 2025 12:59 PM in response to GodspeII

Computer already went into Apple Genius Bar, no physical damage they reported. We were able to replicate the issue, but no fix was given to permanently resolve. Also, it is consistent with the behaviors all of us are posting about; a hardware problem would either be intermittent, not resolved consistently with a software fix (reboot), etc.

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MacBook Pro microphone does not work after sleep or hibernate mode

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