What I'm seeing in the logs at the moment when the sound starts crackling are the same errors that the aforementioned discussion thread cited:



2025-11-21 13:12:56.768900-0800 0x43fd47   Default     0x0                  64268  0    zoom.us: (AudioSession) [com.apple.coreaudio:as_client] SessionCore_macOS_Legacy.mm:124   Sent updated IOState to server: [1,
1]. BT device UIDS: {(
)}
2025-11-21 13:12:56.768911-0800 0x43fd47   Default     0x0                  64268  0    zoom.us: (AudioSession) [com.apple.coreaudio:as_client] SessionCore_macOS_Legacy.mm:167   <-- setPlayState Server update was r
equired.
2025-11-21 13:12:56.771625-0800 0x140a     Error       0x0                  657    0    coreaudiod: (CoreAudio) [com.apple.coreaudio:AMCP]         HALS_OverloadMessage.cpp:242   HALS_OverloadMessage: Overload possibly due to HAL client proc exceeding io cycle budget.
2025-11-21 13:12:56.773443-0800 0x140a     Default     0x0                  657    0    coreaudiod: (CoreAudio) [com.apple.coreaudio:AMCP]   HALS_IOContext_Legacy_Impl.cpp:2309  Exitted PerformIO early - thread hasBeenStopped: 1 and shouldExit: 1
2025-11-21 13:12:56.773461-0800 0x140a     Default     0x0                  657    0    coreaudiod: (CoreAudio) [com.apple.coreaudio:AMCP]               HALS_IOEngine2.cpp:2687  HALS_IOEngine2::_StopIO(923) called on Context 928  current state: Prewarm: 0 Play: 1 State: Running


Another captured variant of errors in the log looks like this:





2025-11-21 13:06:15.623426-0800 0x44028a   Default     0x0                  728    0    audiomxd: (AudioSessionServer) [com.apple.coreaudio:as_server]  AudioAppSessionStates.mm:178   Session already matches desired recording state: 1
2025-11-21 13:06:15.623438-0800 0x44028a   Default     0x0                  728    0    audiomxd: (AudioSessionServer) [com.apple.coreaudio:as_server] AudioApplicationInfoImpl.mm:395   Successfully updated session 0x2d800a to isSessionRecording: 1
        app: {"name":"[implicit] zoom.us","pid":64268}
        AudioApp.isRecording: true
[
        { sessionID: 0x2d800a, sessionType: 'prim', isRecording: true },
]
2025-11-21 13:06:15.623484-0800 0x43fd47   Default     0x0                  64268  0    zoom.us: (AudioSession) [com.apple.coreaudio:as_client] SessionCore_macOS_Legacy.mm:124   Sent updated IOState to server: [1, 1]. BT device UIDS: {(
)}
2025-11-21 13:06:15.623485-0800 0x43fd47   Default     0x0                  64268  0    zoom.us: (AudioSession) [com.apple.coreaudio:as_client] SessionCore_macOS_Legacy.mm:167   <-- setPlayState Server update was required.
2025-11-21 13:06:15.647387-0800 0x43fe64   Error       0x0                  64268  0    zoom.us: (CoreAudio) [com.apple.coreaudio:AMCP]          HALC_ProxyIOContext.cpp:1623  HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
2025-11-21 13:06:15.658082-0800 0x140a     Error       0x0                  657    0    coreaudiod: (CoreAudio) [com.apple.coreaudio:AMCP]         HALS_OverloadMessage.cpp:249   HALS_OverloadMessage: Overload possibly due to safety violation.
2025-11-21 13:06:15.687798-0800 0x1508     Default     0x0                  657    0    coreaudiod: (libAudioIssueDetector.dylib) [com.apple.coreaudio:aid] IssueReporting.cpp:492   RTAID [ use_case=Generic report_type=RMS Generic Chain clientID=HAL node=-Output issue_detected_sample_time=3756.000000 ] -- [ rms:[-24.129469], peaks:[-5.062351] ]
2025-11-21 13:06:16.312542-0800 0x1508     Default     0x0                  657    0    coreaudiod: (libAudioIssueDetector.dylib) [com.apple.coreaudio:aid] IssueReporting.cpp:492   RTAID [ use_case=Generic report_type=RMS Generic Chain clientID=HAL node=-Input issue_detected_sample_time=5839680.000000 ] -- [ rms:[-39.351250], peaks:[-12.038595] ]