1
Verify the likely cause
Connect directly to a different USB controller, disable selective suspend for testing and check DPC latency for a misbehaving driver.
FULL AI ANALYSIS
USB microphone produces crackling audio under CPU load
Generated Sep 16, 2026, 11:55:04 AM
Analysis summary
The reported behaviour is consistent with uSB scheduling latency or power saving delays isochronous audio transfers. The safest next step is to verify that hypothesis with a reversible test before making permanent configuration changes.
Possible causes
USB scheduling latency or power saving delays isochronous audio transfers.
83%A recent software, firmware or configuration change is exposing an existing compatibility issue.
37%Suggested fixes
2
Validate and monitor
Reproduce the issue once after the change, review relevant logs or metrics, and keep a rollback path until the system has remained stable.