Hi rararaca,
Welcome to Microsoft Community.
Based on the original description, we understand that your device is experiencing abnormal audio service usage.
Audio service usage as high as 10% is not a common situation. It may mean damage to the service, damage to the profile, or indirect interference from the driver/extra process.
Generally, you can try to use more professional tools to check if there is other information associated with the process. For example, process monitor.
Process Monitor - Sysinternals | Microsoft Learn

How to gather a ProcessMonitor log - Microsoft Community

If possible, would you mind sharing more information about this issue with us?
Were there any special events in the device before the situation first occurred?
For example, system update, driver update, application update, BIOS update, firmware update?
The original description mentioned "other windows troubleshoots".
Do these include clean boot, new local profile or generic audio driver?
Example of generic driver


Manage user accounts in Windows - Microsoft Support


Clean Boot starts Windows with a minimal set of drivers and startup programs. It can be used to determine whether a background service or program is interfering or causing a problem.
These steps of "clean boot" might look complicated at first glance. However, to avoid any trouble for you, please follow them in order and step-by-step.
Please be careful not to disable any services that may be related to security credentials or security authentication, such as TPM, Security, Credential.
If I misunderstand your situation, feel free to correct me and share the information.
Best Regards,
Kyo.Y - MSFT | Microsoft Community Technical Support