If that doesn't work, try resetting the Workspaces: Reset a workspace Reset the current workspace to return to its original, saved layout of panels. 1. Do one of the following: • Click the Workspace menu icon and select Reset to Saved Layout. • Choose Window > Workspace > Reset to Saved Layout. from here: https://helpx.adobe.com/premiere-pro/using/workspaces.html
If that doesn't work, try Preferences > Audio Hardware and set Input to None.
We're sorry to hear about this. Let us know the exact version of Premiere Pro that you are using & the system specs. Also, are you experiencing this issue with any specific project or multiple projects? If it's with any specific project, try these steps & check if it helps.
Create a new project & navigate to Window > Workspaces > Reset to Saved Layout
Window > Workspaces > uncheck Import Workspace from Projects
File > Import, navigate to the project file you were working with & import it.
Once imported, save this new project & check if it's working properly.