What is this, and how do I remove it?

[anaverageperson]

So I was editing a video lately, but then I came across something unknown. I don't even know the name for it, and I want immediate help. How do I disable it?

[Peru Bob · Accepted solution]

That is an audio panel.

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