I'm here to help you remove the voice that says "Welcome to QuickBooks Live Q&A" when you launch the QBO App.
Let's perform some troubleshooting to isolate this behavior. I've got a few options that we can do to get the voice to go away when you're working inside of the QBO Windows App.
Option One: We can start by refreshing the App data. You can do this by going to the Help tab in the top menu, then pressing on the Refresh Data button. Once completed, log out of the app and log back in to see if the voice is still there. If the issue persists, let's move on to the next troubleshooting option.
Option Two: We can perform a hard reset by closing the App, holding the Shift Key, and then opening the App while holding the Shift Key. If successful, you'll be asked to log back in. After logging in, listen to see if the voice is still there. If it's still there, then let's perform one more troubleshooting option.
I went through every one of those options, one at a time, ultimately uninstalling and reinstalling Quickbooks (version 4.1.4). Each time the audio seems to return faster after Quickbooks is launched. Originally (this morning) the audio seemed to be marketing for Quickbooks, but now (this afternoon) it is entirely out of context. It does this in both the App and the Browser version. Each of those will tend to repeat the same audio each time they are launched. It is completely confined to within Quickbooks. There is no separate window to close to stop it; the only want to stop it is to close Quickbooks whether the app or the browser. I am not having this happen with anything else.