Steve Zavodny Said:
"Where can I learn about sound cards for MacPro 2019. Dear Forum, I am wondering EVERYTHING, such as when it is advisable to have one, what do they do, what are the parameters for making a decision, and on & on. Any tips, thanks !! BTW, so far using and RCA to USB-C has NOT been satisfactoryfor running a tuner/amplifier. I just want to blast my computer-stored music out my speakers attached to the tuner/amplifier via the computer controls."
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Is there a Sound Card even seen?
To Find Out:
- Go to: Apple menu
- Select: About this Mac
- Click: System Report... button
- View: Audio on left-column
- Click: Audio
- View: Devices
- Confirm if a Camera is Even Seen
A Deleted App:
You've deleted the app from your Mac, but the app resides on the Dock.
Reinstall the macOS:
To reinstall this item, reinstall the MacOS. Nothing would be deleted. It's just that items that have become corrupted or deleted, would be replaced or reinstalled back to where they should be. Go Here: How to reinstall macOS from macOS Recovery - Apple Support
Important:
Create a Time Machine Backup, First:
Prior to the re-installation of your macOS, be certain to backup your Mac using a Time Machine Backup. That way, you can have something to restore your Mac from, should anything go wrong with the reinstall. Use an external hard drive that is at least 1.5 the total storage capacity.