Apple’s Worldwide Developers Conference to kick off June 10 at 10 a.m. PDT with Keynote address

The Keynote will be available to stream on apple.com, the Apple Developer app, the Apple TV app, and the Apple YouTube channel. On-demand playback will be available after the conclusion of the stream.

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Michaelych Author

Level 1

4 points

Sound

I have a MacPro. Lately there is a buzzing sound when I listen to videos or movies or conferencing calls. How do I correct this?

Posted on Jul 21, 2021 6:14 AM

Best reply

dominic23

Level 10

83,916 points

Posted on Jul 21, 2021 9:12 AM

Reset PRAM: Reset NVRAM or PRAM on your Mac - Apple Support

Settings that can be stored in NVRAM include sound volume, display resolution, startup-disk selection, time zone, and recent kernel panic information. The settings stored in NVRAM depend on your Mac and the devices that you're using with your Mac.

If this step doesn’t help, please contact Apple Support.

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