This issue was bothering me for over a year until I figured out the 2 only fixes:
- Use (FREE) Macs Fan Control app. It lets you slow down your fans.
- Use a dynamic microphone. (See my best streaming microphones review.)
More details:
I’ve been trying to record videos without fan noise for my Youtube videos for a while and couldn’t figure out how to get nice clean audio sound with the loud fan noise from my 2019 Macbook Pro in the background. I keep trying even different mics like condensor mics (which supposedly block noise coming from the back) but they still picked up the sounds…how annoying!
The fan control app is great but I wouldn’t completely shut the fans off. I think you can still run them around 4k rpm and have some critical cooling during CPU-intensive tasks like recording. And they won’t be audible at that rate. If you don’t want to spend any money, the fan control app alone should be able to do it for you.
Buying a quality dynamic microphone would be great to have better audio quality but will cost more and maybe some technical hassle depending on whether you go USB or XLR microphone (which needs a preamp). Also, dynamic mics have to be closer to your mouth and visible on your video (which you may not want).
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