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by delgaudm 1896 days ago
If its a cardioid pattern mic (it probably is), they are less sensitive from the back -- so if you can have the back of the mic point at the keyboard, that would help.

If you don't mind that I self post to a youtube video, but this segment shows how the pattern and placement of the mic can reduce pc fan and keyboard noise.

https://youtu.be/7WyNIQlOFIA?t=858