I tried many microphones—Blue Yeti, Snowball, AT2020. Then I tried a more "professional" approach with a Roland UA25-EX audio interface and a CAD GXL3000 condenser microphone. This was a good combination. However, my videos have a lot of typing, and big microphones like the Blue Yeti or the GXL3000 get in the way of seeing the keyboard, and even the slightest movement can change the audio quality and volume levels. I then hired a sound production consultant and went through a (quite expensive) testing process. I tried microphones such as Sennheiser MKH416 and Rode NTG3. These are shotgun microphones often used by professional YouTubers and filmmakers to create talking-head videos and movies. The benefit of shotgun microphones is highly directed audio recording, so in theory they sound very well at a fair distance away. This means they are not on camera, which is good for talking head. However, my room has some echo so they did not sound as well as I had hoped. I also had a very small amount of echo with large diaphragm condenser microphones. The best quality I have managed to achieve after all my tests is with the Shure SM35. This microphone looks like it will not sound very good because it clips around your head (similar to a headset). However, because it was designed for musicians playing on-stage while playing an instrument, it has excellent noise directionality (does not capture key presses or echo) and it also has excellent sound quality. It really is a big step up! You do need an audio interface to go along a microphone like this. The UA25-EX is no longer made, but you can get a Scarlett 2i2 instead. - Jose
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