By “circular net”, I mean [this item](https://www.123rf.com/photo_107497142_microphone-in-sound-recording-studio-professional-microphone-for-recording-music-or-broadcasting-rad.html) in front of the microphone.
In: Technology
When you say certain letters, like ‘s’, or ‘p’, a puff of air comes out of your mouth. If you’re talking to me from a normal distance, the puff of air dissipates before it can get near my eardrums. I only hear the vibrations that you create with your mouth and voice box. But if you speak directly into my ear, or into a microphone, the puff of air will hit my eardrum, or the membrane in the microphone which fulfills the same function. This puff is picked up as a (relatively) loud noise, which sounds similar to someone (briefly) blowing in your ear (because, well, that’s basically what it is).
One way to stop this from happening is to sit or stand further away from the microphone. But that’s not a great solution because it also makes the recorded sound weaker. So a better way is to put this little filter between your mouth and the microphone. The filter lets vibrations through very well, but catches and dissipates these little puffs of air before they hit the microphone.
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