You do not have to give up your clicky switches to stream. Keyboard noise on a broadcast is mostly a geometry problem, partly a hardware problem, and only lastly a software problem, and if you tackle it in that order you can keep the board you love. Streamers who start with software usually end up with a voice that sounds like it is underwater and a keyboard that is still faintly audible anyway.
Why the keyboard sounds louder on stream than in the room
To your ears, typing is background. To a microphone, it is a series of sharp, percussive spikes happening a forearm’s length away, often with a hard desk underneath acting as a soundboard. Two things make it worse.
The first is distance. Sound level falls off quickly as you move away from a source, so a mic that sits far from your mouth and roughly the same distance from the keyboard hears both at similar strength. Turn up the gain so your voice is loud enough, and the keys come up with it.
The second is the pickup pattern. Most streaming mics are cardioid, meaning they are most sensitive at the front and least sensitive directly behind. A desk mic standing upright behind the keyboard, pointed at your face, has the keyboard sitting squarely in its sensitive zone.
Fix the geometry first
A boom arm is the single most effective purchase for this problem, and a cheap one does the job. It lets you bring the mic within a hand’s width or so of your mouth, which means you can turn the gain down substantially. Your voice stays the same volume on stream, while everything else in the room, keyboard included, drops.
Then use the pattern to your advantage. Position the mic so that its rear, the dead spot, faces the keyboard. For a front-address mic, that usually means hanging it from above or bringing it in from the side at mouth height, aimed at your face with its back toward the desk. Small changes in angle make an audible difference, so record a test, rotate the mic a little, and record again.
Finally, get the mic off the desk surface. A stand sitting on the same slab of wood as the keyboard picks up every bottom-out as a low thump transmitted through the furniture. A boom arm clamped to the desk edge helps, and a shock mount helps more.
Quieten the board without ruining it
Once placement is sorted, a few inexpensive tweaks take the edge off the sound at its source:
- A desk mat under the keyboard stops the desk from resonating.
- O-rings or softer keycaps reduce the clack of keys bottoming out.
- Lubed or linear switches remove the click itself, if you are willing to swap.
- Foam inside the case dampens the hollow ring of a cheap chassis.
None of these will make a mechanical keyboard silent, and they do not need to. The goal is to lower the peaks enough that the next stage can finish the job cleanly.
Let software handle what is left
With the keyboard already quiet relative to your voice, software has an easy task and does it without damaging your sound. OBS ships with a noise suppression filter and a noise gate. The gate mutes the mic when you are not speaking, which covers all the typing you do in silence, such as chatting with viewers between matches. Suppression handles the clatter that happens underneath your speech. Machine-learning suppression, whether it is the option built into OBS, the one in Discord, or NVIDIA Broadcast for those with an RTX-class GPU, is noticeably better at keystrokes than older methods, because key clicks are short, sharp sounds that simpler filters were never designed for. Sites that focus on streamer audio, such as Loadout Audio, walk through these filters individually if you want to see how each one is configured.
Resist the urge to max everything out. Heavy suppression on top of a high gate threshold is what produces the robotic, clipped voice that viewers complain about more than they ever complained about the keys. Set the filters as gently as you can get away with, then test.
Testing means recording, not asking chat. Make a short local recording in which you type in silence, talk without typing, and then do both at once, because the last case is the hardest. Listen back on headphones at the volume a viewer would use.
A little clack is not a crime
Plenty of viewers enjoy hearing some keyboard during intense moments, since it is part of the texture of watching someone play. What drives people away is keyboard noise that competes with your voice. Get the mic close, point its blind side at the desk, soften the board a little, and let gentle filtering do the rest. Your switches can stay, and chat can go back to arguing about something else.