Microphone Polar Pattern &
Proximity Effect Simulator
Visualize pickup lobes, eliminate mechanical keyboard clatter through rear null rejection, and harness proximity bass warmth.
โ๏ธ Microphone Parameters
๐๏ธ Sound Engineer Setup Recommendation
Position your Cardioid microphone on a boom arm 3 inches from your mouth at a 45-degree angle. Ensure the rear of the microphone directly faces your keyboard. This provides +5.2 dB of broadcast vocal warmth while attenuating mechanical switch clatter by -26 dB.
Frequently Asked Questions
Why is a Cardioid polar pattern essential for gaming streamers?
Cardioid microphones have a heart-shaped pickup pattern with maximum sensitivity at 0ยฐ (front of capsule) and nearly complete sound rejection (-25 dB to -30 dB) at 180ยฐ (directly behind the capsule). By aiming the back of a Cardioid mic at your mechanical keyboard and PC case fans, those noises are physically cancelled out before reaching OBS.
What is the Proximity Effect on broadcast microphones?
Directional microphones (Cardioid/Figure-8) naturally boost low-end bass frequencies (below 200 Hz) as your mouth moves closer to the capsule. Speaking 2 inches away adds a rich, warm 'radio broadcaster' voice (+6 dB bass), while speaking 10 inches away makes your voice sound thin, tinny, and picks up room echo.
Why do Dynamic mics (Shure SM7B) reject room noise better than Condensers (Blue Yeti)?
Dynamic microphones have heavier diaphragms requiring higher acoustic sound pressure to move, making them inherently less sensitive to distant room reflections and PC fan hum. Condenser microphones use ultra-light charged plates that capture every microscopic mouth click, keyboard clatter, and echo unless you are in a treated recording studio.