The term Proximity effect is used to identify the increase in bass response whenever a directional microphone is brought within 1 foot of the sound source.
Omni-directional microphones are unaffected by proximity effect, which is an exaggeration of low frequencies brought on by the use of ports to produce directed polar pickup patterns. The proximity effect can easily lead to a boost of up to 16dB, typically below 100Hz, depending on the mic configuration.
The conductors' material, diameter, frequency, and structure are the main determinants of the proximity effect. Frequency - As the frequency rises, the distance gets closer. Diameter - As the conductor size grows, the proximity effect gets stronger.
When a directional microphone is put close to a sound source, the proximity effect happens. It causes a higher low-frequency response when a sound source is nearby. The proximity effect only affects directional microphones.
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