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Microphone Polar Response
Compare ideal first-order pickup at an angle with the on-axis response.
Omnidirectional weight a (0–1): 0–1; Angle from front axis (°): 0–180
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Microphone Polar Response
Omnidirectional weight a (0–1): 0.5 Angle from front axis (°): 90
- Signed pressure ratio
- 0.500000
- Relative level (dB)
- -6.020600
Ideal far-field response p = a + (1−a) cos θ, normalized to 1 on axis. a=1 is omni, 0.5 cardioid, 0 figure-eight. Level = 20 log₁₀|p|; negative pressure means reversed polarity, not extra loss. |p| below 10⁻¹² is displayed as an ideal numerical null. Angle is 0° in front, 90° at the side, 180° behind. This frequency-independent model excludes proximity effect, off-axis coloration, room sound and feedback stability; consult the actual microphone’s polar charts.
Methodology
How it works
Ideal far-field response p = a + (1−a) cos θ, normalized to 1 on axis. a=1 is omni, 0.5 cardioid, 0 figure-eight. Level = 20 log₁₀|p|; negative pressure means reversed polarity, not extra loss. |p| below 10⁻¹² is displayed as an ideal numerical null. Angle is 0° in front, 90° at the side, 180° behind. This frequency-independent model excludes proximity effect, off-axis coloration, room sound and feedback stability; consult the actual microphone’s polar charts.
Method and assumptions documented by Techrider.live
2026-11-14
Frequently asked questions
Does an ideal null guarantee feedback rejection?
No. Real patterns vary with frequency and placement; reflections and the complete sound system matter. This is not a feedback-margin prediction.