Talk:Proximity effect (audio)

Angular dependence
No citation is needed. This is simply basic geometry. A diagram would be helpful. — Preceding unsigned comment added by 70.49.107.254 (talk) 01:21, 18 June 2011 (UTC)

Citations are needed. Otherwise, it's original research, and inadmissible. Basic geometry or not. — Preceding unsigned comment added by 139.68.134.1 (talk) 19:57, 30 March 2012 (UTC)

technical explanation
Removed the inference that proximity effect is "distortion." It is not, in the way that distortion is typically defined. "Distortion" implies "undesirable" and the later text in the para defines proximity effect as "desirable." I've changed both these to be more neutral and specific to what proximity effect actually is, and away from whether or not proximity effect is "good." The mention of 100Hz is arbitrary and not really correct, as proximity effect is a constant function that continues upwards in the frequency spectrum. Proximity effect can be and is experienced at higher frequencies than 100Hz. 24.63.14.240 (talk) 15:38, 19 March 2013 (UTC) Though the EV RE-20 microphone is indeed FAMOUS for proximity effect, in spite of the marketing language found on audio sales websites, radio announcers do use proximity effect. I've removed reference to the specific mic, as it really isn't important to the point. — Preceding unsigned comment added by 24.63.14.240 (talk) 15:48, 19 March 2013 (UTC)

sound reflected from surfaces behind the diaphragm
"is permitted to impinge on the rear side of the diaphragm. Since the sound reaching the rear of the diaphragm travels slightly farther than the sound at the front"

No, that's completely wrong. The sound travels around the edge of the capsule and through the back. No external surfaces are needed. The directionality of microphones is measured in an anechoic chamber, after all. — Omegatron (talk) 02:03, 16 January 2019 (UTC)

In addition to the above two correct explanations, here's another point of view as to why the phrase "sound reflected from surfaces behind the diaphragm" is wrong. Recalling that 'Pressure' is a scalar quantity may make it convenient to visualize that the sound pressure will ALSO be sensed / felt at the Rearface of the Pressure-gradient diaphragm simply because this face is exposed to the soundfield (and NOT due to reflections from external surfaces, as mentioned). The pressure wave is first sensed by the Frontface, and a wee bit later by the Rearface after traveling a small distance around the body of the diaphragm assembly (Diffraction happening here). Thank you --- Pradip Routray, Mumbai, India.