Re: short pickup range options
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Due to the reverse square law, a useful signal will distinguish itself better from the background when going close to the source. That's the main thing. Radio people sometimes opt for dynamic mics. Due to the higher mass of the membrane and the resulting inertia, distant, weaker sounds, don't come through so well. It's a case of trial and error, and I wouldn't hope for a high-quality result. Coles lip microphone (ribbon) makes use of the proximity effect to reduce far-away noises, especially the lower frequencies. Sensitivity is misleading here.
certainly there are "less sensitive" microphones, though, right?
i suppose the most obvious example would be something like a piezo, where there would actually need to be direct contact with the element in order to produce a voltage.
On Sun, Jan 12, 2025 at 5:52?AM Jerry Lee Marcel via <jerryleemarcel= [email protected]> wrote:
Le 12/01/2025 à 09:40, Johan Vandermaelen via a écrit?:
> ?In live radio, they sometimes opt for a dynamic mic and going very
> close to the sound source.
In this case, the nature of the transducer (dynamic, electret or
condenser) does not make a difference. It's only the distance that matters.
Putting the mic as close as possible to the source increases the level
of desired sound, when parasitic sounds are identical, so it increases
the Wanted-Signal-to-Unwanted-Signal ratio.
> You miss out some details and the frequency range is rather limited,
> but it's a way to lift ou your subject out of it's environment
Dynamic microphones have an undeserved reputation for being less
sensitive to ambiant sounds or feedback, when they only attenuate high
frequencies. Actually most condenser mics have a better directivity
control than dynamics.
-- Johan Vandermaelen
6 Moon Parrizal
sonic scenography
Hofveldweg 47, 9420 Aaigem Belgium +32(0)473 343 880
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