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Post by mrholmes on Oct 16, 2015 3:34:50 GMT -6
The question is if large diaphragm capsule technology covers more off a given space.
In other words small diaphragm capsule technology is more directional??
Is that right???
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ericn
Temp
Balance Engineer
Posts: 15,014 
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Post by ericn on Oct 16, 2015 6:40:21 GMT -6
No, think of all the respected SDC omnis and the omni very small diaphragm measurement mics.
As always making generalizations can get you in trouble.
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Post by tonycamphd on Oct 16, 2015 6:49:49 GMT -6
AFAIK Directionality is a function of polar patterns through pressure gradient. SDCs have excellent off axis transient response compared to LDCs because of the tighter, quicker diaphragm size, but that's not always better.
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Post by mrholmes on Oct 16, 2015 7:13:10 GMT -6
AFAIK Directionality is a function of polar patterns through pressure gradient. SDCs have excellent off axis transient response compared to LDCs because of the tighter, quicker diaphragm size, but that's not always better. Intresting I always thought the larger the capsule the lesser good is the transient response?? Did not kenw that there are also diffrences in the axis….. Background is I am about to sell my UMT 70s becasue I always tend to like the KM 184 better even for some vocals. I have to think about it… |
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Post by Ward on Oct 16, 2015 7:47:27 GMT -6
Background is I am about to sell my UMT 70s becasue I always tend to like the KM 184 better even for some vocals. I have to think about it… How much? |
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Post by svart on Oct 16, 2015 8:00:46 GMT -6
Completely different capsule technology.. Each design type with different back plates, membrane thickness, material, headbasket shapes, etc, can make vast differences.
The UMT70s has the thick membrane PVC M7.. It will never be as "fast" and detailed sounding as the KM184 which has a thinner and smaller membrane.. But then again, the km184 will never have the "beef" of the UMT70s in the mids and lows..
It's like comparing apples and telephones!
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Post by Ward on Oct 16, 2015 8:37:25 GMT -6
It's like comparing apples and telephones The speakers in my Apple Macbook pro sound like a telephone. |
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Post by markfouxman on Oct 16, 2015 9:03:23 GMT -6
The question is if large diaphragm capsule technology covers more off a given space. In other words small diaphragm capsule technology is more directional?? Is that right??? The directionality of a microphone (or for that matter any transducer) depends on many things. One of them is amounts of pressure and pressure gradient elements involved (which are also frequency dependent), and another is... physical size of the diaphragm, so on the frequencies where the wavelenght approaches the size of the diaphragm it progressively becomes more directional. As such (and to answer your question very generally), since the directionality is a function of the size (in other words, the bigger, the more directional) the SDC are actually less directional... but also there are other factors... There is a good article from Shure, which is a must to read for anybody who is interested in how microphones work. Hard to find, as it buried on their website... but here it is: cdn.shure.com/publication/upload/434/us_pro_dual_diaphragm_paper_ea.pdfBest, M |
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Post by tonycamphd on Oct 16, 2015 9:08:41 GMT -6
AFAIK Directionality is a function of polar patterns through pressure gradient. SDCs have excellent off axis transient response compared to LDCs because of the tighter, quicker diaphragm size, but that's not always better. Intresting I always thought the larger the capsule the lesser good is the transient response?? Did not kenw that there are also diffrences in the axis….. Background is I am about to sell my UMT 70s becasue I always tend to like the KM 184 better even for some vocals. I have to think about it… LDC's are slower in their transient response and more prone to proximity, but sometimes thats exactly what you want. "Axis" represents a centered line 90* to the capsule face, off axis is anywhere else, the off axis transient response of a SDC is quicker than a LDC, sometimes the legato feel of an LDC is more natural, the decision to use one over the other is alway dependent on the sonic goal of the material you're tracking ime. Keep both those mics 8) edit; after Marks post, mine= 8/ |
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Post by mrholmes on Oct 16, 2015 9:43:09 GMT -6
Intresting I always thought the larger the capsule the lesser good is the transient response?? Did not kenw that there are also diffrences in the axis….. Background is I am about to sell my UMT 70s becasue I always tend to like the KM 184 better even for some vocals. I have to think about it… LDC's are slower in their transient response and more prone to proximity, but sometimes thats exactly what you want. "Axis" represents a centered line 90* to the capsule face, off axis is anywhere else, the off axis transient response of a SDC is quicker than a LDC, sometimes the legato feel of an LDC is more natural, the decision to use one over the other is alway dependent on the sonic goal of the material you're tracking ime. Keep both those mics 8) edit; after Marks post, mine= 8/ Thank you special thanks to Mark. Yupp seems to be the case to keep them both. Do you know SDC which come near the km 184 without spending another 1k in Euros? I am asking because very seldom I wish to have more than two km 184..... |
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