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Re: [microsound] flash tracker - binaural mic

At 3:38 PM +0200 4/24/05, derek holzer wrote:
Hi Tad,

vze26m98 wrote:

One of the many things that differentiate Core Sound is their response
matching of the microphone pair.

In the end, I did a poor man's capsule matching by comparing the resistance of each capsule. I bought a lot of 10, so I could make 3 or 4 "closely" matched pairs and had a few leftover for experiments. It's not as precise as actual frequency matching, but it's enough for the situation I use them for, espc considering the preamps and AD converters of my Sony minidisc and DAT walkman. I would still use them for group projects such as workshops and sound-gathering walks, as they will get thrashed in the end anyway, and in the future I will probably invest in a substantial pair of DP 4060's, which I could probably get frequency-matched by the sellers (at EUR 300-400 I would hope so!).


derek holzer ::: http://www.umatic.nl
---Oblique Strategy # 125:
"Only a part, not the whole"

Sorry to barge in from almost nowhere. I've just done some tests in conjuncton with the naturerecordist list that might be useful in this discission about affordable omni mics. Below is a link to a large, 36mb QuickTime movie comparison including WM-61a's and the Shure 183's. Since Dan Dugan pointed out the 183 omni's last Fall, I've wanted to compare them (at $200 a pair) to the 4060's. Spec-wise, the 183's are better but its often said the 4060's out-perform their self-noise rating. (Indeed, this might come from better impedance matching,.. which would be useful to explore further.)

The 183's are made for use in Shure's wireless transmitters and you must buy the parts and do a simple mod: http://www.uwm.edu/~type/Mic%20Preamps/ShureWR-183WiringNoTA4M's.jpg
Because of their high output, the 183's seem very well-suited for power in plug (PIP) devices like MD and Walkman DAT mic inputs. One can run the mic gain considerably lower. The only knock is they do overload with very loud sounds but their ability to portray space is the best I've encountered for PIP mics (that does not include experience with 4060s). Take a look/listen at the noise spectrum the 183's produces too, I find that much of it in small, very filterable, bands just above 8K. Another, lesser known PIP/Battery powered omni mic option is the KM-23 by Telinga. I'll be including it in a test in the near future. Sorry that the test is so large, dial-uppers. Rob D.

At the directory, right click the only link that's there to save the test to your drive:
(QuickTime movie with graphics & 16 bit stereo, no EQ, digital HiMD transfer)

or to load in your browser only:

Rob Danielson
Film Department
University of Wisconsin-Milwaukee

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