Small Dynamic Mic Elements
Small Dynamic Mic Elements
Anyone have a source for small (about 1cm or .5") dynamic mic elements?
Currently I'm using an earbud element connected to the transformer from a 57, my problem is it's too sensitive and the cartridge distorts at moderate SPL. I need something a bit more robust, fidelity and frequency response take a back seat in this instance, as you may have deduced. Size and SPL handling are the main parameters.
Currently I'm using an earbud element connected to the transformer from a 57, my problem is it's too sensitive and the cartridge distorts at moderate SPL. I need something a bit more robust, fidelity and frequency response take a back seat in this instance, as you may have deduced. Size and SPL handling are the main parameters.
The previous statement is from a guy who records his own, and other projects for fun. No money is made.
Nothing too exciting, I'm fitting the microphone into something, and that is the size of the aperture I've got to work with. I can't make it any larger without a large amount of hassle, and not just for me, and I can't use an electret because it has to be passive.
The previous statement is from a guy who records his own, and other projects for fun. No money is made.
Err yes, that's what I'm currently using, the problem is it's too sensitive. I need something with a bit more SPL resistance. I suppose I could just spray some kind of gunk into the cavity in front of it, but that's really going to make it sound muffled isn't it?
The previous statement is from a guy who records his own, and other projects for fun. No money is made.
- ubertar
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Maybe this would work: http://www.goldmine-elec-products.com/p ... ber=G19512
Cool, I'll maybe give it and this a try, make up that $10 minimum.
http://www.goldmine-elec-products.com/p ... ber=G15681
http://www.goldmine-elec-products.com/p ... ber=G15681
The previous statement is from a guy who records his own, and other projects for fun. No money is made.
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- george martin
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- george martin
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Yes, at one point it was running into a box, and along the snake to a house mixer. I was trying to make it as much of a 'real' microphone as I could.
If you can picture a malleable funnel, with the mic glued in the narrow end, and someones face in the big end, that's kind of what I've got here, except with a bit more twists and turns, there are a couple of small places air can escape, but my worry is, it's the air pressure as well as the sound pressure that is overloading the ear bud, sound likely?
If you can picture a malleable funnel, with the mic glued in the narrow end, and someones face in the big end, that's kind of what I've got here, except with a bit more twists and turns, there are a couple of small places air can escape, but my worry is, it's the air pressure as well as the sound pressure that is overloading the ear bud, sound likely?
The previous statement is from a guy who records his own, and other projects for fun. No money is made.
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I know it's not exactly passive, but MEMS mics are extremely tiny. Tiny enough that using them is questionable for the average DIYer.
Here's one in usable form:
https://www.sparkfun.com/products/9868
You may be into some resistor swapping to change the opamp gain...I seem to recall that it clips at about 90 dB SPL, but the mic is rated to 120.
Full disclosure: I'm an employee of Sparkfun.
Here's one in usable form:
https://www.sparkfun.com/products/9868
You may be into some resistor swapping to change the opamp gain...I seem to recall that it clips at about 90 dB SPL, but the mic is rated to 120.
Full disclosure: I'm an employee of Sparkfun.
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