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Post by jayson on Jul 18, 2016 6:08:58 GMT -6
So I went on Vacation up in Maine and took my Radial Workhorse 5000 along to do a little recreational recording in paradise. In this situation I was using two CAPI VP 28 pres on an acoustic guitar. Slot one had a Josephson C42 and slot two had SM-57 on it. As I was jockeying the mics around looking for a nice placement I became aware of a squealing sound that would happen if the mics faced each other. "Odd", I thought, "I've heard of phase cancellation - but never a squeal." Turns out that the "Feed" switch on the back of the WH5K had somehow gotten thrown and the signal from the C42 was emerging from the diaphragm of the SM57...like it was a small speaker. The squealing I was hearing was feedback the 42 was picking up FROM the 57! Freaky. I guess it's good it was an SM57 - I don't know if anything else would've survived something like that.
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Post by svart on Jul 18, 2016 6:35:16 GMT -6
Yep, a dynamic mic uses the same general design as a speaker (diaphragm that moves with air pressure that moves a coil through a magnetic field to induce current flow), just tuned for receiving audio.
It's the opposite concept to the "subkick", which uses a larger speaker as a large mic for low frequencies.
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ericn
Temp
Balance Engineer
Posts: 14,952
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Post by ericn on Jul 18, 2016 7:08:17 GMT -6
I once met a guy who used SM57s as tweeters! They sucked but they worked! Chris pretty much nailed it !
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