Internally Miked Accordion Project (5 x WM-61A) - Page 2 - diyAudio
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Old 7th August 2012, 02:08 PM   #11
diyAudio Member
Join Date: Aug 2012
Interesting, the bass side isn't picked up at all by my treble side microphone unit thing :S
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Old 7th August 2012, 03:06 PM   #12
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Join Date: Jul 2005
Location: North Derbyshire
Originally Posted by jwheeler View Post
Do you know why Bill Wall's Microphone circuit has transistors before the matched resistors?
To provide a lower impedance output, and a 'sort of' balanced output.
Nigel Goodwin
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Old 8th August 2012, 02:44 PM   #13
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Join Date: Nov 2008
I have not worked with mics in a closed space like this (pix in post #7), but I see 2 possible problems:
Is the WM61 capsule, even after mods, able to handle the SPL, which propably >120dBSPL
The spacing of the 3 mics in the treble keyboard side invites for serious lobing, and discolouration of the sound. The least I would do is test the setup with switcheable microphones, replacing the switched-off mic with a load to maintain the same level to do a compare. E
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Old 26th June 2014, 05:25 PM   #14
scone is offline scone  United States
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Join Date: Nov 2004
Location: Austin, TX
Sorry to revive such an old thread, but I'm curious if you followed through with this project? I'm also trying to come up with an accordion mic design as the price tag on the ready-made kits is pretty staggering.
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