pMic
Description
A Printable A-B-Stereo Microphone I Wanted To Have A Mic Which I Cought Use For General Purpose Recording In Conjunction With My Old Iriver H120 (With Rockbox Installed). I Didn'T Found A Suitable Mic Without A Build In Recorder:) So After A Little Bit Googleing I Found This Article About A Low-Cost Homebrew Solution Http://Www.Wildlife-Sound.Org/Equipment/Technote/Micdesigns/ And Decided To Get A Bunch Of These Panasonic Wm61-Capsules Described In The Article To Start Experimenting With Them - Here Is The Result. A Special Feature Of This Microphone Is It'S Variable Stereo Width (By Time-Of-Arrival Stereophony). The Button Near The Audio Jack Is The On/Off-Swiitch, The Second One A Gain Boost. By Swapping Two Resistors In The Circuit, The Gain Boost Could Be Easily Converted To A Gain Damp. The Preamp Circuit Isn'T Necessary At All, If Your Recorders Preamp Has Phantom Power. But The 9V Battery Increases The Headroom For Louder Signals And Powers The 4 Capsules More Convenient. The Distance Between Capsules And Preamp Shouldn'T Boo To Long. I'M Quite Happy With The Sound. You Can Download Some Audio Examples Here: Https://Github.Com/Piesi/Pmic/Tree/Master/Docs/Audio_Examples
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