I am supplying the electret mic board with 3.3v and it's OUT pin to the READYTOSKY DVR's audio IN pin. The DVR is powered by a separate 5v. Grounds are isolated from each other. I am getting no recording of my voice during testing. Just a bunch of noise (I tried to attach my AVI file)!! I have adjusted the gain twice, no change. I added a 22uf capacitor in line with the audio out/in, no change.... The data sheet is attached. What am I doing wrong? Please help.
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