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    • D
      DOY38 replied to the thread Audio board (REV D)..
      Thank you for your advice, impossible to make a dividing bridge with resistors (too much parasite), I have a -40 dB attenuator but I think the level is a little loud for a microphone input (generally around -60 dB). Probably I'll enter the signal...
    • D
      DOY38 replied to the thread Audio board (REV D)..
      Thank you for this precision but my frequency generator does not generate an offset. Now the microphones need bias for their operation, and my generator doesn't need this bias voltage. I'm not sure of my connection.
    • D
      DOY38 replied to the thread Audio board (REV D)..
      Hi, GBF (I mean frequency generator), I've just enter a sinusoidal adjustable in amplitude, gain and frequency. I don't have any offset on my signal and according to the diagram there is already a decoupling capacitor 0.1µF on the board, right ...
      • 1711441464557.png
    • D
      DOY38 posted the thread Audio board (REV D). in Audio Projects.
      Hello, I've a audio board, I don't have a microphone and I connected a GBF instead (with a level of -40 dB), is it okay on these inputs ? Thanks in advance.
      • 1711379998177.png
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