Hello!
I am trying to connect an electret microphone to the stereo in jack. I soldered 1,3V (pin 8 from U8) through an 1k ohm resistor to stereo in pin 2. This should be enough to feed an electret microphone capsule connected to the stereo in jack. The mic is a standard headset mic with a stereo plug. On my oscilloscope only extreme loud sound shows up. Did I miss something? I use the aic3204 project, because it provides a simple pass-through demo. The headphones remain silent, except when I blow very hard directly on the mic. Are there any other ways to connect a mic?
Kind regards,
Holo
PS: I did not use the MICBIAS pin as power supply because our soldering equipment is not fine enough.