October 5, 2013
about a year ago
Never mind. I’m an idiot, and an internet search about microphone bias is your friend if your like me and don’t know what your doing.
Question for anyone that’s played with one of these, how do you connect a microphone from a standard phone headset through a TRRS connector? I have tried hooking up MIC_RP to the sleeve, with MIC_RN to Ring 2, MIC_LP -> S MIC_LN -> R2; MIC_RP & MIC_LP -> S, MIC_RN & MIC_LN -> R2, and nothing seems to work. I can hear audio just fine, but nothing goes through the mic. Am I missing an amplifier or do I have to do something with MIC_BIAS_A? I have FORCE_ANALOG_MIC set to ON, but still nothing. I realize that I have probably bit off more than I can chew with this, but any help is appreciated.
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