Hi the information looks correct w.r.t. alsa-info and the mixer settings for microphone capture. It is possible that the polarity of the microphone is assembled incorrectly.

If you set the alsamixer to record from line inputs and they are enabled, then I assume it should work.

How are you recording ? arecord ?

Matt

On 10/4/20 11:54 pm, Ron via People wrote:

Hi

I just found about an alsa command alsa-info.   I have attached the output of that command just in case it helps.

On 4/10/2020 09:40, Ron via People wrote:

Hello,

I have tried everything I can find on the various AudioInjector websites to attempt to address a record/mic problem.   The problem is there is no way I can get the zero audio hat to accept audio from either the RCA input or the MIC (the supplied microphone is installed).   The output of the zero is fine and I have been using the output for a couple of months.  But just yesterday I finally got to the point of needing the audio input and found it is essentially dead.   I am at a loss as to where to go next.

This is on a Raspberry Pi 4 running the latest up to date version of Raspbian (Buster).

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