No subject

but the ADC is not seeing a signal to record so you're getting a small
amount of noise on the output but that's it.  Unless your microphone
bias comes from some other source the fact that the Mic Bias on the
WM9713 is off will be an issue here - you need to set up DAPM routes to
connect that to your microphone widget, see Zylonite for one example.
Otherwise check the gains and mutes on the microphone->ADC path to make
sure that the signal is being amplified sufficiently.

It might be helpful to set up a bypass path from the input stages so
you can hear the output directly while adjusting the controls rather
than doing records.