I'm planning on getting Audio Data from a MEMS Analog Microphone with an OPA344Nna as the OP-AMP.
I'd like to just make sure the audio circuit looks correct. (Analog/Audio is something a bit new to me, but I'd like to get it working for wake words / other)
I'm planning on taking readings using the ESP32's built-in I2S Analog read with 16Khz and 2 buffers for 1-second audio data (further processing done on this later, but hardware first!).
What I'm asking is if the circuit looks correct.
Any advice or suggestions is welcome!
The whole application is a smartwatch, please refer to the sensors section for the audio schematic.