INMP441 sound quality issue with Pico.

[jimtal001]

First, Thanks for your great work here!

I was able to run your code for the pico/INMP441 and save the wav file to my SD card successfully. On reviewing the recordings its clear that volume is quite low. I am barely able hear my voice when speaking within a few inches of the mic. Since the microphone samples at 24 bits and your code is creating a 16 bit wav file is there a possibility that we are loosing the addition information in the signal?

the post here discusses this issue:
https://electronics.stackexchange.com/questions/647968/how-to-remove-inmp441-mems-microphone-low-frequency-noise

Thanks for your help!
Jim