because the audrino has a 16 MHZ processor it limits sampling rate.
Furthermore, avr takes 13 conversion cycles, similarity , if the cycles took less steps you can increase the sampling rate. Is that correct?
Moreover, what other limitations does the audrino have in terms of an audio system as I made
example like the Arduino Due or the ras pi mcu.
however i didn't fully understand the purpose of the two resistors and the capacitor.