Update: I switched to esp-idf 5.1 and it worked quite well. Maybe idf 4.4.3 has problem with reading 32-bit samples with INMP441 ?

Hi, I do exactly the same as chris_oz but in IDF 4.4.3. But after read I2S, my buffer32 is all zero. When I change to 16 bits per sample, it works. But with 16 bits per sample, when I test with 500Hz, it seems like it's not working correctly. I just really want to know why 32 bits per sample not wor...

Hi everyone. I'm working with INMP441 and ESP32 Dev kit v1 in ESP-IDF 4.4.3. I set i2s 32 bit per sample and then using i2s_read function to read data from DMA and store in an array. I copy exactly what this guy do https://esp32.com/viewtopic.php?t=15185 // Connections to INMP441 I2S microphone #def...