ESP32 Forum

Hello, my name is Renan and i need to port the project ESP32 Classic to ESP32 C3.
This project use the microfone INMP441 and i need implement the FFT and Filter IIR , but i received some error in functions that use ESP-DSP library, i need confirmed the ESP32 C3 could use this library.

In attach is a image from function the i use i my project with ESP32 Classic.

Best Regards.

The -C3 should be able to use the ansi variants of the DSP library. Are you sure you called dsps_fft2r_init_fc32()? Also check the output of your compiler, perhaps it gives warnings indicating where you're going wrong.