ESP32 Forum

I used the Espressif FIR filter from their ESP-DSP Library in a project.
Which someone might find useful.

https://docs.espressif.com/projects/esp ... s.html#fir

https://github.com/bobh/ESP_DSP/tree/ma ... P/ESP32FIR

Here’s a YouTube of the FIR Filter (Bandpass) running. Unoptimized ANSI C.
A 220 Tap Filter and the BLE Stack running at the same time in a $1 ESP32 is pretty amazing I think. But then I don’t get out much.

https://youtu.be/p_xYwLlHv3Y