ESP32 Forum

Good afternoon,

I would like to know if you have any library that can be used to realize a high pass numeric filter
on a signal sampled at 16KHz.

I am sampling a signal at 16KHz and I would like to remote the 50Hz present in this signal because
of electromagnetic disturbances. Moreover, if you have this kind of library, could you please explain me how to
use it ? How to compute the filter ?

Thank you for your help on this subject,

Thomas TRUILHE

I think you need Scipy.
https://docs.scipy.org/doc/scipy/reference/signal.html

Ok, thank you but could you explain me how to design a high pass filter with this application please ?

ESP-DSP has features for this. Easiest to use may be this (although the FIR variants are hardware accelerated, if you need that)