Hi,
I have implemented a pitch shifting algorithm which takes a 16bit PCM sample and modifies its pitch.
Everything works fine when i flash my program. but if i unplug and replug my rp2350, it still works, but i have some additional noise... I can't manage to find where this comes from. I've tried to power it from a power bank, but it's still the same.
Some details:
I am using the C sdk + s/pdif library from the pico-extras repository. But i have also encountered this bug when using i2s output + Earle Philower's Arduino core (it worked perfectly when using the C sdk).
Here is the spectrogram :
I have implemented a pitch shifting algorithm which takes a 16bit PCM sample and modifies its pitch.
Everything works fine when i flash my program. but if i unplug and replug my rp2350, it still works, but i have some additional noise... I can't manage to find where this comes from. I've tried to power it from a power bank, but it's still the same.
Some details:
I am using the C sdk + s/pdif library from the pico-extras repository. But i have also encountered this bug when using i2s output + Earle Philower's Arduino core (it worked perfectly when using the C sdk).
Here is the spectrogram :
Statistics: Posted by maximeandre1986 — Sun Aug 10, 2025 10:06 am