gbadev.org forum archive

This is a read-only mirror of the content originally found on forum.gbadev.org (now offline), salvaged from Wayback machine copies. A new forum can be found here.

DS development > FFT

#165768 - Maxxie - Tue Jan 06, 2009 11:43 am

Heya,

trying to get the spike frequencies from the mic input. I have tried to use a 1D DCT but well that didn't work as intended. It looks pretty random to me.

So i wanted to know if someone did a real FFT on the DS already. And could help me with a hand.

Thanks in advance.
_________________
Trying to bring more detail into understanding the wireless hardware

#165779 - 0xtob - Tue Jan 06, 2009 5:52 pm

Hey! I did an FFT implementation for the DS (source) a while back. The source of the demo app probably won't compile with the new libnds but the fourier code should be pretty independent of libnds.

Hope you can use it!
_________________
http://blog.dev-scene.com/0xtob | http://nitrotracker.tobw.net | http://dsmi.tobw.net

#165780 - Maxxie - Tue Jan 06, 2009 6:39 pm

Thank you 0xtob, will have a look at this.

Was a bit desperate today, because it just didn't want to work.
_________________
Trying to bring more detail into understanding the wireless hardware