I'm a French guy so my english is limited...
I've designed and built an audio analyser.
see
It traces gain and phase of HP impedance and frequency response from 20Hz to
20 kHz using 600 steps (not limited to that).
(OK, don't tell me that your sound card does it as well, I know)
My question is: "on witch site could I publish this (open) projet".
For those who knows Elektor, it uses an R8C13.
Best regards
Vincent