Am I allowed to use a guitar instead of being restricted to poor quality .wav sounds?

LOL you are allowed to do whatever you want with this homebrew, but I think at this stage it's not an accurate tuner yet, thats why he wants people to do the tests for him, so he can calibrate it properly for musical instruments. But I am sure he would appreciate any and all input.

a440.wav +00c (the second zero was flickering slightly, but it stayed on 0)
c523.wav +00c (second zero bumped up to 1 a couple times during the playback, very briefly)

Looks like a nice and simple little app.  I hope it works out.  The waveforms on the top screen look really nice.  I tried it with my guitar and the meter was all over the place, so it looks like that´s not quite ready yet.  Although it stayed a bit more steady with my voice than with the guitar.  I assume that´s the timer issue you´re talking about.  Anyway, I hope you can do something with it!  I would definitely use this app.

Great work  

   I tested it and I got good results

for the c523.wav I got 523 +00c only the second Zero twitched a few times though

for the a440.wav I got 440 +00c only the second Zero twitched a few times


I think this is a very good app for the Ds and I would like to see this go far.The Oscilloscope on the Top Screen was a cool touch  and I also needed a Guitar Tuner too

  Thanks    

Tried both audio files, they worked fine. I even tuned my guitar with it, with a bit of patience.
Keep up the good work!

yeah i got it to work fine (only for sines) and even if you cant make a full tuner app, you could always release the oscilloscope as a separate project! thats reason enough for me to keep it.

also i used an old keyboard (not qwerty) that can output sine and i found that it was very accurate D3 and higher, even more precise in the upper range. keep up the good work, id love to see a real functional tuner i can have on my DS, it might help me tune timpani.

440wav-----440.1 and the C box flicker a little

523wav-----523.3 and the c box flicker again slightly



It would be really sweet to have a Guitar tuner on the DS..........

Ha! Even slightly incomplete, this homebrew is still made of as of yet unrealized win.

Has the original author abandoned this (looks like it)? Could someone possibly continue it?

A guitar tuner will help an untold number of homebrew users, really.