New Release of GuitarTune v0.20 (based on Alsa)

Jakob jackramone at
Sun Feb 8 11:28:56 CET 2009

On Sun, Feb 8, 2009 at 7:44 AM, c_c <cchandel at> wrote:

>  You're welcome. And thanks for the input - didn't know trumpets could be
> tuned too! Makes sense though.
>  Well, theoretically, the freq detection is only limited by the mic
> characteristics and the sample rate. Since I'm sampling at 44100 (after the
> shift to alsa) - the program should detect upto 20KHz without any prob.
>  I have, however, restricted the freq detection between 20 to 350 Hz (to
> save on calculations and ease off the lag).
>  As the dsp code gets better (as I experiment with it - hopefully:-) I'll
> increase the freq range. Does anyone have any inputs about what the range
> should be? I'm not really looking at covering all the keys in a Piano - but
> that can be done too - with greater lags.
>  Also - it would be nice to hear about what other instruments are being
> tuned! Hmmm, time to change the name of the app perhaps?!
>  I'm also in the process of pimping up the GUI. Just thought it would be
> nice to look at a sexier GTK program! I was kind of going for a guitar
> fretboard look (I know it's been overdone on the iPhone) but maybe I need to
> relook that. Any Ideas?

Maybe it's possible to create profiles for different instruments. Then
the range of the freq detection could be limited and thus we still
have fast detection.

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