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 KGuitune |
 QtGuitune |
 GtkGuitune |
Description:
Guitune is a linux program for tuning guitars and other instruments by using
the method of Schmitt-triggering, i.e. counting the number of triggerings
between two trigger levels in a certain amount of time. Why not use FFT like
many other tuning devices? Well because other tuning devices are not as fast
as mine !!
With FFT you need many samples to archieve the accuracy needed for tuning instruments. You often get times of around 1 second between two measurements and the computer is quite busy in this second calculating the FFT. Using Schmitt-triggering you get a measurement every 10th of a second or even less (depending on the sample frequency you use). Most of the time the computer only waits for the samples.
The Trigger levels are adjustable. For a pure sine-wave the trigger levels
could be zero. But for a wave wth overtones like the one in the figure above
you need a non-zero triggerlevel. It is preadjusted to a level of 60% of the
current maximum which should be able to deal with most instruments.
Features:
| Actual Version: | 0.7 |
| freq scales: | normal(A=440Hz) / wien(A=435.0 Hz) / physical(C=16.0 Hz) |
| tune scales: | equidistant / natural(overtones) |
| tune names: | US/German(B/H), #/b-notation |
| oscilloscope: | with timescale in ms for general use |
| samplig: | adjustable sampling frequency and accuracy |
| samplig: | now 16 bit sampling for better accuracy with low signals |
Download:
GtkGuitune
| GtkGuitune-gtk2-0.8-source - 66 KB | Gtk2 version source tarball with some improvements (thx to Neil Roberts) |
| GtkGuitune-0.7-source - 54 KB | Gtk-- version source tarball |
| GtkGuitune-0.6-source - 54 KB | Gtk-- version source tarball |
K3Guitune
| K3Guitune page | maintained by tux_rocker@planet.nl |
K2Guitune
| K2Guitune-0.1-source - 331 KB | KDE-2.X version source tarball |
| This is the new KDE-2.X.X Guitune version (not all features implemented yet, therefore the low version number) | |
Ver 0.5
| KGuitune-0.5-source - 154 KB | KDE version source tarball |
| QtGuitune-0.5-source - 42 KB | Qt version source tarball |
| GtkGuitune-0.5-source - 43 KB | Gtk-- version source tarball |
Ver 0.4
| KGuitune-0.4-source - 154 KB | KDE version source tarball |
| QtGuitune-0.4-source - 42 KB | Qt version source tarball |
| GtkGuitune-0.4-source - 43 KB | Gtk-- version source tarball |
Ver 0.3
| KGuitune-0.3-source - 152 KB | KDE version source tarball |
| QtGuitune-0.3-source - 42 KB | Qt version source tarball |
| GtkGuitune-0.3-source - 43 KB | Gtk-- version source tarball |
If the above links won't work you can also try this mirror
http://wald.heim.at/urwald/540006/kguitune_page.html
or download the latest version from sunsite at
ftp://www.ibiblio.org/pub/Linux/apps/sound/ and ftp://www.ibiblio.org/pub/Linux/X11/kde-apps/sound/
also check out my Linux-Page
for more free linux software.
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Florian Berger - florian.berger@jk.uni-linz.ac.at