NAME

       gtkguitune - KGuitune

SYNOPSIS

       gtkguitune

DESCRIPTION

       This  manual  page documents briefly the gtkguitune program.  This manual page was written
       for the Debian GNU/Linux distribution because the original program does not have a  manual
       page.

       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.

       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.

SEE ALSO

       http://www.geocities.com/harpin_floh/kguitune_page.html
              Project web page.

AUTHOR

       This manual page was written by Antonín Král <A.Kral@sh.cvut.cz>, for the Debian GNU/Linux
       system (but may be used by others).

                                        September 06, 2003                               WMKBD(1)