---
name: "gtkguitune"
section: "1"
platform: "linux"
package: "gtkguitune"
version: "0.8-6+b3"
release: "Debian 12 (Bookworm)"
platforms: ["linux"]
url: "https://new.carta.tech/gtkguitune"
---

# gtkguitune(1)

KGuitune

## 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).