Guitar Tuner - is simple interactive software, which determining exactly pitch of your guitar strings, by using Microphone and sound card. It also can work without microphone. As a last resort you can plur headsets into microphone input. It works with most of sound cards.
Interesting fact - if you think you can tune your guitar exactly using only reference tones, you鈥檙e poorly wrong. Theoretically, when you are using reference tones and the frequencies are roughly the same, a great resonance is produced. In this case reference tone become a source of forced oscillation, which cause strings oscillation on the same Frequency. And it sounds like guitar is tuned. But actually own string frequency can greatly differ from reference tone. That鈥檚 why preferably to use passive system which only listen and does not provide any sound oscillations.
With Guitar Tuner you can:
Tune you guitar with very high accuracy.
Choose one from multiply tunings.
Tune guitar with no electric Signal output by using general microphone.
Tune your guitar comparing the sound of guitar to produced midi tones.
Play on your PC-Keyboard like on musical synthesizer.