Digital Guitar Tuner

Eric Tai | Daniel Tsui

ECE 476: Spring 2005


Introduction | High Level Design | Program/Hardware Design | Results | Conclusions | Appendix




            We constructed an analog-to-digital guitar that captures an input signal and uses the waveform zero-crossings to determine whether the note is at the correct frequency.


            The hope was that this frequency tuner could be used in a home setting where each of us can tune our own guitars.  While a great number of students are musically gifted individuals, very few have “perfect pitch”, the ability to accurately pinpoint a note if it is slightly off.  Since neither of us have this amazing ability, we figured that we could make a device to help us in that department.