Digital Guitar Tuner

Eric Tai | Daniel Tsui

ECE 476: Spring 2005

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

Introduction

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.