Date

6-2013

Degree Name

BS in Electrical Engineering

Department

Electrical Engineering Department

Advisor

Wayne Pilkington

Abstract

The purpose of this project is to create a system that automatically converts monophonic music into its MIDI equivalent. Automatic pitch recognition allows for numerous commercial applications, including automatic transcription and digital storage of live performances. It is also desirable to be able to take an audio signal as an input and create a MIDI equivalent score because the MIDI information can be used to replace the original audio signal sounds with any sound the user would like. For example, if a piano composition is entered into the system, the resulting MIDI out could be used to trigger guitar samples.

The main deliverable for this project is a DSP evaluation board that takes a monophonic analog audio signal (ex. a recorder or someone’s voice creating one pitch at a time), analyzes the signal for its fundamental frequency, and outputs MIDI data that represents the pitch and timing information contained in the audio signal - all in real time.