Sound – Audio Projects

Guitar Special Effects Using Atmega32

<Introduction> In the last few decades technology has constantly pushed music further and further into the digital realm. Digital technology has infiltrated all aspects of music-making, from its creation to its recording, editing and production. We have decided to join this technology movement by fitting it to our taste. Since both of us enjoy playing […]

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Vocal Trainer Using Atmel Mega32

Introduction With the Vocal Trainer, expect to resurrect your singing, and ultimately become a vocal expert! The purpose of this Vocal Trainer, designed by Anderson Lin and Jerry Chiang, is to train people in singing accurate pitches, and ultimately become a vocal expert. Also, the vocal trainer has other features such as tuning, in which

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Digital voice recorder using Atmel Mega32 microcontroller

Our project is a digital voice recorder with distortion abilities that stores multiple tracks onto a DataFlash memory card. We programmed an Atmel Mega32 microcontroller to sample a microphone, and store the samples into an external memory source.  We give the user the option of recording multiple tracks, and playing back any track at any

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MP3 Player Using Atmel Mega103L

Introduction Using MPEG Layer-3 compression, 40 MByte audio files have been compressed to approximately 3.5 MBytes. With the wide availability of MP3 files via the Internet, portable MP3 players have become increasingly popular. MP3 players are currently available that utilize either Compact Discs, SmartMedia, Compact Flash, or a hard-drive as their storage medium. Our interest

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Digital Music Synthesizer Using Atmel 90s8515 chip

Introduction: Our ECE 476 Spring 2002 final project is a musical synthesizer that mimics the sounds produced by a piano and a clarinet.  We wanted to create a device that could produce different musical signals by direct digital synthesis.  Using Fourier analysis of the signals, we were able to imitate the sounds from different musical

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