Download Team Building and Project Idea - Purdue College of Engineering

ECE 477
Digital Systems Senior Design Project
Fall 2006
Homework 1: Team Building and Project Idea
Due: Friday, August 25, at NOON
Proposed Project Name: _______________Algorhythms_________________
Team Members (#1 is Team Leader):
#1: Chris Arges
Areas of Expertise: Software
#2: Radhika Mulani
Areas of Expertise: Sensors
#3: Sumanth Peddamatham
Areas of Expertise: PCB
#4: Alex Tucker
Areas of Expertise: Audio Effects
Project Idea:
Abstract
Our project is to create a music playback device that accepts input from sensors (i.e.
accelerometers, photosensors, MIDI) to modulate music with digital audio effects. This device
enables all people, with or without musical ability, to dynamically interact with music.
Motivation
The advent of mp3 players has further solidified the listener in a passive role with little to no
ability to alter the sound. On the other hand, MIDI, a common musical parameter control
protocol, is nothing but a series of messages and hence, sounds only as good as the sound
generator parsing it. As such, MIDI streamed in an inexpensive soundcard sounds radically
different from the same played on a quality synthesizer. The mod file format was a response to
this in that it includes a number of embedded samples called in response to control messages.
This makes a mod file sound the same regardless of what processor it is played on. Creating a
hardware media player for such a file type would combine the flexibility of MIDI with a static
sound quality comparable to that of an mp3. The ideal end application of this device would be
an interactive portable media player with a unique human interface.
Design Objectives

parse .mod files and output to a headphone jack
ECE 477
Digital Systems Senior Design Project

accept user input to alter various parameters

digital audio effects generation

data transfer to and from device
Fall 2006
Cost Estimate
Processor, Sensors, ICs:
(Sampled)
Packaging:
$100
Discretes:
$50
Miscellaneous:
$50
Total:
$200
Contribution
Chris will schedule meetings, program the music file player structure and control software.
Radhika will work on software for sensor interfacing.
Sumanth will be developing the PCB layout and music file player software.
Alex will oversee the documentation and as well as implement digital audio effect algorithms.
Preliminary Block Diagram
Serial
Data
External
Memory
ADSP-BF532
Various
Sensors