1. Capstone Design Team 1 Kahnec De La Torre – Lead Report Manager
BSEE – Programming and Wireless Networking
Mike Haynes – Lead Manufacturing Manager
BSEE – VHDL
Bounnong Khamphoumy – Lead Project Integrator
BSEE – Electronics
Jason Knedlhans – Lead System Designer
BSEE – Audio
Joseph Spitz – Lead Presentation Manager
BSEE – Cacophonic Electronics

2. Selected Project The i1 A musical instrument
New variation on synthesizer
Mounted like a keyboard or
upright like a cello
Enables user to produce varied sounds
Digital Effects including echo, auto-wah, and distortion
Analog overdrive effects
Continuously variable frequency selector
Requires both hands to play

3. The Instrument Analog Comparison System Frequency Selector
Attack / Decay Control
Summing
Amp
Low Freq Oscillator
Signal Routing
Digital Controls
Analog Audio
Analog Controls
Analog Control
DSP State
Serial 16 bit Digital
Digital Control
Analog Audio Output
Analog Effects
DSP
Processor
Power Supply
Pre Amp
Joe
Mike
Kahnec
Filter
DAC
Jason
Bounnong

4. Standard Requirements
Maximum Surface Temperature
40 OC
Operating
Temperature
Humidity
0 to 40 OC
0 to 100 %
Storage
Maximum Surface Potential
0.1 mV
Life Cycle
Product Lifetime
Warranty Period
Service Strategy
10 years
90 days
Factory Repair

5. Performance Requirements
Power
Input Voltage
Max Power
100 to 240 VAC
150 W
Output Frequency Range
20 Hz to 20 kHz
Total Harmonic Distortion
< 1 %
Output Voltage
-2 V to +2 V

6. Performance Requirements
User Inputs
Frequency Selector
Continuously variable selection
Frequency range of 1.5 octave per selector
Distance between chromatic notes between 2 and 5 cm
Multiple Tap Selectors
Selectable effects processing
Patch synthesized audio through effect or bypass
Analog Potentiometers
To control output amplitude
To set amplitude attack
To set amplitude decay

7. Performance Requirements User Indicators & Displays
DSP effect state indicator – three digits
Level of effect applied
LED Indicators
System on/off state
Analog effect state

8. Performance Requirements Any Combination of Analog and Digital Effects
Modes of Operation
Any Combination of Analog and Digital Effects
Digital Effects
On/off
Effect
Echo
Distortion
Auto-Wah
Effect intensity
Effect parameter
Analog Effect
On/off
Adjustable overdrive intensity