Frequency Response Audio Visualizer

Team Couch Street Jake Nylund

Kevin RatuisteRobert Rodriguez

Alex ArlintAcademic Advisor:Dr. Joseph Hoffbeck

Industry Representative:John Turner – Impinj, Inc. Clients: William Taylor - Student

OverviewTeam IntroductionProject BackgroundSystem Block DiagramDesign Challenges/RisksImportant DecisionsMilestones Overview

Team IntroductionAlex Arlint – Electrical engineer with 2 summers

experience at LLNL, programming in MATLAB and working on laser systems. Aptitude in MATLAB will be useful for potential programming of micro-controllers.

Kevin Ratuiste – Electrical engineer with summer experience at Uniwest working with eddy current instruments. Soldering and VLSI chip design knowledge. Spring team lead.

Jake Nylund – Computer Engineer currently working in the IT department of a steel manufacturing company. Experience with hardware and software. Website administrator and Fall team lead.

Robert Rodriguez – Computer Engineer currently working for the University of Portland. Experience with audio signal and sound equipment. Website administrator.

Project BackgroundSound visualizer using ferromagnetic fluid

Liquid that becomes magnetized in the presence of a magnetic field

Idea for this project came from two team members’ proposals:

Work with ferrofluid Work with sound to process audio input

Idea is to break the frequencies of an audio file into low-range, mid-range, and high-range

Separate ferrofluid container made of plexiglass for each frequency range

http://www.youtube.com/watch?v=6hLeKBNHBk4.

System Block Diagram

Design Challenges/RisksFerrofluid may react differently than we expect

Experiment extensively with the fluid to adequately characterize its behavior

Obtaining a power supply that can supply the amount of power needed and designing a circuit to control that power

Have yet to determine a solution

Certain hardware components may be difficult to construct

We plan to consult the various faculty members to overcome this potential future setback

Important DecisionsTesting the ferrofluid and characterizing its

behavior Key to the success of the project Allows us to determine how to best manipulate the fluid

to achieve desired results

Only building one display to begin with If there is an issue, it will only be in 1 display instead of

all 3 Once the single display functions well in testing, the

remaining 2 will be constructed

Milestones Overview First Draft of Functional Specifications Document: 9/20/2013 Adviser Approved Draft of Functional Specifications Document:

9/27/2013 * Final Draft of Functional Specifications Document: 10/4/2013 * Complete Testing of Ferromagnetic Fluid & Electromagnets:

10/13/2013 Determine Filters for Signal Processing: 10/20/2013 * Finalize Design Layout and Specifications: 10/27/2013 First Draft of Design Document: 11/1/2013 Adviser Approved Draft of Design Document:11/8/2013 * Final Draft of Design Document and Final Budget: 11/15/2013 Order All Parts: 12/1/2013 Finish Building Base and Get Audio Input: 1/17/2014 ** Finish Building One Ferromagnetic Fluid Display: 1/24/2014 ** Finish the Digital Signal Processor Controls: 1/31/2014 * Testing and Debugging / One Fully Operational Display: 2/7/2014

 

Build Second and Third Displays:2/21/2014

Add Signal Processing for Two More Filters:2/28/2014

* Final Assembly Testing: 3/14/2014

First Draft of Final Report: 3/21/2014

Adviser Approved Draft of Final Report: 3/28/2014

* Final Draft of Final Report: 4/4/2014

* Founder Day Presentation: 4/8/2014 Presentation of the Ferromagnetic Fluid Visualizer to the School of Engineering.

Milestones Overview Cont.

SummaryTeam IntroductionProject BackgroundSystem Block DiagramDesign Challenges/RisksImportant DecisionsMilestones Overview

Questions?