Assistive Hearing Loop Table

Project Goal: Create a system that allows for individuals with T-coil hearing aids to hear what is relevant to them while eliminating annoying background noise.

Introduction: A major problem with current hearing aids is they don’t discriminate what noise is amplified. This becomes especially problematic when hard of hearing individuals find themselves in a crowded and noisy environment. The idea behind the AHLT Table was creating a coil under a table in the Purdue Memorial Union that works like a T-coil inside of hearing aids to create a small electromagnetic field that only amplifies the noise inside of it. The finished AHLT table resides in the back of the basement of the Union and is still functional today.

Project Start Date: Spring 2014

Project Delivery Date: Spring 2015

Project Members: Adam Walt, Asif Ashraful, Kailee Frocchi, Andrew Furman, Christina Lara.

Zambia Project

Project Goal: To provide easily accessible research and an educational module for those in need in Zambia. Our objective is to enable our project partner to train workers to perform diagnostic audiology tests at ten provincial hospitals across the country.

Introduction: Dr. Lata Krishnan and Dr. Jessica Simpson, our Purdue project partners, have organized a Maymester study abroad trip to Zambia, Africa. Zambia, a country nearly the size of Texas, has only one audiologist, Alfred Mwamba and desperately in need of audiological education and treatment.

Semester Objective: The semester objective is to create an organized literature review compiling a variety of research as well as create a simple educational module which can be used to educate healthcare personnel in Zambia.

Project Status: Currently researching public health approaches, non-profit groups, rural health care systems, newborn hearing screenings and contacting individuals to create the literature review; beginning to research and design the educational module

Project Start Date: Fall 2012

Project Delivery Date: May 2013

Project Members: Patricia Rhymer, Kate Geisen, Kelsey McDonald, Mallory Rotondo, Taylor Remick


Hearing Aids Fitting System

Project Goal: Convert the HAFS from Excel into a more accessible platform that is available online.

Introduction: Currently the software is available as an Excel sheet only. This is not usable at all times to all audiologists unless they have Microsoft Excel on their computers. The project warrants the need for an easier and more accessible way of reading the software such as a web link.

Semester Objective: Determine the best solution and work towards delivering it.

Project Status: Investigating possible solutions; conceptual design.

Project Start Date: Fall 2012

Project Delivery Date: December 2012

Project Members: Varsha Hariram, Sara Harman

Hearing Loop System

Project Goal: Help the First Methodist Church decide whether to install Hearing Loop or hire a consultant; provide education about the system to the congregation.

Inroduction: Everybody has been to a church service or community event where reverberation makes listening difficult. Individuals with hearing loss have an even more difficult time listening. We have been collaborating with a local church to install a hearing loop system which provides a solution to this problem.

Semester Objective: Serve as a liason between consultants and church group; aid in decision of self installation vs. correct consultant; provide education to congregation on how to appropriately use hearing loop system.

Project Status: Specification development phase

Project Start Date: Fall 2012

Project Delivery Date: End of Fall 2012 semester

Project Members: Jillian Wendel, Krista Ashmore

Virtual 1.0

Project Goal: Provide undergraduate sutdents in the field of Audiology and Speech Sciences with an opportunity to practice diagnostic procedures on virtual patients.

Introduction: Virtual Project is to provide undergraduate students in the field of Audiology and Speech Sciences with an opportunity to practice diagnostic testing procedures on fake patients. Undergraduate students are not able to work with real patients to practice skills learned in the classroom. This hands on experience can prove to be very beneficial to many students. This program is groundbreaking and there is currently no other product meeting our partners specific needs available to students.

Project Delivery Date: Fall 2010

EZ-AID (Hearing Aid Kit)


Project Goal : The goal for EZ-AID is to provide clients with poor dexterity a easy-to-use, durable hearing care kit which is cost effective while providing an "easy aid" solution to their everyday hearing-aid use.

Introduction : There are many hearing aid cleaning kits currently in the market however none are made for people with poor dexterity. The idea of EZ-AID was based on battery changing of the hearing aid by making a design similar to "PEZ-Dispenser" for storing batteries and changing batteries without any difficulities. This will be called the "PEZ-BAT". Also EZ-AID's main focus was on the size and grip of the tools for the users. There will also be a container for the tools which will look nice and modern for the users to carry it around.

Project Delivery Date: Spring 2010

Acoustical Barriers

Project Goal: Acoustical Barriers will entail designing and building a way for the Morton Community Center to help create temporary meeting areas in their preschool that will isolate the users visually from the rest of the classroom and aid in acoustical isolation. The benefactors of the project include the instructors and audiology students who perform the testing, and the preschool students on whom the testing is performed. The Morton Community Center will receive the deliverables from the project. The project exists to benefit the mission of the Morton Community Center with respect to their preschool speech testing efforts.

Project Delivery Date: Fall 2009.

Church Consulting Project

Project Goal: To solve audio quality issues at McGrawsville United Methodist Church.

Introduction: EPICS students from Purdue University were asked to provide assistance to improve the audio quality of McGrawsville UMC.

Project Delivery Date: Spring 2012


Facts: EAR is a model of an ear for educational purposes to students enrolled in the speech and audiology program. With a system that is simple to operate it will generate standing waves on a circular plate at different octaves of the natural frequency of the plate. These waves will then be visualized with the aid of fine crystal such a table salt. EAR uses a linear inertial force transducer (large version of a voice coil in a speaker) to excite the plate. EAR allows students to control the pressure inside the eardrum, which will change the wave propagation, just as in a real ear.

Project Delivery Date: Spring 2009.


Facts: FRESPA is an in-line audio equalizer meant to help improve speech intelligibility of cell-phones for individuals with normal hearing or mild hearing loss.  It is attached to the mobile phone of the user and increases the volume level of various pitches that are important for understanding differences between words so that the consumer is better able to hear the conversation while talking on the mobile phone.

Project Delivery Date: Spring 2008


Facts: Larynx is a human vocal system model, which consists of respiratory, phonation, and resonance subsystems. It is a “hands-on” model or a learning guide and visual aid to complement the anatomical teaching of speech mechanisms in the fields of biology, medical sciences, speech and language sciences. Larynx is also a tool to assist researchers studying topics related to the human vocal system, such as laryngeal prosthetic design. The modular design coupled with user-control will allow the variance of several model parameters to explore the effects on the acoustical characteristics such as the pressure drop across the vocal folds and the standing wave patterns within the system.

Project Delivery Date: Spring 2009.


Facts: Voice level meter (VLM) is to help people who speak either too loudly or too softly. VLM is PDA software program that allows the PDA to function as a dosimeter. The meter shows the user how loud they are speaking and what level they should be aiming for.

Project Delivery Date: Fall 2008.