Distributable Stereo Hearing Test 2014 Tony Ba(u and Bri(any Harwell The Team 3/26/14 IEEE Mee@ng -­‐ James Madison University 2 Congenital Aural Atresia •  Area of ear is deformed from birth •  Malforma@on of the middle ear •  More likely in right ear, and found more in male pa@ents 3/26/14 IEEE Mee@ng -­‐ James Madison University 3 Introduc@on •  Need to test pa@ents pre and post surgery •  Currently insurance only pays for test 1-­‐month post surgery •  Need for more data to improve understanding of surgery implica@ons 3/26/14 IEEE Mee@ng -­‐ James Madison University 4 Broader Impacts •  Socially: audiology community benefit from long-­‐term data •  Environmentally: reduces energy used for tes@ng •  Technically: novel automated hearing test technology •  Economically: saves money 3/26/14 IEEE Mee@ng -­‐ James Madison University 5 How Much Money Does Our System Save? Our Package •
•
•
•
•
•
Travel Method 40 pa@ents San Diego to Harrisonburg 40 Packages built Cheapest Shipping method: UPS 5 year @me frame Total Cost: $38,000 •
•
•
•
•
•
•
•
2 days traveled 4 people traveling Cost of Gas: $3.50 Cost of a meal: $5 Doctor Fees: $25 Hotel Fees: $100 5 year @me frame Total Cost: $386,000 Total Saved: $350,000 3/26/14 IEEE Mee@ng -­‐ James Madison University 6 Outline of System Hearing Tests Set Up 3/26/14 Login Calibra1on IEEE Mee@ng -­‐ James Madison University • Sound Localiza1on • Speech in Noise 7 System Set Up 1. Lay the mat out on a clean, hard surface as shown: 3/26/14 IEEE Mee@ng -­‐ James Madison University 8 System Set Up 2. Place the hub box and connected components in the black outlined area “HUB”. Plug the box in to Power Supply. 3/26/14 IEEE Mee@ng -­‐ James Madison University 9 System Set Up 3. Separate speakers from each other and plug into the speaker stands. Make sure they are plugged in completely. Any speaker can be connected to any stand 3/26/14 IEEE Mee@ng -­‐ James Madison University 10 System Set Up 4. Connect the plas@c stands to their corresponding numbers 3/26/14 IEEE Mee@ng -­‐ James Madison University 11 System Set Up 5. Place microphone in designated spot on top of hub box 3/26/14 IEEE Mee@ng -­‐ James Madison University 12 System Set Up 6. Place the laptop in the designated box and plug the microphone in to the le` side of the laptop 3/26/14 IEEE Mee@ng -­‐ James Madison University 13 System Set Up 7. Plug the USB from the hub box into the right side of the laptop. The USB marked with a 1 goes on top and the 2 goes on the bo(om 3/26/14 IEEE Mee@ng -­‐ James Madison University 14 System Set Up 8. Turn on the computer and log in •  Choose user: XXXX •  Password: XXXXX •  Wait for the computer to open the program itself. 3/26/14 IEEE Mee@ng -­‐ James Madison University 15 Login to Tes1ng So=ware 3/26/14 IEEE Mee@ng -­‐ James Madison University 16 Calibra1on of Background Noise •  Measures and records background levels 3/26/14 IEEE Mee@ng -­‐ James Madison University 17 Calibra1on of Speaker Levels •  Measures and records speaker levels when a click from each speaker is played 3/26/14 IEEE Mee@ng -­‐ James Madison University 18 Hearing Tests •  Sound Localiza@on •  Speech in Noise 3/26/14 IEEE Mee@ng -­‐ James Madison University 19 Hearing Test 1 -­‐ Sound Localiza1on Person 3/26/14 IEEE Mee@ng -­‐ James Madison University 20 Hearing Test 1 -­‐ Sound Localiza1on 3/26/14 IEEE Mee@ng -­‐ James Madison University 21 Hearing Test 2 – Speech In Noise •  How do people dis@nguish speech from noise? –  Head Shadow Effect •  Your head blocks the speech from noise •  Helps your brain block out noise and focus on speech •  What about unilateral listeners? –  If noise is toward ‘bad’ ear, easier –  If noise is toward ‘good’ ear, more difficult •  How do people learn to process extra input a`er undergoing correc@ve surgery that gives them bilateral hearing for the first @me? 3/26/14 IEEE Mee@ng -­‐ James Madison University 22 Hearing Test 2 – Speech in Noise Least head shadow effect Most head shadow effect Person 3/26/14 IEEE Mee@ng -­‐ James Madison University 23 Hearing Test 2 – Speech in Noise 3/26/14 IEEE Mee@ng -­‐ James Madison University 24 Current Status and Future Work •  Sent prototype to UVA for in-­‐clinic data collec@on •  Develop improvements to hardware and so`ware –  Hardware: improve speaker stands –  So`ware: video and audio monitoring •  Send improved prototype to pa@ents’ homes •  Collect longitudinal data that can be used to further audiology research! 3/26/14 IEEE Mee@ng -­‐ James Madison University 25 Ques@ons? 3/26/14 IEEE Mee@ng -­‐ James Madison University 26 Acknowledgements •  James Madison University – Engineering Department •  4-­‐VA Grant •  Dr. Nagel, Dr. Gray, Dr. Kesser 3/26/14 IEEE Mee@ng -­‐ James Madison University 27