© 2017 Musical Instrument Museum. Used with permission.

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Jolene’s Musical Instrument Museum Adventure

1. 3M Personal Safety Division, Indianapolis, Indiana 462682. College of Natural & Health Sciences, Audiology & Speech-Language Sciences,

University of Northern Colorado, Greeley, Colorado 806393. Colorado State University, Fort Collins, Colorado 805234. Musical Instrument Museum, Phoenix, Arizona 85050

Cameron J. Fackler1, Donald S. Finan2, Elliott H. Berger1, Deanna K. Meinke2, Michael E. Stergar1, Sean Finan3, Brian Dredla4, Katie Runyan4,

Kortney Carr4, and Justin Gillespie4

Meet JOLENE!

CROET Summer Project: 2006

• Directed by William Lambert, Ph.D.

• Goal: Develop a device to measure music player sound levels and educate adolescents/young adults about safe music listening levels.

• Based on Dave Brown’s “purple head”

How Loud is Your Music?

www.dangerousdecibels.org/jolene.cfm

50 States + Washington D.C.31 Countries

Challenge:

Design and build a stand-alone, interactive Jolene exhibit for the Science of Sound gallery at MIM.

Original Jolene Ear• Anatomically correct pinna & concha, short ear canal, silicone material.

Design of Jolene’s new ear: Match the MIM headphone shape, anatomically “correct” ear canal, maintain compatibility for earbuds.

Design of Jolene’s new ear: Match the MIM headphone shape, anatomically “correct” ear canal, maintain compatibility for earbuds.

Initial Design Refinement to create channel for headphone/earbud cable and to match angle of the head.

Design of Jolene’s new ear: Match the MIM headphone shape, anatomically “correct” ear canal, maintain compatibility for earbuds.

Side View View of interior showing pinna, concha, ear canal, & microphone socket

Design of Jolene’s new ear: Match the MIM headphone shape, anatomically “correct” ear canal, maintain compatibility for earbuds.

Concha:10mm length

Mounting Hole

Mounting Hole

Pinna:53mm diameter (inside)

Ear Canal:8mm diameter,27mm lengthMicrophone Socket:

13.5mm diameter,6mm length

3D Ear: Printing• Material: Thermoplastic urethane (TPU), semi-flexible

Building the MIM’s Jolene

Jolene’s “guts”

Ear graphic: CC BY 2.5, https://commons.wikimedia.org/wiki/File:Anatomy_of_the_Human_Ear_blank.svg

TFOEs, SPLs, A-weighting… Oh My!

85 dBA8 hours

Calibration: Jolene meets KEMAR

Calibration: Headphone sensitivity variability

• 26 MIM headphones tested•Output levels within 4 dB• 11 within 1 dB

Sound level display (1st try)

Sound level display (final version)

Communicating hearing health

• Visitors spend, on average, between 51 and 89 seconds viewing monitors in the gallery

• Jolene monitor cycles through 4 slides• Lots of pictures!(Full versions at end of this presentation.)

Jolene on her new adventure!

© 2017 Musical Instrument Museum. Used with permission.

Jolene’s Musical Instrument Museum Adventure

cameron.fackler@mmm.comDonald.Finan@unco.eduBrian.Dredla@MIM.org

dangerousdecibels.org/jolenewww.MIM.org

The following slides are shown on a monitor next to Jolene in a rotating slide show.

These slides © 2017 Musical Instrument Museum. Used with permission.