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How Close to Space Before Nobody Can Hear You Scream

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2013 ASEE Annual Conference & Exposition


Atlanta, Georgia

Publication Date

June 23, 2013

Start Date

June 23, 2013

End Date

June 26, 2013



Conference Session

Aerospace Division Technical Session 3

Tagged Division


Page Count


Page Numbers

23.665.1 - 23.665.9



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Paper Authors


Peter J. Schubert IUPUI

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Peter J. Schubert, Ph.D., P.E. is a professor of electrical and computer engineering at IUPUI and serves as the director of the RIchard G. Lugar Center for Renewable Energy. He has 35 US Patents and 75 technical publications. Schubert has been the PI on grants from NASA, DOE, DOD, USDA, GSA, and state agencies.

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Steven Anthony Zusack

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How Close to Space Before Nobody Can Hear You Scream  Stephanie Willoughby, Steven Zusack, Peter J. Schubert, IUPUI  Results are presented from a balloon‐launched experiment to measure the effect of air pressure on sound transmission for various frequency ranges.  Wireless transmitter/receivers mounted a fixed distance apart within a soundproofed, but not airproof, enclosure measure attenuation of human screams as a function of altitude.  The experiment was designed to provide real‐time, qualitative data for the amusement of student observers, plus logged data from which the enclosed plots are derived.  Aerostat services were provided by Spaceport Indiana with a target altitude of 85,000 feet.  The experiment was designed, conducted, and analyzed in just two weeks by a newly‐formed student group. 

Schubert, P. J., & Zusack, S. A. (2013, June), How Close to Space Before Nobody Can Hear You Scream Paper presented at 2013 ASEE Annual Conference & Exposition, Atlanta, Georgia. 10.18260/1-2--19679

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