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  [Left] Willis Broden (AP '06) performing a modal analysis of a Gibson ES-335 hollow body electric guitar. [Fall 2002] [Right] Paul Thomas (AP '03), Mark Kingstrom (ME '03) and Chidi Uhiara (EE '03) measure the frequency response of a pop bottle (Helhmotz resonator). [Winter 2003] |
   [Left] Josh Wheeler (EE '03) measure the decay at various "dead spots" along the neck of an electric guitar. [Middle] Ben Hodge (EE '03) tests the on-axis response of a loudspeaker in our semi-anechoic room. [Right] Brian Hoffman (ME '02) performs a modal analysis measurement to find the vibrational modeshapes and frequencies of a baseball bat. [Fall 2002] |
 
[Left] Josh Wheeler (EE '03) and Nichole Hodsdon (ME '03) examine the behavior of a high pass acoustic filter. [Right] Ben Hodge (EE '03) and Brian Hoffman (ME '02) measure acoustic absorption coefficients with an impedance tube. [Fall 2002] |
   [Left]Roshin Cherian (ME '03), George Hagedon (ME '03), and Nicole Hodsdon (ME '03) attempt to light a Rikje tube in which a heat source produces sound. [Middle] A scaled down version produces successful results (George is rejoicing). [Right] Testing an attempt at a thermoacoustic refrigerator which uses sound to move heat. [Fall 2002] |
 
Dave Ebaugh (ME '03), Roshin Cherian (ME '03) and George Hagedon (ME '03) testing the effect of baffle size on the radiation impedance for a pipe. [Fall 2002] |
Kimberley Pregitzer (ME '02) and her buddy the binaural head. Kim used the head to measure binaural localization cues then wrote a program in Matlab to digitally manipulate a sound file to appear to come from a specific location. [Spring 2002] |
 
Blong Xiong (ME '01) and Shawn Lange (ME/EE '01) designed, built and measured the performance of a compound subwoofer system. [Winter 2001] |
  
Michael Blenman (ME '04) and Wes Haveman (AP/EE '02) measuring the decay time for a plucked guitar string as a function of fret position. [Winter 2001] |
  Matt Dilber (EE '01) and Greg Laplander (EE '01) looking for Chladni patterns for a square plate driven at its center. [Winter 2001] |
 Ya-Jiang Bemmen (AP/ME '00), Nate Dau (AP '01) and Eric Kendall (ME '00) measuring the Thiele-Small parameters of a loudspeaker. In the photo they are finding the free-resonance of the speaker while in a vacuum (bell jar). [Spring 2000] |
 Jason Jupe (ME '00) and Jesse Gratke (ME '00) measuring the performance of active control headphones [Fall 1999] |
 Amber Koa (EE '00) and Andrea Majcher (EE '99) investigating the behavior of plucked and struck strings [Summer 1999] |
 Lance Kornoelje (EE '01) and Trent Nobach (EE '01) perfoming an experimental modal analysis on a free-free bar. [Summer 1999] |
 Zach Lott (EE '00) and Brent Kirkwood (EE'00) measuring the input mechanical impedance at the bridge of an acoustic guitar [Summer 1999] |
 Pontus Weibull (AP '00) and Paul Pedersen (AP '01) mapping the mode shapes of circular membranes and plates. [Summer 1999] |
 Amber Koa (EE '00) editing some sound files on one of the NeXT computers [Summer 1999] |
 Wes Havemann playing and performing an experimental modal analysis on his Gibson Explorer. Check out his results. [Winter 1999] |