Arnold Tubis

Professor Emeritus of Physics
Home Office
8099 Paseo Arrayan, Carlsbad, CA 92009

Telephone: (760) 479-0388
Fax: (760) 479-0330
Email: tubisa@aol.com

B.S., Physics 1954 Massachusetts Institute of Technology 
Ph.D., Physics 1959 Massachusetts Institute of Technology

Research Interests

Current

Auditory biophysics, musical acoustics (1981-present) Auditory Biophysics at Purdue.

Previous

theoretical aeroacoustics (1985-89); theoretical nuclear and high energy physics (1960-81).

Awards and Honors

• Undergraduate Scholarship, Massachusetts Institute of Technology, 1951-54
• Eastman Kodak Graduate Fellowship, Massachusetts Institute of Technology, 1955-57
• Fellow, the American Physical Society, 1977
• Fellow, the Acoustical Society of America, 1997

Professional Experience

• Scientific Consultant, 2000 - present
• Visiting Scholar, Institute for Nonlinear Science, University of California, San Diego, La Jolla, CA, 2000 - present
• Professor Emeritus of Physics, Purdue University, 2000 - present
• Head Department of Physics, Purdue University, 1989-1997
• Acting head, Department of Physics, Purdue University, 1988-89
• Professor of Physics, Purdue University, 1969-2000
• Assistant Head, Department of Physics, Purdue University, 1966-73
• Associate Professor of Physics, Purdue University, 1964-69
• Assistant Professor of Physics, Purdue University, 1962-64
• Physics Research Associate, Purdue University, 1960-62
• Assistant Professor, Department of Physics, Worcester Polytechnic Institute, Worcester, MA, 1958-60
• Research and Teaching Assistant, Department of Physics, Massachusetts Institute of Technology, 1951-57
• Mathematics Instructor, New Preparatory School, Cambridge, MA, 1955-56

Highlights of Recent Work

Musical Acoustics. Gave first detailed mathematical analysis of the effects of air loading and kettle shape on the musical properties of the orchestral timpani.

Aeroacoustics. Helped to develop a general computational method for analyzing the instability modes of jets with arbitrary mean flow profiles.

Auditory Biophysics. Auditory Biophysics. Helped to establish that spontaneous otoacoustic emissions in humans are manifestations of limit-cycle oscillations in the cochlea (inner ear); developed unified theories of spontaneous and evoked otoacoustic emissions and the related microstructure of the hearing threshold; promoted the use of otoacoustic emissions as non-invasive probes of cochlear function. Auditory Biophysics at Purdue.

Ph.D. Theses Supervised: 11
Refereed Publications: 100

Selected Publications

1. C.L. Talmadge, A. Tubis, "On Modeling the Connection between Spontaneous and Evoked Otoacoustic Emissions," in Biophysics of Hair Cell Sensory Systems, ed. H. Duifhuis, et al., World Scientific Publishing Co., 25-32, 1993.
2. C.L. Talmadge, A. Tubis, et al., "New Off-line Method for Detecting Spontaneous Otoacoustic Emissions in Human Subjects," Hearing Res. 71, 1700-182, 1993.
3. P. van Dijk, H.P. Wit, M. Segenhout, A. Tubis, "Wiener Kernel Analysis of the Inner Ear Function of the American Bullfrog," J. Acoust. Soc. Am. 95, 904-919, 1994.
4. P. van Dijk, H.P. Wit, A. Tubis, C.L. Talmadge, G.R. Long, "Correlation between Amplitude and Frequency Fluctuations of Spontaneous Otoacoustic Emissions," J. Acoust. Soc. Am. 96, 163-169, 1994.
5. W.J. Murphy, C.L. Talmadge, A. Tubis, G.R. Long, "Relaxation Dynamics of Spontaneous Otoacoustic Emissions Perturbed by External Tones. I. Response to Pulsed Single-tone Suppressors," J. Acoust. Soc. Am. 97, 3702-3710, 1995.
6. W.J. Murphy, C.L. Talmadge, A. Tubis, G.R. Long, "Relaxation Dynamics of Spontaneous Otoacoustic Emissions Perturbed by External Tones. II. Suppression of Interacting Emissions," J. Acoust. Soc. Am. 97, 3711-3720, 1995.
7. W.J. Murphy, C.L. Talmadge, A. Tubis, G.R. Long, E.F. Krieg, "Relaxation Dynamics of Spontaneous Otoacoustic Emissions Perturbed by External Tones: III. Response to a Single Tone at Multiple Suppression Levels," J. Acoust. Soc. Am. 100, 3979-3982, 1996.
8. C.L. Talmadge, A. Tubis, P. Piskorski, G.R. Long, "Modeling otoacoustic emission fine structure," in Diversity in Auditory Mechanics, ed. E.R. Lewis , et al., World Scientific Publishing Co., 462-471, 1997.
9. A. Tubis, C.L. Talmadge, "Ear canal reflectance in the presence of spontaneous otoacoustic emissions. I. Limit-cycle oscillator model," J. Acoust. Soc. Am. 103, 454-461, 1998.
10. C.L. Talmadge, A. Tubis, G.R. Long, P. Piskorski, "Modeling otoacoustic emission and hearing threshold fine structures," J. Acoust. Soc. Am. 104, 1517-1543, 1998.
11. C.L. Talmadge, G.R. Long, A. Tubis, S. Dhar, "Experimental confirmation of the two-source interference model for the fine-structure of distortion product otoacoustic emissions," J. Acoust. Soc. Am. 105, 275-292, 1999.
12. C.L. Talmadge, A. Tubis, C. Tong, G.R. Long, S. Dhar, "Temporal aspects otoacoustic emissions," in Recent Developments in Auditory Mechanics, ed. H. Wada, et al., World Scientific Publishing Co., 25 - 31, 2000.
13. A. Tubis, C.L. Talmadge, C. Tong, "Modeling the temporal behavior of distortion product otoacoustic emissions," J. Acoust. Soc. Am. 107, 2112 - 2127, 2000.
14. A. Tubis, C.L. Talmadge, C. Tong, S. Dhar, "On the relationships between the fixed-f_1, fixed-f_2, and fixed-ratio phase derivatives of the 2f₁ - f₂ distortion product otoacoustic emission," J. Acoust. Soc. Am. 108, 1772 - 1785, 2000.
15. C.L. Talmadge, A. Tubis, G.R. Long, C. Tong, " Modeling the combined effects of basilar membrane nonlinearity and roughness on stimulus frequency otoacoustic emission fine structure," J. Acoust. Soc. Am. 108, 2911-2932, 2000.
16. C.A. Shera, C.L. Talmadge, A. Tubis, " Interrelations among distortion-product phase-gradient delays: Their connection to scaling symmetry and its breaking," J. Acoust. Soc. Am. 108, 2933-2948, 2000.
17. A. Tubis, G.R. Long, and C.L. Talmadge, "Cochlear wave reflections, otoacoustic emissions, and the microstructure of the hearing threshold," Echoes 11, No. 1, 4-5, 2001.
18. S. Dhar, C.L. Talmadge, G.R. Long, and A. Tubis, "Multiple internal reflections in the cochlea and their effect on DPOAE fine structure," J. Acoust. Soc. Am. 112, 2282-2297, 2002.
19. C.L. Talmadge, A.Tubis, and G.R. Long, "Modeling otoacoustic emissions and related psychoacoustical measures in humans and other mammals," in Biophysics of the Cochlea: from Molecule to Man, edited by A. Gummer, et al.., World Scientific Publishing Co., 517-523, 2003.