Audio, Audiology, and Music

Technology, Services, and Consultation

Products and Services

R-SPACETM Sound System

CoClearTM hearing-aid amplifier method

High-Precision Audio Engineering for Clinical CDs

Custom Audio Programming for Research

Writing and Editing Services

Audio Engineering for Music CDs

Music Performance

Lawrence J Revit / Revitronix
60 Murphy Road, Braintree, VT 05060
Tel (802) 728-9080

Curriculum Vitae

Curriculum Vitae — Lawrence J. Revit


Master of Arts, Northwestern University - Evanston, Illinois.

  • Research program in audiology and hearing impairment; (assisted Prof. Mead C. Killion - 4 years)
  • Master's thesis topic: improved repeatability of real-ear measurements (led to published paper).

8/76 - 12/79
Bachelor of Music, University of Miami School of Music - Coral Gables, Florida.

  • (cum laude honors; special service scholarship; dean's list; Golden Key Honor Society)
  • Major: music engineering technology; Minor: electrical engineering

Advanced seminars in Hearing Aid Research:

  • House Ear Institute (1990,2,4,8, 2002,4), presented posters;
  • NIDCD/VA (1995);
  • University of Iowa (1991,3), presented three papers;
  • VA/Vanderbilt University (1990);
  • Washington University (1989), invited guest.


Current Consultant in Audio, Audiology, and Acoustics - Braintree, VT.

Multinational clients; notably:

  • Academic Therapy Publications
  • Arizona State University
  • Children's Hospital Boston
  • Clarity / Plantronics, Inc.
  • Clarke School for the Deaf
  • Etymotic Research, Inc.
  • GN ReSound
  • Mayo Clinic
  • Planning Systems, Inc.
  • Siemens Audiologische Technik GmbH
  • Sound Innovations, Inc.
  • Washington University School of Medicine
  • Defined a sound processor for improving speech intelligibility over the telephone.
  • Co-created and sold a "real-world simulator" sound system for research and development of hearing devices and voice recognition systems, and published a trade paper about it.
  • Authored textbook chapters on real-ear and test-box measurements of hearing instruments.
  • Helped code a computer model of the middle ear.
  • Provided digital audio engineering services for creation of clinical hearing tests.
  • Installed and custom-programmed R-SPACE sound systems
  • Created custom audio programming for experimental research
  • Evaluated and outfitted audio test facility according to ANSI standards
  • Carried out microphone in-real-ear (MIRE) testing of hearing protection device

9/88 - 9/94

  • Applications Scientist - Frye Electronics, Inc. (Tigard, OR) and Etymonic Design, Inc. (London, ON), manufacturers of hearing and hearing-aid test equipment.
  • Defined software and hardware tools for the fitting of hearing devices.
  • Created user manuals; published scholarly papers and text chapters on measuring and fitting hearing aids.
  • Directed research projects and solved special problems.
  • Served professional relations through trade publications, presentations, and customer support.

4/88 - 9/88

  • Research and Development Engineer - Siemens Hearing Instruments (Piscataway, NJ), manufacturer of hearing aids.
  • Generated performance specifications for new instruments.
  • Helped to develop a programmable hearing aid.
  • Solved problems in testing, documentation, quality control, marketing and research.

9/83 - 6/87

    Laboratory and Teaching Assistant - Northwestern University (Evanston, IL), program in audiology & hearing impairment. Assistant to Mead C. Killion.
  • Developed and presented lectures and labs in hearing-aid electronics, earmolds, and hearing-aid testing; assisted in psychoacoustics laboratory.

Temporary employment during career change

  • Research and Development Technician - Etymotic Research
  • Assembled, tested, and documented electroacoustics research instruments.


  • Instructor and Laboratory Supervisor - Institute of Audio Research
  • Managed two electronics laboratories; presented courses in audio electronics and recording.


  • Research Affiliate - Massachusetts Institute of Technology, Research Laboratory of Electronics
  • Reviewed ongoing psychoacoustics research;
  • constructed experimental electromechanical devices;
  • participated in psychoacoustics experiments.


  • Recording Engineer and Studio Manager - Highlights from previous career:
  • Managed concert-hall recording studio and music-school sound services (3½ years);
  • Recorded Grammy Awards runner-up big-band jazz album;
  • Engineered and supervised audio crew for nationally broadcast tv quiz show.


Peer reviewer for scholarly journals

  • Ear and Hearing
  • The International Journal of Audiology
  • The American Journal of Audiology
  • The Journal of the Academy of Rehabilitative Audiology

Active member of:

  • ANSI working groups S3/WG48 (hearing aid specifications), S3/WG80 (real-ear measurements) and S3/WG81 (assistive listening device specifications), S12/WG11 (evaluation of hearing protection devices)
  • The American Academy of Audiology
  • The American Auditory Society
  • The Audio Engineering Society
  • The Independent Hearing Aid Fitting Forum (IHAFF - working to standardize fitting protocols)
  • Technical Advisory Board of CATV/6 (community-access television station)


  • Chasin M, Revit LJ. Musicians and hearing aid design. Hearing Review. 2009;16(2):10.
  • Revit LJ. What's so special about music? Hearing Review. 2009;16(2):12-19.
  • Revit LJ, Killion MC, and Conley CL, PhD. Developing and Testing a Laboratory Sound System That Yields Accurate Real-World Results. The Hearing Review, October 2007.
  • Revit L and Killion M. Evaluating real-world hearing aid performance in a laboratory. Podium paper; annual meeting of the American Auditory Society, March 2006.
  • Valente M, Revit L, Mispagel K. Evaluation of real-world directional performance. Podium paper; annual convention of the American Academy of Audiology, April, 2004.
  • Revit LJ, Killion MC, and Conley CL, PhD., Toward accurate assessment of real-world hearing aid benefit. The Hearing Review, August 2002.
  • Revit LJ. Real-ear measures. In: M. Valente, H. Hosford-Dunn, and R. Roeser (Eds.) Audiology; Treatment. New York, NY: Thieme, 2000.
  • Revit L. The circle of decibels: relating the hearing test, to the hearing aid, to the real-ear response. The Hearing Review, November 1997.
  • Revit LJ. Using earphone thresholds and real-ear measurements to estimate aided thresholds. Presented at ASHA 1996 Annual Convention, Seattle, WA, November 21, 1996.
  • Revit LJ. Relating the hearing mechanism, the hearing aid, and the earcanal: toward better-fitting hearing aids. Amplification symposium presented twice: at the 20th Annual Conference of Canadian Association of Speech Pathologists and Audiologists (CASLPA), Ottawa, April 1995; and at the 44th Annual Convention of the International Hearing Society, Washington, D.C., August 1995.
  • Revit LJ. The loud world: several ways of handling dynamic ranges. Presented at the 10th annual Seminars on Audition, Toronto, Ontario, February 25, 1995.
  • Revit LJ. Using coupler tests in the fitting of hearing aids. In M. Valente (ed.), Strategies for Selecting and Verifying Hearing Aid Fittings, New York, Thieme, 1994.
  • Revit LJ. Strategies for fitting non-linear hearing aids. Three-hour course presented to the Private Practice Audiologists of Atlantic Canada; Halifax, Nova Scotia, September 1994.
  • Revit LJ et al. Faculty member of the Jackson Hole Rendezvous, three-day seminar on the Independent Hearing Aid Fitting Forum protocol for fitting non-linear hearing aids; Jackson Hole, Wyoming, August, 1994.
  • Revit LJ. Real-ear probe-microphone measurements revisited; a practical tutorial on fundamental real-ear measurements. Hearing Review 1(2):19-21, 1994.
  • Revit LJ. Bilateral moderately-severe impairment (personal insight observation). Hearing Instruments 45(1):10-11, 1994.
  • Revit LJ. Hands-on workshop in real-ear techniques. Short course, Wisconsin Speech-Language-Hearing Association Convention, Stevens Point, May 1993.
  • Revit LJ. Advanced techniques in real-ear measurement. Full-day workshop, New Jersey Speech-Language-Hearing Association Convention, Atlantic City, April 1993.
  • Revit LJ. Two techniques for dealing with the occlusion effect. Hearing Instruments 43(12):16-18, 1992.
  • Killion MC and Revit LJ. CORFIG and GIFROC: real-ear to coupler and back. In G. Studebaker and I. Hochberg (eds.), Acoustical Factors Affecting Hearing Aid Performance, 2nd edition. Boston, Allyn and Bacon, 1992.
  • Fikret-Pasa S and Revit LJ. Individualized correction factors in the pre-selection of hearing aids. Journal of Speech and Hearing Research 35(2):384-400,1992.
  • Revit LJ. 2cc-coupler prescriptions based on real-ear measurements. Short course, California Speech-Language-Hearing Association Regional Conference, April 1992.
  • Revit LJ. New electroacoustics tests for signal-processing and multi-channel hearing instruments. Mini-seminar, California Speech-Language-Hearing Association Regional Conference, April 1992.
  • Revit LJ. Advanced techniques in real-ear measurement. Full-day seminar, Manhattan Eye, Ear, & Throat Hosp., March 1992.
  • Revit L. FONIX ANSI S3.22 Workbook. Frye Electronics, Inc., Tigard, OR, 1991.
  • Revit LJ and Fikret-Pasa S. Using REUR measurements to customize prescriptions and fittings. American Speech-Language-Hearing Association Convention, Atlanta, 1991.
  • Fikret-Pasa S and Revit LJ. Individual variability in the real ear-2cc coupler difference (RECD). American Speech-Language-Hearing Association Convention, Atlanta, 1991.
  • Revit LJ. Real-ear-unaided response (REUR) corrections in hearing aid prescriptions: the importance of maintaining a consistent sound-field reference. International Hearing Aid Conference, Iowa City, June 1991.
  • Revit LJ. New electroacoustic tests for hearing aids having non-linear signal processing. International Hearing Aid Conference, Iowa City, June 1991.
  • Fikret-Pasa S and Revit LJ. Real-ear-to-coupler level difference (RECD) corrections in hearing aid prescriptions: individual variations in occluded real-ear responses. International Hearing Aid Conference, Iowa City, June 1991.
  • Revit L. New tests for signal-processing and multichannel hearing instruments. Hearing Journal 44(5), 1991.
  • Revit LJ. Probe tube measures: issues of test signal. American Academy of Audiology Convention, April 1991
  • Revit L. A software program for calculating 2cc full-on gain and SSPL-90 targets. Hearing Instruments, 41(4), 1990.
  • Fikret-Pasa S and Revit LJ. Real-ear measurements before ordering; for better-fitting hearing aids. Wisconsin Speech-Language-Hearing Association Regional Conference, Madison, Wisconsin, April 1990.
  • Madory RD and Revit LJ. Electroacoustic analysis of state-of-the-art hearing aids. California Speech-Language-Hearing Association Regional Conference, November 1989.
  • Revit LJ. New uses of real-ear measurements for the selection of customized hearing aids. XXth International Congress of Audiology, Tenerife, October 1989.
  • Killion MC and Revit LJ. Insertion gain repeatability versus loudspeaker location: you want me to put my loudspeaker w h e r e? Ear and Hearing 8(5)Suppl, 1987.