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 Expert  714644

Expert in Auditory Bioengineering, Sensory Aids, Hearing Loss, Passive & Active Protectors

Available for your Consulting and Expert Witness Needs

California (CA)
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness Market Research

Summary of Expertise:

Listed with other top experts in: 

Expert's main expertise lies in applying the combination of hearing science, audiology, and electrical engineering to the functional design of devices for the normal or impaired ear. This includes research on speech processing to improve understanding by the hearing impaired; design, selection, and fitting of hearing aids; hearing conservation through passive and active protectors and training of personnel; and improvement in signal-to-noise ratio in communications equipment.

hearing aid




hearing loss



Expert is a member of the ANSI (American National Standards Institute) Working Group S3/WG48 on Hearing Aids, which continually revises Standard ANSI S3.22, "American National Standard: Specification of Hearing Aid Characteristics" (most recent revision - 2003).



American National Standards Institute

Expert has had past experience and has continuing interest in the design and deployment of sensory aids for the deaf, blind, and deaf-blind.

sensory aid

Expert has had some success in resolving technical as well as management communication difficulties between interacting groups and individuals in industrial, academic, and clinical settings.

management guidance

Expert has done research on cochlear neurophysiology, particularly electric volume conduction effects on the transduction process,and has continuing interest in active cochlear processes, the role of outer and inner hair cells and efferents.

auditory physiology

At UCSF, Expert did research on rehabilitation of the profoundly hearing impaired, and fit hearing aids on patients who were otherwise candidates for cochlear implants. He chaired the Research Advisory Committee for the Helen Keller Center for Deaf-Blind Youths and Adults and investigated tactual communication schemes for the deaf.

He has extensive older experience in electronic design, manufacturing and field engineering.




electronics engineering


cochlear implant

Show Secondary and Basic Areas of Expertise
Expert may consult nationally and internationally, and is also local to the following cities: San Jose, California;  San Francisco, California;  Sacramento, California;  Oakland, California;  Stockton, California;  Fremont, California;  Santa Rosa, California;  Hayward, California;  Sunnyvale, California;  and Concord, California.

Year   Degree   Subject   Institution   Honors
1980   MA   Audiology   University of Iowa  
1970   PhD   Sensory Systems   University of California - L.A.   National Institutes of Health Special Fellow; "Distinction" on Ph.D. examination
1964   ME   Electrical Engineering   Yale University  

Work History:
Years   Employer   Department   Title   Responsibilities

1979 to







He conducts independent research and consulting in audiology and engineering. Examples are work for a developer of integrated circuits for the hearing aid industry, and for a variety of clients including component manufacturers, researchers and consumers, ranging in size from individuals and small nonprofits to Fortune 500 companies. Until 2001 he practiced Hearing Aid Dispensing and Audiology as The Hearing Center in Redwood City, CA.

1978 to 1979


Univ. of Cal.


Dept. of Otolaryngology




He did research on rehabilitation of the profoundly hearing impaired.

1972 to 1975


Committee on Prosthetics R&D


National Academy of Sciences


Senior Staff Officer


Coordinated research, development and clinical evaluation of communication aids for the deaf, blind and multiply handicapped. Organized workshops, panels, meetings, site visits and proposal reviews, and prepared associated reports. Surveyed ongoing projects in U.S. and abroad, developed census information for various impairments, and provided information exchange.

1964 to 1967


Jet Propulsion Laboratory


Space Flight Operations


Research Engineer


Systems engineering, project management and coordination.

1959 to 1964


Epsco, Inc.



Project Manager/Supervisory Engineer


Design, development and field checkout of Navy and NASA electronic and computer equipment.

1957 to 1959


Intelligent Machines Research Corporation



Field Engineer


Checkout, test and field trials of optical reading machines, resulting in successful commercial use.

Career Accomplishments:

He is a member of the Acoustical Society of America, the American Auditory Society, and the International Society of Audiology. Past memberships include the American Academy of Audiology, American Speech-Language-Hearing Association, California Academy of Audiology, the Bay Area Audiology Group, and the Institute of Electrical and Electronics Engineers. He was on the Research Advisory Committees for the Helen Keller Center for Deaf-Blind Youths and Adults (Chairman) and the Gallaudet College Rehabilitation Engineering Center


Former California licenses in Audiology and Hearing Aid Dispensing


Expert set a record at Epsco in electronic equipment reliability through engineering and project management. He had Public Health Service Special Fellowships at UCLA and the University of Iowa.

Publications and Patents Summary

He has more than 15 publications in audiology, hearing science and hearing aids.

Selected Publications and Publishers  
 - American Auditory Society  
 - Healthline, Mosby-Year Book, Inc.  
 - CA Conference  
 - Audiology  
 - Journal of the Acoustical Society of America  

Consulting Services:
Selected Consulting Examples:
  • He worked with The Engineering Consortium, a developer of integrated circuits for the hearing aid industry: Design of programs used to specify electro-acoustic characteristics in multi-memory hearing aid circuits, screen displays that are user-friendly to fitters, tests for speech quality, and hearing-aid programming schemes for semi-skilled dispensers.
  • He advised a major battery manufacturer on technical and marketing aspects of hearing aid batteries.
  • He advised a hearing aid component manufacturer on contact bounce in a switch.
  • He provided information to a venture capital firm about a proposed new hi-tech hearing aid.
  • He advised a major manufacturer on compression to be used in FAA headsets.
Recent Client Requests:
  • Expert in hearing aids for consulting on market opportunities, device variations and manufacturers.
  • Expert for consulting on acoustic design and materials used therein.
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Expert Witness Experience Summary:
He has advised clients preparing for liability court cases.
Recent Litigation Client Requests:
  • Expert witness for consulting on audio log and neurology for air force base in defense case.
  • Hearing aid expert for consulting on common difficulties and problems associated with usage.
  • Expert in public address systems for consulting on sufficiency of speakers in train stations.
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.

International Experience:
Years   Country / Region   Summary
1954 to 1956   Germany   RCA Service Corporation, Camden, NJ. 1954-1956. Field Engineer at U.S. Army Signal School in Germany: Technical adviser; solved repair problems on tactical Signal Corps and airborne communication, navigation, teletype and radar equipment. Supervised foreign language instruction of NATO students. Organized “crash” course in new tactical microwave equipment; trained instructors, wrote all course material, taught students and supervised field problems.
1956 to 1957   Japan   He provided liaison between U.S. Signal Corps and Japanese manufacturers of electronic equipment.

Language Skills:
Foreign Language   Description
German   Expert speaks, reads and writes German.
French   He reads and somewhat speaks French.

Market Research:
He has worked in the electronics industry and is especially familiar with manufacturers of hearing aids and their components. He can be of help in interpreting marketing claims.

Click the green button above to contact Expert for a free initial screening call regarding your marketing research, industry research, and company research needs.  For research needs involving multiple experts or secondary research, a Research Director can be assigned to coordinate the work into a custom report for you as a potentially quicker and more cost effective alternative to doing this work yourself or hiring a boutique consultancy.  Remember, your initial screening call to speak with Expert is free.

Additional Skills and Services:

He has made numerous presentations to clinicians, engineers, students and the public on hearing loss and hearing aids; he developed and taught a course on military electronic communication equipment.

Supplier and Vendor Location and Selection

Expert is available for consultation and vendor selection for hearing aids and other communication aids for the hearing impaired.

Other Skills and Services

Expert has had some success in resolving technical as well as management communication difficulties between interacting groups and individuals in industrial, academic, and clinical settings.


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