Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Audiometric earphone calibration using the IEC 303 reference coupler: a cautionary note.

T R Sherwood, M S Shipton

    British Journal of Audiology
    |February 1, 1987
    PubMed
    Summary

    Condenser microphone diaphragms are fragile. Leaving protective grids on microphones during audiometer calibration can introduce significant errors, impacting measurement accuracy.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    Recent changes in audiometric standards.

    British journal of audiology·1989
    Same author

    A standard determination of paired air- and bone-conduction thresholds under different masking noise conditions.

    Audiology : official organ of the International Society of Audiology·1982
    Same author

    Audiometric zero for air conduction. A verification and critique of international standards.

    Audiology : official organ of the International Society of Audiology·1981
    Same author

    Air-radiated sound from bone vibration transducers and its implications for bone conduction audiometry.

    British journal of audiology·1980

    Area of Science:

    • Acoustics
    • Metrology
    • Audio Engineering

    Background:

    • Condenser microphone diaphragms are delicate and typically protected by grids.
    • Microphone protection is often maintained even during audiometer calibration, contrary to standards.

    Purpose of the Study:

    • To investigate the impact of protective grids on microphone diaphragms during audiometer calibration.
    • To quantify the errors introduced by using grids with the IEC 303 reference coupler.

    Main Methods:

    • Experimental analysis of two specific protective grids.
    • Measurement of calibration errors using the IEC 303 reference coupler with and without grids.

    Main Results:

    • The presence of protective grids was found to cause errors in audiometer calibration.
    • The magnitude of these errors was quantified for two distinct grid types.

    Conclusions:

    • Protective grids on condenser microphones can lead to inaccuracies in audiometer calibration.
    • Adherence to standards, which requires exposed diaphragms, is crucial for precise measurements.

    Related Experiment Videos