Report of American Otological Society Representative to the Committees on Audiometers, Hearing Aids, Acoustic Measurements and Terminology of the American Medical Association and the American Standards Association.Dr. Edmund Prince Fowler, New York.
The work during the past year has consisted primarily of the following: 1. Revision of the definitions relating to levels of intensity, pressure and velocity and the effect of standing waves. All these factors affect the measurement of hearing for sources of sound not in direct contact with the ear. 2. A new subcommittee is to study vibrations, including those affecting the vestibular mechanism. 3. The subcommittee on sound levels has proposed revision of the American Institute of Electrical Engineers' test code for the measurement of apparatus noise. 4. The problem of battery terminals for hearing aids has been taken over by the American Standards Association committee on dry cells and batteries. 5. The subcommittee on audiometers