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Hearing Aid Performance Measurement Data and Hearing Aid Selection Procedures, Contract Year 1974

机译：助听器性能测量数据和助听器选择程序，合同年份1974年

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摘要

The Veterans Administration program for measuring and evaluating performance characteristics of hearing aids was developed in order to select a manageable group of instruments from among the models available on the consumer market. A total of 114 models were received from 19 manufacturers from which instruments were selected to be issued to veterans in the 1974 contract year. Aids were subjected to performance measurements by the National Bureau of Standards, and the results were transmitted to the Veterans Administration Auditory Research Laboratory for statistical and comparative analysis. A copy of the bid solicitation for contract year 1974 is included. A chart lists manufacturers, their models, types of aids, power categories, performance scores and the models selected for the contract year 1974. A list shows average gain, average maximum power output, and performance score for each model measured. Performance measurement data on each of three sample instruments for each model submitted is included.

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