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Publications

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Randall P Wagner (Fed)

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Displaying 1 - 17 of 17

Laser-based comparison calibration of laboratory standard microphones

August 30, 2021
Author(s)
Randall Wagner, Richard A. Allen, Qian Dong
A precision laser-based comparison calibration method for laboratory standard microphones is described that uses reference microphones calibrated by the pressure reciprocity method. Electrical drive current and diaphragm velocity are measured while the

NIST Hearing Aid Test Procedures and Test Data

March 1, 1994
Author(s)
Randall P. Wagner, E D. Burnett
A description is given of the hearing aid testing done for the Department of Veterans Affairs. Emphasis is given to the determination of the insertion frequency response using Fast Fourier Transform (FFT) techniques, but the other measurements entailed are

NIST Hearing Aid Test Procedures and Test Data

March 2, 1992
Author(s)
Randall P. Wagner
A description is given of the hearing aid testing done for the Department of Veterans Affairs. Emphasis is given to the determination of the insertion frequency response using Fast Fourier Transform (FFT) techniques, but the other measurements entailed are