Hearing Aid Selection and Fitting Tips Gleaned from Recent Research

The first thing I would like to talk about is the Acceptable Noise Level (ANL) test that was developed at the University of Tennessee, based on the research of Anna Nabelek dating back to 1991. For those of you who are not familiar with this test, here is a quick review of how it works: The test usually is conducted bilaterally in the sound field, not under earphones. You first determine the patient's most comfortable listening level (MCL) for continuous discourse. The standard material is a travelogue about Arizona. It's a loudness task, not a speech recognition task, so the actual speech material doesn't matter too much.

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