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Melody A2 Fit Range Chart To use this chart, you will need a copy of your hearing test (audiogram). If you do not have an audiogram, you will have to go to an audiologist to be tested as most family physicians do not have the test equipment to test your hearing. Each test point on your chart denotes the intersection of a frequency at which you were tested (the frequencies are marked as hertz rates, usually 125 - 8000Hz, along the top of the graph), and the loudness that the tester had to turn up the sound before you heard it (marked as decibels, usually 0 - 120dB, along the left hand side of the graph). If all of your test points on your audiogram fall within the shaded area of the graph on the left, then this hearing aid has sufficient amplification to rectify some or most of your hearing loss. If, instead of a chart, you just have two sets of numbers - a list of hertz rates and associated decibels you can also see if your hearing loss can be rectified by this hearing aid model. The following is just a sample:
The idea is the same: take each test point of hertz rate and associated decibel and plot it on the fit range chart on the left. If all the test points fall within the shaded area of the chart, then this hearing aid has sufficient amplification to rectify some or most of your hearing loss. |