Open Tube Real-Ear Gain Response
Check and Double Check – Open Tube, Part 2 Dilemma – Gain vs. Acoustic Feedback A previous posting presented a hearing aid fitting dilemma – one that is not generally discussed. One side presented information on a closed fit RIC showing that as the insertion depth increased, so did the high-frequency amplification – an expected advantage…
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Check and Double Check – Closed Fit, Part 1 In a previous blog I provided the graph in Figure 1 of an RIC (receiver-in-the-canal) hearing aid fitted with a closed coupler, showing that greater sound pressure resulted, especially in the high frequencies, as the fitting tip was inserted more deeply into the ear canal. These were…
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