Max. Output

  • Max. Output (Ear simulator/2cc coupler)
    The output is the amount of Sound Pressure Level (in dB SPL) produced by a hearing aid. It includes the incoming sound plus the gain added by the hearing aid.

    The output is measured with either a calibrated 2cc coupler (HIT) or right in the patient’s ear canal (REM). The input stimulus can be “sweep” of tones across the frequency range of the equipment, or specialized stimuli like chirps or artificial speech-like stimuli. Hearing aid manufacturers are required to publish the results of these test to audiologists and to provide them as inserts with the packaging.

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