Hearing Screening Online Training Program
A person with normal hearing should be able to hear intensities as low as 0 to 20 dB in the 250 through 8000 Hz range. The frequencies of 500, 1000, 2000, and 4000 Hz are critical for hearing and understanding speech sounds.
Examples of different sound intensities as expressed in dB:
180 dB: Rocket at take-off
**While decibels greater than or equal to 120 to 130 dB cause pain or discomfort in most people’s ears, some people will experience pain at sounds of 100-110 dB.
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