Research Resources

This section shares benchmarking and related research information from inside Starkey Hearing Technologies, including detailed methodology used in data collection.

Equivalent Input Noise (EIN)


The Equivalent Input Noise (EIN) of a hearing aid is the level of environmental input noise that is required to produce an output voltage that is identical to the voltage of the device's internal noise. If a hearing aid has an EIN that is too high, the noise may be audible to listeners with mild thresholds.


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