Measurement of the supplied loudness perception
with natural signals
Loudness perception plays a decisive role in hearing aid fitting. Quiet signals must be amplified so that the signals can be perceived again. Loud signals need to be amplified less so that loud signals are not perceived as unpleasantly loud. The revoloud software offers a measurement method that can be used to determine the loudness perception of a person with hearing aids compared to people with normal hearing.
revoloud..
.. is a method that determines the loudness perception of an individual person in comparison to people with normal hearing.
.. can be used to test the effect of hearing aid fitting on individual loudness perception.
Functionality
To carry out a measurement, the test person is presented with 60 natural signals via a loudspeaker. The perceived loudness of the signals is rated on an 11-point scale from “not heard” to “extremely loud”. This involves testing 12 signal categories, which are made up of two dimensions: test level (“quiet”, “medium”, “loud”) and frequency range (“low”, “mid”, “high” and “broadband”).
At the end of the measurement, the result is presented in the form of a loudness map, which describes the loudness perception in the 12 categories in comparison to people with normal hearing by using different colors. The loudness map shows the results with colored fields for the frequency ranges low (200-920 Hz), mid (920-2,300 Hz), high (2.3-6.4 kHz) and for broadband signals for the levels 50 dB (quiet), 65 dB (medium) and 80 dB (loud).
Help your customers to hear even better..
.. and start now with revoloud!
References
Exter M, Jansen T, Hartog L, Oetting D. Development and Evaluation of a Loudness Validation Method With Natural Signals for Hearing Aid Fitting. Trends in Hearing. Manuscript in revision.
