When the show in a tone audiometry every extra mile to be made, at some point will be reached with an intensity the listener the sound is uncomfortably loud. The intensity in which this occurs determines the uncomfortable loudness thresholds. In the figure below the hearing threshold (red) and uncomfortable loudness (black) indicated a good hearing.
The area between the threshold for a tone is heard and it just where it is perceived as uncomfortably loud, it's dynamic range. Another word for hear dynamic range span. In the figure above is shown with vertical blue arrows.
The area between the threshold for a tone is heard and it just where it is perceived as uncomfortably loud, it's dynamic range. Another word for hear dynamic range span. In the figure above is shown with vertical blue arrows.
Some hearing impaired is also the uncomfortable loudness threshold shift. At a much lower level of intensity they find unpleasant noises. This hearing as it were, two sides of a disadvantage: on the one hand by the hearing threshold and on the other hand, reduced by unpleasant, loudness threshold. Both provide for reducing the dynamic range of the horn span. In the picture below clearly shows that the arrows have become a lot shorter by shifting both thresholds.
The reduction of the dynamic range by shifting
the thresholds is also described as recruitment.
the thresholds is also described as recruitment.
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