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Additional technical information
Compression (settings 1 and 3)
Deterioration of the ability to hear quiet sounds as well as loud ones is
a typical symptom of old age. Compression compensates for these
volume differences by boosting the volume of quiet sounds and
reducing the volume of loud sounds if necessary.
Compression seems to put the speech in the foreground, making it
easier to understand.
Compression is self-regulating; once it has been activated, it is not
necessary to make any other settings.
Treble boost (settings 2 and 3)
Another typical age-related phenomenon is the deterioration of the
hearing with regard to high frequencies. However, high frequencies are
important for the intelligibility of speech.
The treble boost makes the speech clearer and easier to understand.
With the treble boost (settings 2 and 3), additional fine adjustment is
possible using the treble boost control
C on the rear of the trans-
mitter.
Function of the treble boost control
By means of the transmitter’s steplessly adjustable treble boost
control
C the audio signal is boosted as shown in the diagram.
The treble boost control
C allows you to select one of the curves
shown in the diagram below.
̈ Use a screwdriver to turn the treble boost
control
C to the left or right until the sound
can be heard very well.
The position “0” corresponds to a minimum
boost, the position “MAX” corresponds to a
maximum boost, and the control is factory-
preset to the medium position.
C
10
0.1 1 10
20
dB
kHz
“MAX”
“0”
Factory-preset
setting