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The quality of
the announcements by microphone differs very much, depending on the speaking
employee. The speakers may change with different shifts.
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Announcements
in different languages are often very difficult to understand by the recipients,
because the speakers do not have the desired skills of pronouncing the
announcements in a foreign language correctly.
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In our example
with 100 busses and 50 destinations in 3 languages there are 15.000 possible
combinations.
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