![](bg6.png)
In addition, five users could not realize whether the changes in the audio virtual
environment were due to their movements in the space or were part of the audio se-
quence. This misinterpretation of the user’s spatial position in combination with the
focus is currently under investigation.
Four users missed an explicit control channel for switching between different types
of sound presentation. Since the LISTEN systems aims at a complete immersion of
the users only through wireless headphones this issue will not be further pursued.
A main criticism in the evaluation was the use of stereotypes for content adapta-
tion. The people do not like to be clustered and classified by their personal informa-
tion consumption habits (fact oriented, emotional or overview oriented). The refined
system will provide stereotypes that represent the user’s moving styles like saunter-
ing, goal-driven or standing still, because these stereotypes have less social impact,
and are easy to detect and to revise.
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