Information Technology Reference
In-Depth Information
ignore and can therefore very quickly become cumbersome: it is therefore advisable
to use it wisely.
That being said, driving - the main task to carry out when on board the vehicle -
requires very sustained visual attention. The tasks on board, secondary to driving,
must therefore be able to be carried out without impairing visual concentration to the
detriment of driving. This is why the auditory modality is,
in theory
, beneficial in
assisting the driver in the use of multimedia systems, particularly when they offer
increasingly varied functions. The benefit of these is also in the fact that they can be
transposed to other domains where the notions of control and shared attention are
also strategic, for example a plane cockpit or a control (or supervision) room.
Resorting to the auditory modality to help navigation in these systems therefore
meets a first priority challenge on board the vehicle: to ensure driving safety. The
second challenge, of an ergonomic nature, is to create a sound human-machine
interface that is easy to learn and use: it will need to be intuitive so that the driver
can appropriate it quickly, without the risk of his driving being affected when he is
using the multimedia system. Finally, a well designed sound interface, based on
quality sounds, will have the effect of contributing to the global perception of the
quality of the vehicle.
In view of this, we are interested in the audification of an embedded system like
an on-board computer (here called a
multimedia center
), allowing navigation in an
information structure that is a part of the vehicle (functioning, navigation, etc.),
includes personal data (music, photos, etc.) and mainly uses the auditory modality to
leave the driver with all the concentration required by the driving situation.
Integrated in a scientific approach, this study will focus on three main phases:
- analysis: includes a phase involving a state of the art from the field leading to
the definition of functional specifications and the choice of design method;
- creation: this phase is associated with a composer / sound designer, the
realization of sounds being carried out by implementation of the selected method;
- validation: this is a phase of evaluation of the result on the basis of
ad-hoc
methodology and in relation to the initial specifications.
This chapter presents this approach by giving details of the different stages of the
process. After a presentation of the general context and the issue specific to the
targeted application, the bibliographical study provides elements of state of the art
that have enabled us to define an original design model. Then, after a summary of
the approaches and methodological constraints relating to the experimentation in the
domain of sound perception, the evaluation results of the model are discussed. In the
conclusion, a discussion is opened regarding the general form of the results
obtained, as well as the different possible axes to extend this work.
