**Author details**

228 Stochastic Modeling and Control

**second conclusion** 

simulation (optimization).

**10. Conclusion** 

influence on the end results constraint.

It is important to mention how in acoustic room simulation, some additional objects such as cupboards, board, etc. were not taken into consideration since they have a marginal

**9. Acoustics optimization in multimedia classroom as an application -** 

The presented procedure of the analysis, simulation and measurement of the sample multimedia classroom, indicates a need for professional design and supervision of the performance of multimedia classrooms considering their ever-growing use from the point of view of long life learning (LL) that is lengthy and frequent stay in them. Such a statement is very important in the case of adult education since they tire more quickly (especially if they are strained in order to hear better and understand speech) than the younger population involved in lifelong learning, that is, in-service teacher training. This is also very important for handicapped groups (partially sighted people and people with partial hearing abilities) involved in long life learning. Furthermore, all classrooms used for foreign language learning should have strictly defined adequate acoustic conditions, also confirmed by this

Since it largely depends on the audience and their real possibilities of making assessments, subjective evaluation of room acoustic quality parameters is always difficult to make, as well as to accurately assess the subjective room quality. The resulting dispersion of the results shows that even within a group of people from similar socio-economic groups, education levels and technical knowledge, there are differences. However, since there is still a very good correlation between subjective and objective evaluation of the measured parameters, we can say that there is a very high probability that the subjective evaluation of room acoustic quality will be consistent with objectively measured parameters, and that the majority of people agree with that assessment. The presented procedure of the analysis, stochastic simulation and measurement of the sample multimedia classroom, indicates a need for professional design and supervision of the performance of multimedia classrooms considering their ever-growing use from the point of view of long LL that is lengthy and frequent stay in them. Such a statement is very important in the case of adult education since they tire more quickly (especially if they are strained in order to hear better and understand speech) than the younger population involved in lifelong learning, that is, inservice teacher training. This is also very important for handicapped groups (partially sighted people and people with partial hearing abilities) involved in long life learning. Furthermore, all classrooms used for foreign language learning should have strictly defined

adequate acoustic conditions, also confirmed by this simulation (optimization).

The suggestion for further development opens up a new area for improving the system of real simulation according to the effort in the organization of complex research. The system Vladimir Šimović, Siniša Fajt and Miljenko Krhen *University of Zagreb, Croatia* 
