Reproduced a restaurant at one of E.T.S.A.B’s classrooms, we raised to mature the previous experiences though the incorporation of sound absorbent material in the ceilling that allowed us to reduce Rt values to 0.5 s without occupation. We performed this study with real occupation, variable in gender and identical in number and distribution to the previous experiencies. Apliying objectives and subjectives methods, we evaluted the improvement that this new treatment contributes to conversation’s intelligibility. We compared the results obtained in this new study with those obtained in the original experimental situation and theorical study developed in models previously validated.

Peer Reviewed