Fourthly, it was also necessary to assess the reverberation time in order to
quantify the impact sound insulation of the pavement (without and with the corn
cob particleboard). Therefore, this measure was experimentally estimated in the
receiving room and its average values are shown in Fig. 7 and Table 3. Finally, it
was possible to quantify the impact sound insulation of the pavement based on
the above measures. The obtained results are presented in Fig. 8a and b for the original
and for the sound insulated pavement of the receiving room, respectively. This
information is complemented with the data displayed in Table 4. These data correspond
to the weightened impact sound insulation levels with the reverberation
time correction (L0ntw), for the two scenarios (without and with the panel), which
were calculated according to [27], and in which the contribution of each frequency
band under study for the final impact sound insulation index is defined.