## 3 Results
### Objective Results
Conversely, in the reflective condition (-R), significant differences (>JND) are present only for \(T_{\rm s}\) values. No significant differences can be observed for the combination of the listening position head 2 and source location S1 in both the reflective (-R) and absorptive (-A) conditions. The combination of the listening position head 2 and source location S2 presents significant differences (>JND) for _EDT_ only in both conditions (-R and -A). No significant differences can be observed for the combination of the listening position head 1 and source location S2 in both reflective (-R) and absorptive (-A) conditions. \({}^{*}\)_EDT_ and \(T_{30}\) differences (\(\Delta=\rm{(All-D)\times 100/All)}\) are given in [%]. \begin{table}
\begin{tabular}{c c c c c c c c c c c} \hline \hline  & & \multicolumn{2}{c}{_EDT \({}^{*}\) [s]_} & \multicolumn{2}{c}{\(T_{30}\) \({}^{*}\) [s]} & \multicolumn{2}{c}{\(C_{80}\) [dB]} & \multicolumn{2}{c}{\(D_{50}\) [\%]} & \multicolumn{2}{c}{\(T_{\rm s}\) [s]} \\ \hline  & **Mean** & **SD** & **Mean** & **SD** & **Mean** & **SD** & **Mean** & **SD** & **Mean** & **SD** \\ \hline  & **All-A** & 0.92 & 0.06 & 1.04 & 0.02 & 4.0 & 0.6 & 53.9 & 6.4 & 0.066 & 0.005 \\  & **All-R** & 2.57 & 0.10 & 2.76 & 0.06 & \(-\)2.3 & 0.6 & 25.2 & 3.8 & 0.182 & 0.008 \\  & **Df-R** & 2.53 & 0.10 & 2.75 & 0.08 & \(-\)2.3 & 0.5 & 25.8 & 4.2 & 0.179 & 0.007 \\  & **\(\Delta\)** & (1.6) & & (0.4) & & (0.0) & & (\(-\)0.6) & & (0.003) & \\  & **Dm-R** & 2.49 & 0.09 & 2.74 & 0.07 & \(-\)2.1 & 0.7 & 26 & 4.5 & 0.178 & 0.01 \\  & **\(\Delta\)** & (3.1) & & (0.7) & & (\(-\)0.2) & & (\(-\)0.8) & & (0.004) & \\  & **Dr-R** & 2.52 & 0.08 & 2.73 & 0.06 & \(-\)2.1 & 0.6 & 25.7 & 4.0 & 0.179 & 0.009 \\  & **\(\Delta\)** & (1.9) & & (1.1) & & (\(-\)0.2) & & (\(-\)0.5) & & (0.003) & \\  & **Df-A** & 0.99 & 0.06 & 1.10 & 0.02 & 3.3 & 0.7 & 50.7 & 6.4 & 0.072 & 0.005 \\  & **\(\Delta\)** & **(\(-\)7.6)** & & & **(\(-\)5.8)** & & (0.7) & & (3.2) & & (\(-\)0.006) & \\  & **Dm-A** & 1.00 & 0.05 & 1.10 & 0.02 & 3.5 & 0.6 & 51.0 & 6.4 & 0.072 & 0.005 \\  & **\(\Delta\)** & **(\(-\)8.7)** & & & **(\(-\)5.8)** & & (0.5) & & (2.9) & & (\(-\)0.006) & \\  & **Dr-A** & 0.98 & 0.06 & 1.08 & 0.02 & 3.6 & 0.7 & 51.7 & 6.8 & 0.07 & 0.006 \\  & **\(\Delta\)** & **(\(-\)6.5)** & & & (\(-\)3.8) & & (0.4) & & (2.2) & & (\(-\)0.004) & \\ \hline  & **All-A** & 0.97 & 0.07 & 1.05 & 0.03 & 3.8 & 0.8 & 53.8 & 7.0 & 0.067 & 0.006 \\  & **All-R** & 2.66 & 0.12 & 2.89 & 0.1 & \(-\)2.6 & 0.7 & 24.2 & 4.8 & 0.191 & 0.012 \\  & **Df-R** & 2.64 & 0.15 & 2.87 & 0.13 & \(-\)2.6 & 0.6 & 24.9 & 4.2 & 0.186 & 0.012 \\  & **\(\Delta\)** & (0.8) & & (0.7) & & (0.0) & & (\(-\)0.7) & & (0.005) & \\  & **Dm-R** & 2.64 & 0.12 & 2.90 & 0.13 & \(-\)2.6 & 0.7 & 24.7 & 5.0 & 0.187 & 0.013 \\  & **\(\Delta\)** & (0.8) & & (\(-\)0.3) & & (0.0) & & (\(-\)0.5) & & (0.004) & \\  & **Dr-R** & 2.63 & 0.12 & 2.88 & 0.11 & \(-\)2.4 & 0.8 & 25.1 & 5.0 & 0.186 & 0.012 \\  & **\(\Delta\)** & (1.2) & & (0.3) & & (\(-\)0.2) & & (\(-\)0.9) & & (0.005) & \\  & **Df-A** & 1.05 & 0.07 & 1.12 & 0.02 & 3.0 & 0.8 & 49.2 & 7.3 & 0.075 & 0.007 \\  & **\(\Delta\)** & **(\(-\)8.2)** & & & **(\(-\)6.7)** & & (0.8) & & (4.6) & & (\(-\)0.008) & \\  & **Dm-A** & 1.04 & 0.07 & 1.11 & 0.03 & 3.2 & 0.9 & 51.3 & 7.1 & 0.072 & 0.007 \\  & **\(\Delta\)** & **(\(-\)7.2)** & & & **(\(-\)5.7)** & & (0.6) & & (2.5) & & (\(-\)0.005) & \\  & **Dr-A** & 1.02 & 0.07 & 1.10 & 0.02 & 3.4 & 0.9 & 52.1 & 7.3 & 0.070 & 0.007 \\  & **\(\Delta\)** & **(\(-\)5.2)** & & & (\(-\)4.8) & & (0.4) & & (1.7) & & (\(-\)0.003) & \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Spatial mean values and overall standard deviation of reverberation time (\(T_{30}\)), early decay time (_EDT_), clarity (\(C_{80}\)), definition (\(D_{50}\)), center time (\(T_{\rm s}\)) in the eight conditions. Differences (\(\Delta=\rm{All-D}\)) with respect to the reference configurations All-A and All-R are given in brackets for each configuration (Df, Dm, and Dr). The differences above the JND have been highlighted in bold.