# Effective Dereverberation with a Lower Complexity at Presence of the Noise
## 4 Experiments and Evaluation
### Analysis and Comparison of the Test Results
#### 4.3.3 Performance Comparison with Reference Methods
\begin{table}
\begin{tabular}{c c c c c c c} \hline \hline \(T_{60}\) **(ms)** & **100** & **400** & **500** & **600** & **700** & **800** \\ \hline \multicolumn{6}{c}{PESQ} \\ \hline unprocessed & 2.24 & 2.32 & 2.24 & 2.18 & 2.12 & 1.97 \\ ISCLP & **2.73** & 2.59 & 2.53 & 2.47 & 2.42 & 2.36 \\ WPE & 2.30 & 2.51 & 2.54 & **2.55** & **2.56** & **2.55** \\ proposed & 2.54 & **2.61** & **2.58** & 2.53 & 2.48 & 2.45 \\ proposed-kron & 2.51 & 2.58 & 2.52 & 2.45 & 2.39 & 2.34 \\ \hline \multicolumn{6}{c}{STOI} \\ \hline unprocessed & 0.82 & 0.76 & 0.74 & 0.72 & 0.70 & 0.69 \\ ISCLP & **0.85** & 0.79 & 0.78 & 0.77 & 0.76 & 0.75 \\ WPE & 0.81 & **0.80** & **0.80** & **0.80** & **0.80** \\ proposed & 0.81 & 0.79 & 0.79 & 0.78 & 0.77 & 0.77 \\ proposed-kron & 0.81 & 0.78 & 0.77 & 0.76 & 0.74 & 0.73 \\ \hline \end{tabular}
\end{table} 
Table 4: Comparison of the test results at 10 dB for babble noise. (The bold in the table indicates the best result). \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline \(T_{60}\) **(ms)** & **100** & **400** & **500** & **600** & **700** & **800** \\ \hline \multicolumn{6}{c}{PESQ} \\ \hline unprocessed & 1.85 & 2.08 & 2.06 & 2.03 & 2.00 & 1.97 \\ ISCLP & **2.41** & **2.41** & 2.38 & 2.34 & 2.30 & 2.26 \\ WPE & 1.90 & 2.17 & 2.20 & 2.23 & 2.24 & 2.25 \\ proposed & 2.15 & 2.38 & **2.39** & **2.37** & **2.34** & **2.31** \\ proposed-kron & 2.14 & 2.37 & 2.35 & 2.31 & 2.28 & 2.23 \\ \hline \multicolumn{6}{c}{STOI} \\ \hline unprocessed & 0.73 & 0.72 & 0.71 & 0.69 & 0.68 & 0.66 \\ ISCLP & **0.79** & **0.76** & **0.75** & **0.75** & 0.74 & 0.73 \\ WPE & 0.72 & 0.75 & **0.75** & **0.75** & **0.75** & **0.75** \\ proposed & 0.75 & **0.76** & **0.75** & **0.75** & 0.74 & 0.74 \\ proposed-kron & 0.75 & 0.75 & 0.74 & 0.73 & 0.72 & 0.71 \\ \hline \multicolumn{6}{c}{CD (dB)} \\ \hline unprocessed & 5.57 & 5.22 & 5.33 & 5.45 & 5.57 & 5.68 \\ ISCLP & 6.42 & 7.07 & 7.15 & 7.21 & 7.28 & 7.34 \\ WPE & **5.39** & **4.87** & **4.82** & **4.80** & **4.79** & **4.78** \\ proposed & 6.39 & 6.74 & 6.68 & 6.64 & 6.60 & 6.59 \\ proposed-kron & 5.59 & 6.01 & 6.00 & 6.00 & 6.00 & 6.02 \\ \hline \multicolumn{6}{c}{SIR (dB)} \\ \hline unprocessed & **14.13** & \(-\)5.48 & \(-\)6.53 & \(-\)7.26 & \(-\)7.80 & \(-\)8.21 \\ ISCLP & 9.38 & **\(-\)1.02** & **\(-\)1.62** & **\(-\)2.03** & **\(-\)2.29** & **\(-\)2.49** \\ WPE & 6.76 & \(-\)1.85 & \(-\)2.92 & \(-\)3.75 & \(-\)4.44 & \(-\)5.02 \\ proposed & \(-\)2.19 & \(-\)6.82 & \(-\)6.83 & \(-\)6.69 & \(-\)6.57 & \(-\)6.41 \\ proposed-kron & \(-\)3.32 & \(-\)8.03 & \(-\)8.06 & \(-\)7.94 & \(-\)7.87 & \(-\)7.71 \\ \hline \multicolumn{6}{c}{fwSegSNR (dB)} \\ \hline unprocessed & 3.83 & 4.71 & 4.68 & 4.59 & 4.49 & 4.39 \\ ISCLP & **5.63** & 3.85 & 3.34 & 3.16 & 3.02 & 2.88 \\ WPE & 4.13 & **5.14** & **5.24** & **5.29** & **5.31** & **5.32** \\ proposed & 4.12 & 4.25 & 4.24 & 4.23 & 4.20 & 4.14 \\ proposed-kron & 4.63 & 4.94 & 4.94 & 4.90 & 4.84 & 4.76 \\ \hline \end{tabular}
\end{table} 
Table 3: Comparison of the test results at 5 dB for babble noise. (The bold in the table indicates the best result).