# UaVirBASE: A Public-Access Unmanned Aerial Vehicle Sound Source Localization Dataset
## 3 Experiments
### Results
\begin{table}
\begin{tabular}{c c c c c c c c c c c c} \hline \hline \multirow{2}{*}{**Feature**} & \multirow{2}{*}{\begin{tabular}{c} **Frequency** \\ **Sample Rate** \\ **[kHz]** \\ \end{tabular} } & \multirow{2}{*}{\begin{tabular}{c} **FFT** \\ **Size** \\ \end{tabular} } & \multirow{2}{*}{\begin{tabular}{c} **Hop** \\ **Length** \\ \end{tabular} } & \multirow{2}{*}{\
\begin{tabular}{c} **Extra** \\ **Parameters** \\ \end{tabular} } & \multicolumn{4}{c}{**MAE**} & \multicolumn{4}{c}{**RMSE**} \\ \cline{5-12}  & & & & & **a** & **b** & **c** & **d** & **a** & **b** & **c** & **d** \\ \hline \multirow{6}{*}{MFCC} & \multirow{2}{*}{44.1} & \multirow{2}{*}{1024} & \multirow{2}{*}{512} & \multirow{2}{*}{256} & n\_mfcc = 13 & \multirow{2}{*}{0.68} & n\_mcfc = 26 & \multirow{2}{*}{0.57} & \multirow{2}{*}{0.41} & \multirow{2}{*}{1.43} & \multirow{2}{*}{18.77} & \multirow{2}{*}{0.78} & \multirow{2}{*}{0.61} & \multirow{2}{*}{2.4} & \multirow{2}{*}{43.25} \\  & & & n\_mels = 64 & & & & & & & & & \\ \cline{2-12}  & \multirow{2}{*}{96} & \multirow{2}{*}{4096} & \multirow{2}{*}{2048} & n\_mfcc = 40 & \multirow{2}{*}{0.57} & \multirow{2}{*}{0.41} & \multirow{2}{*}{1.43} & \multirow{2}{*}{18.77} & \multirow{2}{*}{0.78} & \multirow{2}{*}{0.61} & \multirow{2}{*}{2.4} & \multirow{2}{*}{43.25} \\  & & & n\_mels = 256 & & & & & & & & & \\ \hline \multirow{2}{*}{Mel} & \multirow{2}{*}{16} & \multirow{2}{*}{512} & \multirow{2}{*}{256} & n\_mels = 64 & \multirow{2}{*}{0.54} & \multirow{2}{*}{0.41} & \multirow{2}{*}{1.15} & \multirow{2}{*}{13.09} & \multirow{2}{*}{0.76} & \multirow{2}{*}{0.66} & \multirow{2}{*}{1.7} & \multirow{2}{*}{31.45} \\  & & & & n\_mels = 128 & & & & & & & & \\ \cline{2-12}  & \multirow{2}{*}{44.1} & \multirow{2}{*}{1024} & \multirow{2}{*}{512} & n\_mels = 128 & \multirow{2}{*}{0.39} & \multirow{2}{*}{0.41} & \multirow{2}{*}{0.91} & \multirow{2}{*}{8.61} & \multirow{2}{*}{0.58} & \multirow{2}{*}{0.55} & \multirow{2}{*}{1.36} & \multirow{2}{*}{26.88} \\ \cline{2-12}  & & & & & & & & & & & & \\ \hline \multirow{2}{*}{STFT} & \multirow{2}{*}{44.1} & \multirow{2}{*}{1024} & \multirow{2}{*}{512} & n\_mels = 256 & \multirow{2}{*}{0.41} & \multirow{2}{*}{0.43} & \multirow{2}{*}{1.09} & \multirow{2}{*}{8.41} & \multirow{2}{*}{0.64} & \multirow{2}{*}{0.62} & \multirow{2}{*}{1.33} & \multirow{2}{*}{25.62} \\  & & & & & & & & & & & & \\ \hline \multirow{2}{*}{STFT} & \multirow{2}{*}{44.1} & \multirow{2}{*}{1024} & \multirow{2}{*}{512} & n\_mels = 256 & \multirow{2}{*}{0.59} & \multirow{2}{*}{1.08} & \multirow{2}{*}{11.08} & \multirow{2}{*}{0.79} & \multirow{2}{*}{0.85} & \multirow{2}{*}{1.92} & \multirow{2}{*}{29.27} \\  & & & & & & & & & & & \\ \cline{2-12}  & \multirow{2}{*}{96} & \multirow{2}{*}{4096} & \multirow{2}{*}{2048} & n\_mels = 256 & \multirow{2}{*}{0.45} & \multirow{2}{*}{0.48} & \multirow{2}{*}{1.18} & \multirow{2}{*}{11.18} & \multirow{2}{*}{0.61} & \multirow{2}{*}{0.65} & \multirow{2}{*}{1.74} & \multirow{2}{*}{30.89} \\ \cline{2-12}  & & & & & & & & & & & \\ \hline \multirow{2}{*}{
\begin{tabular}{c} \end{tabular} } & \multirow{2}{*}{16} & \multirow{2}{*}{512} & \multirow{2}{*}{256} & n\_mels = 128 & \multirow{2}{*}{0.62} & \multirow{2}{*}{0.59} & \multirow{2}{*}{1.14} & \multirow{2}{*}{10.95} & \multirow{2}{*}{0.87} & \multirow{2}{*}{0.87} & \multirow{2}{*}{1.73} & \multirow{2}{*}{29.53} \\  & & & & & & & & & & & \\ \cline{2-12}  & \multirow{2}{*}{96} & \multirow{2}{*}{4096} & \multirow{2}{*}{2048} & n\_mels = 256 & \multirow{2}{*}{0.45} & \multirow{2}{*}{0.48} & \multirow{2}{*}{1.18} & \multirow{2}{*}{11.18} & \multirow{2}{*}{0.61} & \multirow{2}{*}{0.65} & \multirow{2}{*}{1.74} & \multirow{2}{*}{30.89} \\ \hline \hline \end{tabular}
\end{table} 
Table 4: Results for selected features. Analyzing the results presented in the table, it becomes evident that, in most cases, using 64 Mel coefficients resulted in the worst performance. This suggests a lower number of Mel coefficients may not capture sufficient spectral information to achieve optimal results.