Loop some number of samples of audio over and over.
-\subsection{Overlay}%
+\subsection{Overlay (Audio)}%
\label{sub: overlay}
\index{overlay audio}
This effect makes video tracks appears as a painting. It can be controlled by \textit{Radius} slider and \textit{intensity of colors} can be chosen as an option.
-\subsection{Overlay}%
+% Leave the Video and Audio parenthesis due to latex2html dual conflict
+\subsection{Overlay (Video)}%
\label{sub:overlay}
\index{overlay video}