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diff --git a/introduction.tex b/introduction.tex index 1fcf233..e9e88e4 100644 --- a/introduction.tex +++ b/introduction.tex @@ -84,6 +84,20 @@ The \mmbtools are composed of several software projects: \mbox{ODR-AudioEnc}, \mbox{ODR-PadEnc}, and other scripts, bits and pieces that are useful for the setup of a transmission chain. +\begin{figure}[h] + \centering + \smartdiagram[bubble diagram]{ + ODR-mmbTools, + ODR-DabMux, + ODR-DabMod, + ODR-PadEnc, + etisnoop, + ODR-AudioEnc + } + \caption{The family of ODR-mmbTools} + \label{fig:family_mmbTools} +\end{figure} + \subsubsection{ODR-DabMux} ODR-DabMux implements a DAB multiplexer that combines all audio and data inputs into an ETI output. It can be used off-line (i.e.~not real-time) to generate ETI @@ -131,5 +145,16 @@ This encoder is able to generate programme associated data that can be injected into ODR-AudioEnc. It supports DLS, reading from a file, and MOT Slideshow, where the slides are read from a folder. +\subsubsection{etisnoop} +Etisnoop is not used in the broadcasting chain directly, but is an analysis tool +for ETI, described in the ETSI standard~\cite{etsidabeti}. ODR-DabMux can write +an ETI file that can be analysed with etisnoop. The tool can be used to verify +the multiplex signalling, the presence of data in the subchannels, and it can +decode audio into files. + +Additionally, it can output statistics in YAML format, which is useful in +combination with an RTLSDR receiver and the \verb+dab2eti+ tool to monitor +transmissions. + % vim: spl=en spell tw=80 et |