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<chapter id="introduction" xmlns:xi="http://www.w3.org/2003/XInclude">
  <title>Introduction</title>

  <para>Parlatype (that is libparlatype) is the core library for
  the Parlatype program, a basic audio player intended for speech transcription.
  The library is published separately as it might be useful for other applications
  as well.</para>

  <para>PtPlayer is the core GStreamer backend that can be used as an audio
  player. PtWaveviewer is a GtkWidget to show a wave form and uses PtWaveloader
  to extract the wave form from a given file.</para>

  <para>Parlatype is stable. That means that the library is versioned,
  API changes are documented, however, it changes frequently.</para>

  <para>The library versioning is decoupled from release versions. The current
  release is &version;, the API version is &apiversion; (for GObject introspection) and the
  library’s soname is &soname;.</para>
</chapter>
