I was looking for a simple text-to-speech (TTS) program similar
to the `say' command available on Mac OS X. I tried to install
the `festival' package but it appeared to require components of
the X Window system, which I do not have installed.
The `flite' package is based on festival, but designed to be
smaller and faster. It currently comes with a low-quality voice,
but the developers are planning to improve this in future. The
command can be run with a text file as an argument, or with two
arguments: the first being a text file and the second the name
of a WAV file to write to. Output can also be piped to flite.