Package mbrola: Information

MBROLA is a speech synthesizer based on the concatenation of diphones.
It takes a list of phonemes as input, together with prosodic information
(duration of phonemes  and a piecewise linear description of pitch),
and produces speech samples on 16 bits (linear), at the sampling
frequency of the diphone database.

It is therefore NOT a Text-To-Speech  (TTS) synthesizer, since it does
not accept raw text as input.  In  order to obtain  a full TTS system,
you need to use this synthesizer in combination with a text processing
system that produces phonetic and prosodic commands such as festival
or freespeech.