from the NetBSD maintainer: This voice provides a Castilian Spanish male voice using a residual excited LPC diphone synthesis method. The lexicon is provided by a set of letter to sound rules producing pronunciation accents and syllabification. The durations, intonation and prosodic phrasing are minimal but are acceptable for simple examples. This voice can be activated via (voice_el_diphone) . WWW: http://www.cstr.ed.ac.uk/projects/festival/