This paper describes the BUCEADOR search engine, a web
server that allows retrieving. multimedia documents (text, audio, video)
in different languages. All the documents are translated into the user
language and are presented either as text (for instance, subtitles in video documents) or dubbed audio. The user query consist in a sequence of keywords and can be typed or spoken. Multiple Spoken Language Technologies (SLT) servers have been implemented, such as speech recognition, speech machine translation and text-to-speech conversion. The platform can be used in the four Spanish official (Spanish, Basque, Catalan and Galician) and in English.Peer ReviewedPostprint (published version