In the last decade intensive phonetic research has been going on in Hungary in the field of speech acoustics at the Phonetics Laboratory of Linguistics Institute of the Academy of Science. The succesful results from 1979-1981 formed the basis for the development of text-to-speech (TTS) synthesis techniques (1,2). A general system philosophy has been developed and used as a basis of text to speech conversion on many languages. The MULTIVOX system can be easily adopted to different languages. The conversion programs, data and rules for one language need a maximum of 32 kbytes. The adoptation process -depending on the new language- takes about 1-3 months. Besides the languages mentioned, the adoptation of Spanish and Portuguese is in progress. MULTIVOX is designed to use the Philips PCF 8200 formant synthesizer.