1. A method for performing computer-aided speech synthesis of stored electronic text to form an analog speech signal, comprising: performing text analysis on the stored electronic text using predefined text analysis rules; forming a first sequence of phonetic units after performing the text analysis rules for the electronic text; testing whether the electronic text is contained in an electronic abbreviation lexicon; forming a second sequence of phonetic units if the electronic text is contained in the electronic abbreviation lexicon; testing whether the electronic text is contained in an electronic functional word lexicon; forming a third sequence of phonetic units if the electronic text is contained in the electronic functional word lexicon; forming a fourth sequence of phonetic units using an exception lexicon for any text of the stored electronic text upon which any of the foregoing forming steps were not applied; generating a prosody for the respective sequence of phonetic units using predefined prosody rules; and generating analog speech signals from the respective sequence of phonetic units and the prosody, wherein the phonetic units are stored in compressed form, and wherein at least some of the stored compressed phonetic units are decompressed before the formation of the respective sequence of phonetic units.