Abstract: Method for converting phonemes to written text and corresponding computer system and computer program. In languages having a low correspondence between sounds and letters, converting phonemes to letters is complex. The continual addition of neologisms, with an adapted pronunciation but with an original spelling makes the conversion even harder. The conversion based solely on phonetic dictionaries requires very extensive and permanently updated dictionaries. The method for converting phonemes to written text comprises: [a] a stage of reading a finite sequence of phonemes to be converted which form a word to be converted, [b] a stage of generating a plurality of possible words, [c] a stage of choosing one of said possible words as the correct word. So the problem is broken down into two steps and the most suitable strategy can be applied to each step.

Abstract: The subject of the invention is a voice recognition procedure which comprises: (a) a step of decomposition of a digitised voice signal into a plurality of fractions, (b) a step of representation of each of the fractions by means of a representative vector Xt, (c) a step of classification of the representative vectors Xt, which comprises two or more multistep binary tree residual vectorial quantisations. In the classification step a phonetic representation is associated to each representative vector Xt, allowing a sequence of phonetic representations to be obtained.