13. An aural similarity measuring server comprising: an input/output interface adapted for communication with one or more remote user terminals and further adapted to receive an input text; a data store in which is stored a plurality of reference texts; and a processor adapted to a) convert the input text into a string of phonemes, b) to adjust the phoneme string of the input text and a phoneme string of a reference text from said data store so that the two phoneme strings are equal in length, c) to assign a similarity score to the reference text representative of the similarity of the two phoneme strings, and d) to repeat steps b) and c) for at least one further reference text from said data store, wherein said input/output interface is further adapted to output a plurality of reference texts to which similarity scores have been assigned and their respective assigned similarity scores.
13. An aural similarity measuring server comprising: an input/output interface adapted for communication with one or more remote user terminals and further adapted to receive an input text; a data store in which is stored a plurality of reference texts; and a processor adapted to a) convert the input text into a string of phonemes, b) to adjust the phoneme string of the input text and a phoneme string of a reference text from said data store so that the two phoneme strings are equal in length, c) to assign a similarity score to the reference text representative of the similarity of the two phoneme strings, and d) to repeat steps b) and c) for at least one further reference text from said data store, wherein said input/output interface is further adapted to output a plurality of reference texts to which similarity scores have been assigned and their respective assigned similarity scores. 18. An aural similarity measuring server as claimed in claim 13 , wherein the processor is adapted to identify aligned phonemes which differ; to allocate predetermined phoneme scores for each pair of differing aligned phonemes; and to summing the individual phoneme scores to thereby assign a score to the reference text.