2. A device for generating the audio information of a set of characters comprising, a data-processor unit connected to a first memory for the storage of speech data and to a second memory for the storage of external input characters presented thereto, said data-processor unit comprising control means for forming, on the basis of said speech data in the first memory, a speech pattern corresponding to said input characters presented, a speech generator connected to the first memory and controlled by the data processor control means, wherein the data-processor unit comprises position determining means for determining the position of at least one letter of a word made up of characters presented and for introducing a modification in the speech pattern for said letter while maintaining its identity, said modification comprising a modification of a pitch component and/or a voice-characterizing component of the speech pattern.
2. A device for generating the audio information of a set of characters comprising, a data-processor unit connected to a first memory for the storage of speech data and to a second memory for the storage of external input characters presented thereto, said data-processor unit comprising control means for forming, on the basis of said speech data in the first memory, a speech pattern corresponding to said input characters presented, a speech generator connected to the first memory and controlled by the data processor control means, wherein the data-processor unit comprises position determining means for determining the position of at least one letter of a word made up of characters presented and for introducing a modification in the speech pattern for said letter while maintaining its identity, said modification comprising a modification of a pitch component and/or a voice-characterizing component of the speech pattern. 16. A device as claimed in claim 2, wherein said modification of a pitch component of the speech pattern comprises a lower pitch with respect to a mean pitch component of the speech pattern.