7. A speech recognition apparatus as claimed in claim 6, characterized in that the output means displays an unrecognizable-sound indicator if the best match score for the current sound is worse than the recognition threshold score for the current sound.
7. A speech recognition apparatus as claimed in claim 6, characterized in that the output means displays an unrecognizable-sound indicator if the best match score for the current sound is worse than the recognition threshold score for the current sound. 8. A speech recognition apparatus as claimed in claim 7, characterized in that unrecognizable-sound indicator comprises one or more question marks.