11. The system according to claim 10 , wherein said talk-back voice output unit outputs a voice which reads out, in the voice-recognized order, said partial character strings recognized by said voice recognition unit in a manner such that the partial character strings are delimited by silent intervals, as said talk-back voice.
10. A voice recognition and talk-back system comprising: a voice extracting unit configured to extract the user's voice in each of a plurality of articulation periods; a voice recognition unit configured to perform for the user's voice in each articulation period that was extracted by said voice extracting unit, and configured to set a voice-recognized character string for each articulation period as a partial character string; and a talk-back voice output unit configured to output a voice which reads out, in a voice-recognized order, the partial character strings recognized by the voice recognition unit in a manner such that the character string is delimited into each partial character string.