8. An apparatus for reporting speech recognition failures, the apparatus comprising: a speech recognizer for recognizing speech from speech data; a speech recognition failure determination unit for receiving speech data, determining whether the speech data is compatible with a speech recognition based on a combination of check results for a plurality of speech recognition failures for the speech data, ascertaining a dominant speech recognition failure reason of a plurality of speech recognition failure reasons according to the check results when the speech data is incompatible with the speech recognition, and outputting the ascertained dominant speech recognition failure reason; and a control unit for controlling the dominant speech recognition failure reason output when the speech recognition failure occurs and accepting the speech recognition result when the speech recognition failure does not occur.
8. An apparatus for reporting speech recognition failures, the apparatus comprising: a speech recognizer for recognizing speech from speech data; a speech recognition failure determination unit for receiving speech data, determining whether the speech data is compatible with a speech recognition based on a combination of check results for a plurality of speech recognition failures for the speech data, ascertaining a dominant speech recognition failure reason of a plurality of speech recognition failure reasons according to the check results when the speech data is incompatible with the speech recognition, and outputting the ascertained dominant speech recognition failure reason; and a control unit for controlling the dominant speech recognition failure reason output when the speech recognition failure occurs and accepting the speech recognition result when the speech recognition failure does not occur. 9. The apparatus as claimed in claim 8 , further comprising: a speech recognition failure check unit for determining the plurality of speech recognition failures for the speech data and outputting the check results for the plurality of speech recognition failures.