10. Apparatus for recognizing a speech pattern as a string of predetermined reference words according to claims 1, 2, 3, 4, 5, 6, 7, 8, or 9 further characterized in that said reference word generating means further comprises: means responsive to said level identification signals for selecting a prescribed set of reference words for time registration in each reference word level.
45. Apparatus for recognizing a speech pattern as a string of predetermined reference words according to claim 10 further characterized in that said speech pattern and reference word acoustic feature signals are spectrally derived feature signals.