25. An apparatus for generating a transition signal as in claim 24 wherein said apparatus further comprises peak evaluation means for evaluating said transition signal to detect peaks therein by time-sampling said transition signal using a predetermined time interval and identifying as a peak level each maximum of said transition signal occurring in the middle of a said time interval and to thereby locate transitions in said voice signal.
25. An apparatus for generating a transition signal as in claim 24 wherein said apparatus further comprises peak evaluation means for evaluating said transition signal to detect peaks therein by time-sampling said transition signal using a predetermined time interval and identifying as a peak level each maximum of said transition signal occurring in the middle of a said time interval and to thereby locate transitions in said voice signal. 26. An apparatus for generating a transition signal as in claim 25 further comprising log circuit means for calculating the logarithms of said respective average power levels and said respective power levels, and wherein said first difference levels represent the differences between said respective logarithms, whereby the influence on said first difference levels of variations in emphasis from phoneme to phoneme of a particular speaker is minimized.