Method and an arrangement for the segmentation of speech

Details Method and an arrangement for the segmentation of speech Method and an arrangement for the segmentation of speech

1986-02-04

1992-04-28

Shaw, Dale M.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

381 41, G10L 708, G10L 702

Patent

active

051094185

ABSTRACT:
In a method of and an apparatus for the segmentation of speech, an acoustic speech signal is converted into N signals S.sub.i (f), each signal pertaining to a time interval i of N successive time intervals (1.ltoreq.i.ltoreq.N). For successive time intervals i a function c.sub.ij (FIG. 7) is then derived which is a measure of the agreement between the signals in the time intervals i and j. The middle m.sub.i of the pertaining function C.sub.ij is determined for each time interval i and those values i are determined which at least approximately correspond to zero-axis crossings with the same sign in a function d.sub.i (see FIG. 3b), d.sub.i indicating the difference between m.sub.i and i. The signal segmented in this way can be used for the derivation of diphones so that a library of diphones can be built up (see FIG. 1), or it can be used for the recognition of the speech utterance (see FIG. 2).

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