Voicing decision method and device for vocoder with very low...

Details Voicing decision method and device for vocoder with very low... Voicing decision method and device for vocoder with very low...

G - Physics

10

L

G10L 11/06 (2006.01) G10L 9/08 (1990.01)

Patent

CA 2083469

17 ABSTRACT OF THE DISCLOSURE The voicing decision method consists in: considering the evolution or progress of the speech signal over a determined number K of successive frames in assigning, at each current frame n, a score to each of the possible states of progress of the speech signal as a function of the rates of correlation of samples distributed in each frame; determining, in each current frame, the state of progress of the speech signal that has the maximum score to make a trace-back, from this state, to the most probable state of the frame n-K in passing successively through the states of maximum score of each preceding frame. Application to vocoders with low bit rates. FIGURE 1.

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