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Unformatted text preview: Department of Electrical and Computer Engineering Digital Speech Processing Homework No. 7 Problem 1 Linear prediction analysis is used to obtain an eleventhorder allpole model for a segment of voiced speech that was sampled at a rate of F S = 8000 sam ples/second. The system function of the model is: H ( z ) = G A ( z ) = G 1 11 X k =1 k z k = G 11 Y i =1 (1 z i z 1 ) Table 1 shows five of the roots of the eleventhorder prediction error filter, A ( z ). i  z i  z i (rad) 1 0.2567 2.0677 2 0.9681 1.4402 3 0.9850 0.2750 4 0.8647 2.0036 5 0.9590 2.4162 Table 1: Root locations of eleventhorder prediction error filter in the zplane. (a) Determine where the other six zeros of A ( z ) are located in the zplane. If you cannot precisely determine the pole locations, explain where the pole might occur in the zplane. (b) Estimate the first three formant frequencies (in Hz) for this segment of speech....
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 Fall '08
 Rabiner,L

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