Santiago Barreda
Assistant Professor, Department of Linguistics, UC Davis

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polezero [phonTools]

This function plots filter poles (x) and zeros (o) based on the given filter coefficients.



Code used to generate examples:

library (phonTools) par (mfrow = c(1,2), mar = c(4.1,4.1,1.1,1.1)) ## example of a single-zero preemphasis filter a = 1 b = c(1, -.94) polezero (b, a) #example of complex-pole formant-style filter a = c(1, -1.6, .75) b = c(1) polezero (b, a)