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step

System object: dsp.LPCToCepstral
Package: dsp

Cepstral coefficients from columns of input LPC coefficients

Syntax

CC = step(H,A)
CC = step(H,A,P)

Description

    Note:   Starting in R2016b, instead of using the step method to perform the operation defined by the System object™, you can call the object with arguments, as if it were a function. For example, y = step(obj,x) and y = obj(x) perform equivalent operations.

CC = step(H,A) computes the cepstral coefficients, CC, from the columns of input linear prediction coefficients, A. The object assumes the prediction error power is 1.

CC = step(H,A,P) when you set the PredictionErrorInputPort property to true, computes the cepstral coefficients, CC, from the columns of input linear prediction coefficients, A. This conversion uses P as the prediction error power.

    Note:   H specifies the System object on which to run this step method.

    The object performs an initialization the first time the step method is executed. This initialization locks nontunable properties and input specifications, such as dimensions, complexity, and data type of the input data. If you change a nontunable property or an input specification, the System object issues an error. To change nontunable properties or inputs, you must first call the release method to unlock the object.

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