lpc2cep: LPC to cepstra conversion
In tuneR: Analysis of Music and Speech

lpc2cep

R Documentation

LPC to cepstra conversion

Description

Convert the LPC coefficients in each column of a into frames of cepstra.

Usage

lpc2cep(a, nout = nrow(a))

Arguments

`a`	Matrix of LPC coefficients.
`nout`	Number of cepstra to produce.

Value

Matrix of cepstra (one column per time frame).

Author(s)

Sebastian Krey krey@statistik.tu-dortmund.de

References

Daniel P. W. Ellis: https://www.ee.columbia.edu/~dpwe/resources/matlab/rastamat/

Examples

  testsound <- normalize(sine(400) + sine(1000) + square(250), "16")
  pspectrum <- powspec(testsound@left, testsound@samp.rate)
  aspectrum <- audspec(pspectrum, testsound@samp.rate)
  lpcas <- dolpc(aspectrum$aspectrum, 8)
  cepstra <- lpc2cep(lpcas)

tuneR documentation built on May 29, 2024, 11:28 a.m.