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Complex cepstrum

Source: R/dsp_detection.R
morie_dsp_complex_cepstrum.Rd

IFFT(log|X| + j * unwrap(angle(X))). Returns cepstrum and quefrency indices.

Usage

morie_dsp_complex_cepstrum(x)

Arguments

x

Numeric vector.

Value

List with cepstrum and quefrency.

References

Rangayyan & Krishnan (2015), Ch. 4, sec. 4.10; Oppenheim & Schafer (2010).