powspec: Powerspectrum

In tlevine/tuneR: Analysis of music and speech

Description

Compute the powerspectrum of the input signal. Basically output a power spectrogram using a Hamming window.

Usage

powspec(x, sr = 8000, wintime = 0.025, steptime = 0.01, dither = FALSE)

Arguments

x	Vector of samples.
sr	Sampling rate of the signal.
wintime	Window length in sec.
steptime	Step between successive windows in sec.
dither	Add offset to spectrum as if dither noise.

Value

Matrix, where each column represents a power spectrum for a given frame and each row represents a frequency.

Author(s)

Sebastian Krey [e-mail]

References

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

See Also

specgram

Examples

  testsound <- normalize(sine(400) + sine(1000) + square(250), "16")
  pspectrum <- powspec(testsound@left, [e-mail])

tlevine/tuneR documentation built on May 31, 2019, 3:52 p.m.