spec2cep: Spectra to Cepstra Conversion
In tuneR: Analysis of Music and Speech
spec2cep R Documentation
Spectra to Cepstra Conversion
Description
Calculate cepstra from spectral samples (in columns of spec) through Discrete
Cosine Transformation.
Usage
spec2cep(spec, ncep = 12, type = c("t2", "t1", "t3", "t4"))
Arguments
spec
Input spectra (samples/time frames in columns).
ncep
Number of cepstra to return.
type
DCT Type.
Value
cep
Matrix of resulting cepstra.
dctm
Returns the DCT matrix that spec was multiplied by to give cep.
Author(s)
Sebastian Krey krey@statistik.tu-dortmund.de
References
Daniel P. W. Ellis: https://www.ee.columbia.edu/~dpwe/resources/matlab/rastamat/
See Also
lpc2cep
Examples
testsound <- normalize(sine(400) + sine(1000) + square(250), "16")
pspectrum <- powspec(testsound@left, testsound@samp.rate)
aspectrum <- audspec(pspectrum, testsound@samp.rate)
cepstra <- spec2cep(aspectrum$aspectrum)
tuneR documentation built on May 29, 2024, 11:28 a.m.
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| spec2cep | R Documentation |
Spectra to Cepstra Conversion
Description
Calculate cepstra from spectral samples (in columns of spec) through Discrete Cosine Transformation.
Usage
spec2cep(spec, ncep = 12, type = c("t2", "t1", "t3", "t4"))
Arguments
spec |
Input spectra (samples/time frames in columns). |
ncep |
Number of cepstra to return. |
type |
DCT Type. |
Value
cep |
Matrix of resulting cepstra. |
dctm |
Returns the DCT matrix that spec was multiplied by to give cep. |
Author(s)
Sebastian Krey krey@statistik.tu-dortmund.de
References
Daniel P. W. Ellis: https://www.ee.columbia.edu/~dpwe/resources/matlab/rastamat/
See Also
lpc2cep
Examples
testsound <- normalize(sine(400) + sine(1000) + square(250), "16")
pspectrum <- powspec(testsound@left, testsound@samp.rate)
aspectrum <- audspec(pspectrum, testsound@samp.rate)
cepstra <- spec2cep(aspectrum$aspectrum)
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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