fft_spectrum {retimer} | R Documentation |
fft_spectrum
Description
Calculates low frequency power spectrum of vocalic interval of speech signal. Following method of Tilsen & Johnson (2008)
Usage
fft_spectrum(signal, f, f_out = 80, padding = 512)
Arguments
signal |
a speech signal |
f |
sampling frequency |
f_out |
output sampling frequency. Signal will be lowpass filtered at f_out/2 |
padding |
length to zero pad signal to. If signal is longer than padding, this will be increased. |
Value
Returns a matrix with columns 'freq' (frequency in Hz) and 'pwr' (spectral power).
References
Tilsen, S., & Johnson, K. (2008). Low-frequency Fourier analysis of speech rhythm. The Journal of the Acoustical Society of America, 124(2), EL34–EL39. doi:10.1121/1.2947626
See Also
fft_spectro
[Package retimer version 0.1.3 Index]