fft_spectro

Calculates low frequency power spectrogram of vocalic interval of speech signal. Following method of Tilsen & Johnson (2008)

fft_spectro(x, f_out = 80, window_size = 256, padding = 2048, plot = TRUE)

Arguments

x

a `tuneR` "Wave" object or the path to a .wav file.

f_out

the sample frequency for the output

window_size

number of samples to calculate each spectrum over

padding

length to zero pad signal to. If signal is longer than padding, this will be increased.

plot

if true a spectrogram will be plotted

Value

Returns a tibble with frequency (Hz), time (s) and 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_spectrum