librosax.fft_frequencies¶

fft_frequencies(*, sr: float = 22050, n_fft: int = 2048) → Array[source]¶

Alternative interface for jnp.fft.rfftfreq

Parameters¶

srnumber > 0 [scalar]: Audio sampling rate
n_fftint > 0 [scalar]: FFT window size

Returns¶

freqsjnp.ndarray [shape=(1 + n_fft/2,)]: Frequencies (0, sr/n_fft, 2*sr/n_fft, ..., sr/2)

Examples¶

>>> librosax.fft_frequencies(sr=22050, n_fft=16)
array([     0.   ,   1378.125,   2756.25 ,   4134.375,
         5512.5  ,   6890.625,   8268.75 ,   9646.875,  11025.   ])