INNER CODE UNIT · Python
mel_spectrogram
libAudioFlux/audioFlux · python/audioflux/core.py:144
def mel_spectrogram(X, num=128, radix2_exp=12, samplate=32000,
low_fre=0., high_fre=None,
window_type=WindowType.HANN, slide_length=None,
style_type=SpectralFilterBankStyleType.SLANEY,
normal_type=SpectralFilterBankNormalType.NONE,
data_type=SpectralDataType.POWER):
"""
Mel-scale spectrogram.
.. Note:: We recommend using the `BFT` class, you can use it more flexibly and efficiently.
Parameters
----------
X: np.ndarray [shape=(..., n)]
audio time series.
num: int
Number of mel frequency bins to generate, starting at `low_fre`.