mag2mel

ketos.audio.utils.misc.mag2mel(img, num_fft, rate, num_filters)[source]

Convert a Magnitude spectrogram to a Mel spectrogram.

Args:
img: numpy.array

Magnitude spectrogram image, linear axis

num_fft: int

Number of points used for the FFT.

rate: float

Sampling rate in Hz.

num_filters: int

The number of filters in the filter bank.

Returns:
mel_spec: numpy.array

Mel spectrogram image