plotMelSpectrogram

maelzel.snd.plotting.plotMelSpectrogram(samples, sr, fftsize=2048, overlap=4, winsize=0, axes=None, setlabel=False, nmels=128, cmap='magma', figsize=(24, 8), minfreq=0, maxfreq=16000)[source]

Plot a mel spectrogram

Parameters:

  • samples (np.ndarray) – the samples

  • sr (int) – the samplerate

  • fftsize – fft size

  • overlap – number of overlaps per window

  • winsize – window size in samples (defaults to fftsize)

  • axes (Axes | None) – if given, use this axdes to plot into

  • setlabel – a label to pass to specshow

  • nmels – number of mel bands

  • cmap – the color map used

  • figsize – the figure size as a tuplet (width, height). Only used if axes is None

  • minfreq – the min. freq of the mel spectrum

  • maxfreq – the max. freq of the mel spectrum

Return type:

Axes

Returns:

the axes used