dcase_util.features.SpectralCentroidExtractor

class dcase_util.features.SpectralCentroidExtractor(fs=44100, win_length_samples=None, hop_length_samples=None, win_length_seconds=0.04, hop_length_seconds=0.02, spectrogram_type='magnitude', n_fft=2048, window_type='hamming_asymmetric', center=True, **kwargs)

Feature extractor class to extract Centroid features

Constructor

Parameters

fsint

Sampling rate of the incoming signal. Default value 44100

win_length_samplesint

Window length in samples. Default value None

hop_length_samplesint

Hop length in samples. Default value None

win_length_secondsfloat

Window length in seconds. Default value 0.04

hop_length_secondsfloat

Hop length in seconds. Default value 0.02

spectrogram_typestr

Spectrogram type, magnitude or power spectrogram. Default value ‘magnitude’

n_fftint

Length of the FFT window. Default value 2048

window_typestr

Window function type. Default value ‘hamming_asymmetric’

centerbool

If true, input signal is padded so to the frame is centered at hop length Default value True

__init__(fs=44100, win_length_samples=None, hop_length_samples=None, win_length_seconds=0.04, hop_length_seconds=0.02, spectrogram_type='magnitude', n_fft=2048, window_type='hamming_asymmetric', center=True, **kwargs)

Constructor

Parameters

fsint

Sampling rate of the incoming signal. Default value 44100

win_length_samplesint

Window length in samples. Default value None

hop_length_samplesint

Hop length in samples. Default value None

win_length_secondsfloat

Window length in seconds. Default value 0.04

hop_length_secondsfloat

Hop length in seconds. Default value 0.02

spectrogram_typestr

Spectrogram type, magnitude or power spectrogram. Default value ‘magnitude’

n_fftint

Length of the FFT window. Default value 2048

window_typestr

Window function type. Default value ‘hamming_asymmetric’

centerbool

If true, input signal is padded so to the frame is centered at hop length Default value True

Methods

__init__([fs, win_length_samples, ...])	Constructor
extract(y)	Extract features for the audio signal.
get_spectrogram(y[, n_fft, ...])	Spectrogram
get_window_function(n[, window_type])	Window function
log([level])	Log container content
show([mode, indent, visualize])	Print container content
to_html([indent])	Get container information in a HTML formatted string
to_string([ui, indent])	Get container information in a string

Attributes

description	Extractor description
label	Extractor label
logger	Logger instance