Feature
librosa v: 0.7.2
__all__ = ['spectral_centroid',
'spectral_bandwidth',
'spectral_contrast',
'spectral_rolloff',
'spectral_flatness',
'poly_features',
'rms',
'zero_crossing_rate',
'chroma_stft',
'chroma_cqt',
'chroma_cens',
'melspectrogram',
'mfcc',
'tonnetz']
def spectral_centroid(y=None, sr=22050, S=None, n_fft=2048, hop_length=512, freq=None, win_length=None, window='hann', center=True, pad_mode='reflect'):
def spectral_bandwidth(y=None, sr=22050, S=None, n_fft=2048, hop_length=512, win_length=None, window='hann', center=True, pad_mode='reflect', freq=None, centroid=None, norm=True, p=2):
def spectral_contrast(y=None, sr=22050, S=None, n_fft=2048, hop_length=512, win_length=None, window='hann', center=True, pad_mode='reflect', freq=None, fmin=200.0, n_bands=6, quantile=0.02, linear=False):
def spectral_rolloff(y=None, sr=22050, S=None, n_fft=2048, hop_length=512, win_length=None, window='hann', center=True, pad_mode='reflect', freq=None, roll_percent=0.85):
def spectral_flatness(y=None, S=None, n_fft=2048, hop_length=512, win_length=None, window='hann', center=True, pad_mode='reflect', amin=1e-10, power=2.0):
def rms(y=None, S=None, frame_length=2048, hop_length=512, center=True, pad_mode='reflect'):
def poly_features(y=None, sr=22050, S=None, n_fft=2048, hop_length=512, win_length=None, window='hann', center=True, pad_mode='reflect', order=1, freq=None):
def zero_crossing_rate(y, frame_length=2048, hop_length=512, center=True, **kwargs):
def chroma_stft(y=None, sr=22050, S=None, norm=np.inf, n_fft=2048, hop_length=512, win_length=None, window='hann', center=True, pad_mode='reflect', tuning=None, n_chroma=12, **kwargs):
def chroma_cqt(y=None, sr=22050, C=None, hop_length=512, fmin=None, norm=np.inf, threshold=0.0, tuning=None, n_chroma=12, n_octaves=7, window=None, bins_per_octave=None, cqt_mode='full'):
def chroma_cens(y=None, sr=22050, C=None, hop_length=512, fmin=None, tuning=None, n_chroma=12, n_octaves=7, bins_per_octave=None, cqt_mode='full', window=None, norm=2, win_len_smooth=41, smoothing_window='hann'):
def tonnetz(y=None, sr=22050, chroma=None):
def mfcc(y=None, sr=22050, S=None, n_mfcc=20, dct_type=2, norm='ortho', lifter=0, **kwargs):
def melspectrogram(y=None, sr=22050, S=None, n_fft=2048, hop_length=512, win_length=None, window='hann', center=True, pad_mode='reflect', power=2.0, **kwargs):其中視窗可以檢視 scipy.signal.get_window
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