Caution

You're reading the documentation for a development version. For the latest released version, please have a look at 0.9.1.

librosa.effects.harmonic

librosa.effects.harmonic(y, **kwargs)

Extract harmonic elements from an audio time-series.

Parameters

ynp.ndarray [shape=(…, n)]

audio time series. Multi-channel is supported.

**kwargsadditional keyword arguments.

See librosa.decompose.hpss for details.

Returns

y_harmonicnp.ndarray [shape=(…, n)]

audio time series of just the harmonic portion

See also

hpss

Separate harmonic and percussive components

percussive

Extract only the percussive component

librosa.decompose.hpss

HPSS for spectrograms

Examples

>>> # Extract harmonic component
>>> y, sr = librosa.load(librosa.ex('choice'))
>>> y_harmonic = librosa.effects.harmonic(y)

>>> # Use a margin > 1.0 for greater harmonic separation
>>> y_harmonic = librosa.effects.harmonic(y, margin=3.0)