Caution

You're reading the documentation for a development version. For the latest released version, please have a look at 0.10.2.

librosa.hz_to_midi

librosa.hz_to_midi(frequencies)

Get MIDI note number(s) for given frequencies

Parameters:

frequenciesfloat or np.ndarray [shape=(n,), dtype=float]

frequencies to convert

Returns:

note_numsnumber or np.ndarray [shape=(n,), dtype=float]

MIDI notes to frequencies

See also

midi_to_hz

note_to_midi

hz_to_note

Examples

>>> librosa.hz_to_midi(60)
34.506
>>> librosa.hz_to_midi([110, 220, 440])
array([ 45.,  57.,  69.])