librosa.core.hz_to_midi

librosa.core.hz_to_midi(frequencies)

Get MIDI note number(s) for given frequencies

Parameters:

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

frequencies to convert

Returns:

note_nums : number 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.])