Caution

You're reading an old version of this documentation. If you want up-to-date information, please have a look at 0.10.2.

librosa.midi_to_hz

librosa.midi_to_hz(notes)[source]

Get the frequency (Hz) of MIDI note(s)

Parameters:

notesint or np.ndarray [shape=(n,), dtype=int]: midi number(s) of the note(s)

Returns:

frequencynumber or np.ndarray [shape=(n,), dtype=float]: frequency (frequencies) of notes in Hz

See also

hz_to_midi
note_to_hz

Examples

>>> librosa.midi_to_hz(36)
65.406

>>> librosa.midi_to_hz(np.arange(36, 48))
array([  65.406,   69.296,   73.416,   77.782,   82.407,
         87.307,   92.499,   97.999,  103.826,  110.   ,
        116.541,  123.471])