nnAudio.librosa_functions.hz_to_octs¶

nnAudio.librosa_functions.hz_to_octs(frequencies, tuning=0.0, bins_per_octave=12)¶

Convert frequencies (Hz) to (fractional) octave numbers.

Examples

>>> librosa.hz_to_octs(440.0)
4.
>>> librosa.hz_to_octs([32, 64, 128, 256])
array([ 0.219,  1.219,  2.219,  3.219])

Parameters

frequencies (number >0 or np.ndarray [shape=(n,)] or float) – scalar or vector of frequencies
tuning (float) – Tuning deviation from A440 in (fractional) bins per octave.
bins_per_octave (int > 0) – Number of bins per octave.

Returns

octaves – octave number for each frequency

Return type

number or np.ndarray [shape=(n,)]