tempo_eval.extract_tempi_and_salience

tempo_eval.extract_tempi_and_salience(tempo_annotations)

Extract MIREX-style values from the annotations. I.e. (t1, t2, s1) — tempo 1, tempo 2 and the salience value for tempo1. Tempo values are ordered: t1 < t2.

Parameters

tempo_annotations (Annotation) – annotations

Returns

t1, t2, s1

Return type

(float, float, float)

Example

>>> from tempo_eval import read_reference_annotations, extract_tempi_and_salience
>>> gt = read_reference_annotations('smc_mirex', validate=False)  # turn validation off for speed
>>> gt_691694 = gt['tempo']['2.0']['691694.LOFI.jams']  # choose reference version '2.0'
>>> tempo = extract_tempi_and_salience(gt_691694)  # extract single tempo from JAMS annotation
>>> print(tempo)
(73.0, 144.0, 0.04228329809725159)