BpmRubato¶

Inputs¶

• beats (vector_real) - list of detected beat ticks [s]

Outputs¶

• rubatoStart (vector_real) - list of timestamps where the start of a rubato region was detected [s]

• rubatoStop (vector_real) - list of timestamps where the end of a rubato region was detected [s]

• rubatoNumber (integer) - number of detected rubato regions

Parameters¶

• longRegionsPruningTime (real ∈ [0, ∞), default = 20) :

  time for the longest constant tempo region inside a rubato region [s]

• shortRegionsMergingTime (real ∈ [0, ∞), default = 4) :

  time for the shortest constant tempo region from one tempo region to another [s]

• tolerance (real ∈ [0, 1], default = 0.08) :

  minimum tempo deviation to look for

Description¶

This algorithm extracts the locations of large tempo changes from a list of beat ticks.

An exception is thrown if the input beats are not in ascending order and/or if the input beats contain duplicate values.

Quality: experimental (non-reliable, poor accuracy).

References:

[1] Tempo Rubato - Wikipedia, the free encyclopedia, http://en.wikipedia.org/wiki/Rubato

Source code¶

• C++ source code

• C++ header file

See also¶

BpmRubato (streaming)