LoopBpmConfidence¶

Inputs¶

• signal (vector_real) - loop audio signal

• bpmEstimate (real) - estimated BPM for the audio signal (will be rounded to nearest integer)

Outputs¶

• confidence (real) - confidence value for the BPM estimation

Parameters¶

• sampleRate (real ∈ (0, ∞), default = 44100) :

  the sampling rate of the audio signal [Hz]

Description¶

This algorithm takes an audio signal and a BPM estimate for that signal and predicts the reliability of the BPM estimate in a value from 0 to 1. The audio signal is assumed to be a musical loop with constant tempo. The confidence returned is based on comparing the duration of the signal with multiples of the BPM estimate (see [1] for more details).

References:

[1] Font, F., & Serra, X. (2016). Tempo Estimation for Music Loops and a Simple Confidence Measure. Proceedings of the International Society for Music Information Retrieval Conference (ISMIR).

Source code¶

• C++ source code

• C++ header file

See also¶

LoopBpmConfidence (streaming)