Tempo Drift Rate
Calculator

Inputs

Total drift (BPM)
8

Results

Total drift (BPM)
8
Drift rate (BPM per minute)
2
Percent change
6.666666

Music and audio results

Total drift (BPM)8
Drift rate (BPM per minute)2
Percent change6.666666

formula-map diagram

Total drift (BPM)
8
Drift rate (BPM per minute)
2
Percent change
6.666666

Musical and acoustic relationship

Formula

drift rate = (end BPM − start BPM) ÷ track length

= 8

Note

This result is a simplified model: it applies the displayed standard formula to the values you entered, assuming twelve-tone equal temperament, a speed of sound of 343 m/s in dry air at 20 °C, an ideal free field with no reflections or air absorption, purely resistive speaker loads and Sabine's diffuse-field assumption. Real rooms, instruments, codecs and amplifiers depart from these idealisations, so measure with proper instruments for critical work.

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