MIDI PPQN Duration Calculator

beats per minute

120

pulses per quarter note

24

duration

1

At 120 BPM, 24 clock ticks will last 0.02083 seconds.

MIDI sequencing hardware and software use a variable number of timing resolutions, with 24 PPQN (parts or pulses per quarter note) being the MIDI File Specification Standard used for MIDI clock byte synchronization, as well as three-byte synchronization needed for MIDI Time Code and Song Position Pointer events. Thus all sequencers should use PPQN that at least have the factors of

24(

3

2

×3)

as base factors used by any higher resolutions that they support, if master/slave synchronization is needed.