libmidi.utils.time

MIDI time utils.

Functions

bpm2tempo(bpm)	Convert beats per minute to MIDI file tempo.
second2tick(second, ticks_per_beat, tempo)	Convert absolute time in seconds to ticks.
tempo2bpm(tempo)	Convert MIDI file tempo to BPM.
tick2second(tick, ticks_per_beat, tempo)	Convert absolute time in ticks to seconds.
to_abstime(events)	Convert messages to absolute time.
to_reltime(events)	Convert messages to relative time.

libmidi.utils.time.bpm2tempo(bpm)

Convert beats per minute to MIDI file tempo.

Returns microseconds per beat as an integer:

240 => 250000
120 => 500000
60 => 1000000

libmidi.utils.time.second2tick(second, ticks_per_beat, tempo)

Convert absolute time in seconds to ticks.

Returns absolute time in ticks for a chosen MIDI file time resolution (ticks per beat, also called PPQN or pulses per quarter note) and tempo (microseconds per beat).

libmidi.utils.time.tempo2bpm(tempo)

Convert MIDI file tempo to BPM.

Returns BPM as an integer or float:

250000 => 240
500000 => 120
1000000 => 60

libmidi.utils.time.tick2second(tick, ticks_per_beat, tempo)

Convert absolute time in ticks to seconds.

Returns absolute time in seconds for a chosen MIDI file time resolution (ticks per beat, also called PPQN or pulses per quarter note) and tempo (microseconds per beat).

libmidi.utils.time.to_abstime(events: List[Event])

Convert messages to absolute time.

libmidi.utils.time.to_reltime(events: List[Event])

Convert messages to relative time.