ReaScript tempo in PPQ

[pcartwright]

I'm working on a script that, in theory, would let users record a tempo using a MIDI track as a guide. It would be similar (though not exactly like) Notion's nTempo ability.

Does anyone have a function (preferably in Lua) to convert tempo measures and beats (from GetTempoTimeSigMarker) into PPQ? it would be easy if the project kept the same time signature throughout, but I need the conversion to work for projects with varying and irregular time signatures.

[pcartwright]

Or, conversely, converting PPQ from MIDI note on to measures/beats would work, too.

[snooks]

You can get time pos from GetTempoTimeSigMarker then...

proj_QN=TimeMap2_timeToQN(0, time_pos)

ppq=reaper.MIDI_GetPPQPosFromProjQN(take,proj_QN)

Is this sort of what you want?

[pcartwright]

Sorta. Ideally I'd be able to convert both ways, from measures/beats to PPQ and vice versa. But I think I have an idea on how to accomplish this.

[mpl]

Maybe this helps (convert cubase .smt tempo map in ppq (acually same data as midi tempo map) to reaper tempo envelope):

https://github.com/MichaelPilyavskiy...empo%20map.lua