Re: Ticks per unit issue

Lisandro’s answer may not have reached the mailing list … (using reply instead of reply-all)
Nice to hear it is solved !
Raphaël

> Le 20 déc. 2021 à 19:25, Jeanette C. <julien_at_mail.upb.de> a écrit :
> 
> Hi Raphaël,
> many thanks for your reply, but Lisandro's answer did solve it. Midish can change ppq (setunit) internally and it will adapt the whole song.
> 
> The midish file is not MEANT to be read by humans. So everything in there is perfectly fine, it's just the kind of data Midish will use under the hood.
> 4 384 is not a time signature, but the number of ticks per quarter notes, which fits 1536 ticks for four quarter notes.
> 
> Thanks and best wishes,
> 
> Jeanette
> 
> Dec 20 2021, Jerash music has written:
> 
>> Hello,
>> While not totally aware of mdish semantics, the tempo of 37500 seems strange in the definition, as well as the time signature of 4/384
>> By guess if I divide the tempo 37500 by ticks 1536, it gives a tempo of 24,4140625 which is VERY slow as you say, and if multiplied by a factor of 4 you’ll get around 100bpm, so maybe the tempo you are expecting.
>> If yes, then maybe something is to be changed either in the midi exported file so the numbers are correct, or maybe midish does something bad on importing the file ?
>> These are just guesses, hope that helps.
>> 
>> As a Cubase user (macOS) I know I can change the ticks (ppq) on export, but I’m not aware of any linux command line equivalent.
>> 
>> Have fun.
>> 
>> Raphaël
>> 
>>> Le 17 déc. 2021 à 15:39, Jeanette C. <julien_at_mail.upb.de> a écrit :
>>> 
>>> Hey hey,
>>> I imported a MIDI file into midish. The resultant midish file shows
>>> ticks_per_unit 1536
>>> tempo_factor 256
>>> meta {
>>> timesig 4 384
>>> tempo 37500
>>> }
>>> at the top. For a project with a tempo of 100bpm.
>>> 
>>> Synchronised to Midish's internal clock this is fine. Synchronised to an external clock the tempo is VERY slow, about 1/16th to 1/20th slower. I can't really calculate the factor. It's not 1/16th exactly nor 1/20th.
>>> 
>>> What can I do to fix the song to use 24 tick per quarter or how can I correctly change the tempo of the external clock source to correctly generate 100BPM inside Midish?
>>> 
>>> Many thanks for any hints!
>>> 
>>> Best wishes,
>>> 
>>> Jeanette
>>> 
>>> --
>>> * Website: http://juliencoder.de - for summer is a state of sound
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>>> (Britney Spears)
>>> 
>> 
>> 
>> 
> 
> -- 
> * Website: http://juliencoder.de - for summer is a state of sound
> * Youtube: https://www.youtube.com/channel/UCMS4rfGrTwz8W7jhC1Jnv7g
> * Audiobombs: https://www.audiobombs.com/users/jeanette_c
> * GitHub: https://github.com/jeanette-c
> 
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> she's a star
> But she cry, cry, cries in her lonely heart... <3
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