Buggy exporting MIDI files with tempo map changes (FIXED)

juancarlangas · 12-29-2014, 07:05 PM

Tempo changes resulting in exported MIDI files with tempo map changes are really mistaken respect the original REAPER session file. I'll look for a downgrade until it's solved.

CONFIRMED: THIS BUG DOESN'T APPEAR IN 4.59. Seems appear since 4.6

preachers · 01-22-2015, 01:00 AM

I have the same experience, When I open a old session with tempo map in it the MIDI part lost sync with audio.

juancarlangas · 01-23-2015, 08:59 PM

Well, i'm not sure your experience is the same. My bug is: in exported .MID files the tempo map loses all sync of the original .RPP session; wich not happened in old Reaper versions.

Please, try to export to a .MID file, and play it with a standard MIDI player, and tell me your experience. By my side, i will try to make it in Wine, since i'm only tried on Mac.

(This bug was present in older versions, then they fixed it, but again appears). Actually I'm using a January 2014 version to avoiding this bug)

Fergler · 01-23-2015, 09:14 PM

Fixed in 4.77rc1

No empirical tests done here but I recently exported MIDI with 50 bars of tempo being changed once or twice every bar, exported it, and loaded into Cubase. It gave me 50 bars of music but the tempo stuff was all wrong and ended at bar 27, with no tempo information for the rest of the notes. I tested it in Windows Media Player too, same issue at the same location.

I was really hoping to work between the two programs for my course work.

Here is the file for any devs that want to test this. Exported with v4.76
You will notice at 0:58 the tempo slows down immensely, does not reflect original file.