Lmms: Export MIDI: tempo change events

[tukkek]

Not sure if this is a bug report or a feature request but if you have an automation track changing the tempo of a composition, the exported MIDI file will not carry with it the appropriate MIDI tempo change event.

I imagine automation is entirely disregarded during the export process but considering MIDI supports a tempo change event, it might be relatively simple to support this particular feature (maybe even through a hack that keeps track if the tempo has changed since the last beat or something).

Thanks for the amazing work on LMMS! As if it wasn't already my music production suite of choice, you guys keep making it even better! The MIDI export is godly!

[SecondFlight]

Hi tukkek, thanks for the suggestion.

I would say this is a feature request as opposed to a bug, as it's almost certainly going to require adding new functionality instead of fixing something that's broken.

[tukkek]

I fully understand your point of view but keep in mind that to anyone exporting a project that has tempo changes, this is definitely a bug since the song is not exported correctly. Please consider this fact as well.

Thanks again!

[musikBear]

naehh this is simply because the import of midifiles leaves a tempi-stamp in the midi-code.
@tukkek Try this:

• Open the project in question, and right-click the BPM-gadget
• from context-menu select "remove-all-global-automation"
• make you BPM changes in the again
• export

Was that it?

[Spekular]

That's not what this issue is about @musikBear. OP is asking for MIDI
exported from LMMS to include tempo automations.

On Thu, Jan 10, 2019, 14:18 musikBear <[email protected] wrote:

naehh this is simply because the import of midifiles leaves a tempi-stamp
in the midi-code.
@tukkek https://github.com/tukkek Try this:

• Open the project in question, and right-click the BPM-gadget
• from context-menu select "remove-all-global-automation"
• make you BPM changes in the again
• export

Was that it?

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[musikBear]

My bad -sorry

[WattanaGaming]

This issue report is mildly confusing

[SecondFlight]

What do you find confusing here? Tempo automation doesn't work with MIDI export:

If you have an automation track changing the tempo of a composition, the exported MIDI file will not carry with it the appropriate MIDI tempo change event.

[EFHIII]

Not having this as a feature is really frustrating for me right now since I need to make heavy use of MIDI export.
Another note; it seems that LMMS screws with imported MIDI tempos; normalizing everything to integer tempos and placing them on beats lines if I'm not mistaken which is completely ruining a timing sync I need for a game, not to mention making imported MIDIs not sound quite right when there's a dramatic tempo change on an off-beat from a slow BPM to fast.