Posted
When i try to import midi files the import and recognition is very long (minutes) or even don't finish after 15mn or so for some (simple) midifiles.
Sa., 25.01.2020 - 20:17 Permalink
The duration of the file is not a factor. The number of polyphonic rhythms is. It raises the combinatorial possibilities of figure segmentation, sometimes in the billions.
There's often a lot of repetition in MIDI files. I recommend loading them as static pitches (very fast), then extracting the interesting parts and doing figure recognition on them individually ((https://users.cognitone.com/tutorial/import))
So., 26.01.2020 - 02:52 Permalink
Some time ago I made a video showcasing a workflow with "postponed" Figure recognition after importing a MIDI file with Synfire.
The video is here: Synfire workflow for MIDI file import
Hope this helps further making clear how to simplify MIDI imports.
Mo., 27.01.2020 - 19:54 Permalink
Since DAWs work fine with static notes, import is often confused with some form of file/open.
MIDI just can't do that for Synfire. Don't expect to open a MIDI file, edit it with synfire and save it as MIDI again. MIDI is a very old, lossy and simple format. Synfire requires a lot of metadata that MIDI can't represent. MIDI files are mainly a medium you can harvest for raw material (libraries).
There is no portable file format out there that would preserve enough of Synfire's metadata to make it a useful data exchange format.