Chris Cannam wrote: > > Come now, Gilles was definitely the more correct pedant there.
He might have been had he not said, "H is not part of the continental European names" but it is indeed true that more than one name exists for this note. > Back to the topic, I didn't completely understand what Vlada was > asking for myself -- do I get the idea that the requirement is to > split a part in cases where there are lower notes that do not match > the start and/or end times of higher notes? It sounds like something > quite feasible for simple examples but potentially troublesome for > more complex pieces, particularly where you might have a large number > of overlapping notes happening at once. I think he wanted notes of the highest pitches and lowest pitches at each point in time to be split automatically into separate tracks. I'm not sure what he was proposing to do for those times when there are also notes of intermediate pitches such as the middle note(s) in a chord of three or more notes. > Relatedly, Joerg Anders has recently implemented in NoteEdit an > algorithm that splits imported MIDI into multiple voices by trying to > find the set of shortest monophonic routes (where "short" is measured > in distance both in pitch and time between neighbouring notes) > through a part. I couldn't get it to work at all well for > unquantized or incompletely quantized input, though the principle > sounds OK to me for well-quantized input. Yes, it doesn't seem to work well except in quite simple or quantised music. It's an interesting problem and an interesting algorithm. There are better algorithms, not necessarily published. In general I think it is very difficult to write an algorithm that generates musically plausible separations into parts (voices) given only imported MIDI. William ------------------------------------------------------- This SF.Net email sponsored by Black Hat Briefings & Training. Attend Black Hat Briefings & Training, Las Vegas July 24-29 - digital self defense, top technical experts, no vendor pitches, unmatched networking opportunities. Visit www.blackhat.com _______________________________________________ Rosegarden-devel mailing list [EMAIL PROTECTED] - use the link below to unsubscribe https://lists.sourceforge.net/lists/listinfo/rosegarden-devel
