Re: [Rosegarden-user] Quantizer

[hubert <hqu...@fr...>]

Thanks for your response and I'm sorry for my poor english writing.
You indeed understood my problem.
The midi files in from a friend who use cakewalk and create manually 
with a midi piano interface. Of course, this friend doent know abour 
linux and rosegarden.
He send melody to me so I could harmonize them. he dosent see the defect 
of his performance (small restsfor examples) of his midi files because 
cakewalk doesnt show him but store them in the midi files !

What I wanted to point in that is the quantizer is central to my use of 
rosegarden and every improvement of it would make me very happy.
I hope this could be fixed in some later version of resosegarden.

I've another (small) problem with the quantizer, I use sometimes 5/4 
music (unusual) and I would like to impose 5/4 to the quantizer before 
he does his job.
The reasonning is : now, he doesnt understand what happens so he decide 
to write 4/4 music and so many notes are cut into 2 and I have to group 
them manually.


Hubert
> On Tuesday 16 September 2008, hubert wrote:
>
>   
>> When I import a midi files to obtain a partition.
>> I use the heuristic quantizer, it works well to for rythmics BUT It
>> annoys me with a lot of small silence. I would want to automatically
>> adjust the sound to mininize those silence.
>>     
>
> Oh.  Rests.  You mean rests.  Now I understand what you're asking.
>
> (la partition ==> music notation
>  une silence  ==> rest)
>
> You import something, and you get lots of annoyingly short notes with random 
> little rests.
>
> That's a good question, actually.  I wrote the book on Rosegarden, and I run 
> into this problem frequently myself.  Chris's quantizer frequently tantalizes  
> me by almost getting what I want without having to fix anything by hand, but 
> it seems like no matter where I put the settings, I usually wind up having to 
> settle for something that leaves more hand work than I want, but doesn't 
> actually do anything harmful.  (An example of a harmful result would be I get 
> rid of a lot of 32nd rests but it also mangles the triplets or syncopated 
> rhythms beyond recognition.)
>
> I'm afraid I have no magic answer to this one.  It is helpful to select all 
> the, say, 32nd notes and then use Ctrl+6 (I think) to turn them into 16th 
> notes, and so forth, but that kind of thing still only goes so far.  In fact, 
> I have one project now where I really have to just delete about 10 bars of it 
> and rewrite them manually, because it's just too badly mangled on import to 
> ever make sense of it.
>
> If anybody out there has more inventive suggestions than mine, I'd love to 
> hear them too.  This is a job I really don't like.  Rosegarden tends to do 
> really well when the imported MIDI was machine-generated, such as the output 
> of exporting from some other notation program, but it is anyone's guess how 
> the result will turn out when you work from other MIDI sources, such as live 
> human performances, or say a random MIDI file of your favorite classical work 
> or something.
>
> In Rosegarden's defense, I always had mixed results with everything else too, 
> including, yes, Noteworthy Composer.  Rosegarden frequently seems to come 
> even closer to getting it right, which is why it's that much more 
> disappointing when something goes wrong.
>
> Also, on this topic, another issue that comes up frequently is that of 
> overlapping voices.  Rosegarden can't handle overlapping voices in the same 
> segment, but it doesn't know how to sort an incoming stream (live MIDI 
> recording or MIDI import) into multiple segments by voice, so you have to do 
> this work by hand, and it can be extremely tedious.  (We talked about trying 
> to write a voice sorter, and talked ourselves out of it.  It's very, very 
> complicated, and our chances of succeeding are so low that we decided to 
> forget about it and never talk about it again.)
>