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        General >> Melody Assistant / Harmony Assistant >>  Collisions between notes of two voices on one staff
        
(Message started by: DerekH on Feb 4^th, 2011, 10:38pm)

Title: Collisions between notes of two voices on one staff
Post by DerekH on Feb 4^th, 2011, 10:38pm

Is there any way to make HA automatically avoid collisions (overlap) between two notes of different voices on the same staff. These collisions happen when the 2 notes are in unison, a semitone apart, or a whole tone apart. It is possible to drag one of the notes sideways manually, but this is tedious, and it gets lost any time the format is reset.

I would appreciate knowing if anyone has solved this difficulty.

Thanks,

Derek

Title: Re: Collisions between notes of two voices on one staff
Post by JP on Feb 4^th, 2011, 11:46pm

No, there is no automatic solution, as much as I know.
I made an attempt to write a script, but it's far from perfection.

Title: Re: Collisions between notes of two voices on one staff
Post by Tremolo on Feb 5^th, 2011, 12:26am

Bonsoir DerekH,

Il y a un script de Bubu qui peut vous aider dans "Diagnosis".
Je le mets en fichier joint.

Title: Re: Collisions between notes of two voices on one staff
Post by DerekH on Feb 5^th, 2011, 5:30am

on 02/05/11 à 00:26:27, Tremolo wrote:

Bonsoir DerekH,

Il y a un script de Bubu qui peut vous aider dans "Diagnosis".
Je le mets en fichier joint.

Hello Tremolo,
Sorry, I don't read French. I believe you sent me a ZIP archive and that its contents are for Windows. I have an older G4 Mac. Do you have anything that would work with Mac OS 10.4?
Thanks anyway.
Derek

Title: Re: Collisions between notes of two voices on one staff
Post by bubu42 on Feb 5^th, 2011, 9:30am

Hello Derek,

I wrote the script Tremolo is speaking about. It is written in Lua (the scripting language used by Harmony Assistant) and so it should work both on MacOS and Windows.
As JP pointed out, it is very difficult to fully automate the process because there are so many parameters which vary from one bar to another.
From my own experience, I should say that there are not that many colliding notes in a score. The problem is that you still miss out some of them when editing the score.
So, the script is meant to highlight the colliding notes and help you shift them without having to edit each of them.
The help page should also work in English.
Basically, you launch the script and choose the set of merged staves you want to analyze (dropdown list at the top left) The colliding notes are set to red by default. In the second dropdown list (top right) you choose each note to be processed (the bar and notepitch are shown). The position on the score will be set so that the note is visible. I advise to zoom in by using the knob (on the left) Then, you shift the notehead with the second knob and see the result on the screen. You can also enter a value for more precision (input box under the knob)
It may happen that the notehead (voice 2) shift reaches 100 % and the note is still colliding. Then, you change the voice to be tampered (radio button in the middle of the window) and choose V. 1.
Once you have finished with the colliding notes, all you have to repaint them. Select the whole score and Edit>Appearance>General + set the note color (top right of the window) I attach a screen copy.
I hope this will help.

Title: Re: Collisions between notes of two voices on one staff
Post by bubu42 on Feb 5^th, 2011, 9:35am

Well, it seems that the attachment si too big (though it is less than 200 Kb) I try again.
Bad luck ! The attachment directory seems to be crammed.

Title: Re: Collisions between notes of two voices on one staff
Post by Tremolo on Feb 5^th, 2011, 11:17am

Here is the first topic about Bubu's script:
http://www.myriad-online.com/cgi-bin/bbs/YaBB.pl?board=MYRSCRIPT;action=display;num=1230475963

Title: Re: Collisions between notes of two voices on one staff
Post by Oliveira on Feb 5^th, 2011, 4:05pm

Yo ya he mostrado mi agradecimiento a bubu42 por su esfuerzo en intentar paliar este lamentable fallo de H.A. Es posible que en la mayoría de partituras no aparezcan muchos intervalos de 2ª en zonas conflictivas, pero a veces (sobre todo en partituras de piano aparecen muchimas. Entonces es la locura. Bueno está el Script de bubu42 para localizarlos. Luego, es preferible seleccionarlos de forma discontínua y hacer el desplazamiento de forma global con un atajo de mover las notas hacia derecha o izquierda. Es mas rápido que ir nota a nota.
Este tema ya es viejo (yo mismo lo inicié en cierto foro). No me parece de recibo este tremendo fallo. Creo que no existe ningún programa de notación que tenga esta carencia. Ésta, y la chapuza de los puntillos en plicas combinadas (que uno se convierten en dos) >:(
Lo siento, pero debo de decirlo. Este apartado es una gravísima mancha en el logiciel. :-[

Title: Re: Collisions between notes of two voices on one staff
Post by DerekH on Feb 5^th, 2011, 4:18pm

Thanks to all of you who have responded to my post. I will try again to use the script later this weekend.

Derek

Title: Re: Collisions between notes of two voices on one staff
Post by Oliveira on Feb 5^th, 2011, 4:36pm

En este vídeo demuestro como soluciono el conflicto cuando se me presentan muchos casos.
1.- Aplico el Script de bubu42 para que localice las colisiones.
2.- Hago una selección discontínua con el botón derecho.
3.- Con el atajo de "Mover derecha-Mover izquierda", realizo todo el desplazamiento de una sola vez a todas las notas.

Saludos.

http://www.youtube.com/watch?v=noNK46EZgaA