Local variable exercise problem

[Naqqash]

Hello everyone,

                            This is my first time with locals so please forgive if i'm asking very simple question. My task is to create 3 controls master,left and right. The left and right channel can be set independently; moving the master slide needs to increment or decrement the left and right volumes proportionally. I've tried but so far failed i'm attaching the vi. Please tell me how to set the left and right channels independently along with master.

[CoastalMaineBird]

Bad luck - your VI did not attach.

[CoastalMaineBird]

Consider, rather than actually manipulating the left and right volume knobs/sliders with the master, that you implement the volume control as the product of the two.

In other words, scale the "master" from 0.0 to 1.0 

Use Left * Master as your left volume, and Right * Master as your right volume.

That's the way a mixing board works anyway. 

[vt92]

Don't use locals, use property nodes.

Maybe something like this:

[smercurio_fc]

VI can be found here

[Naqqash]

Thanks but I've to do it with locals it an exercise for me. By mistake the vi was not attached and I've posted this thread again for this Im sorry. Im attaching it here for convience.

[Dennis_Knutson]

Look at the example from vt92 but don't use property nodes. I don't understand why vt92 would recomend property nodes instead of locals.

[Naqqash]

Thanks i've seen it but in his case only master is control but in my case all the three are controls master,left and right and further both left and right are dependent on master and also they  can be changed independently also. Please help.I've to do it using locals and shift registers.

Message Edited by Naqqash_IIEE on 03-19-2009 02:00 PM

[Dennis_Knutson]

In the example, all three are controls and the left and right controls can be changed independently and changing the master does change the left and right controls. What it seems is that you need to better define what you need the master to do.

[Naqqash]

O.K i try to simply it. Here I've to do two things.

1) when i chang master control left and right should also change proportionaly.(this is what i've achieved in the attached VI of mine).

2) the values of left and right can be changed independently also. (this is what i have not achieved). Hope you can help now.