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Need help about Labview

I'm newbie at Labview and I have 2 tast to be done. Thanks in advance for your helpings. 

 

1 - Task: Build a VI that captures the sound and plots it with respect to time. Moreover, the
VI should plot the spectrum of the sound data. You should use the spectral block that
performs FFT analysis for the sound spectrum.
Using the developed VI, plot the sound data with respect to time and the sound
spectrum with respect to frequency for a 1000Hz sinus signal and for a (mixed)
signal composed of a 1000Hz sinus and 1800Hz sinus. Moreover use the Filter
Function to remove noises with lower frequencies than 900 Hz.

How can I do this?

 

2- Build a VI that generates a random number between 0 and 10, divides it by an
input number, and displays the result on the front panel. If the input number is zero,
the VI lights a LED to flag “divided by zero” error.

How can I make error part of this task?

 

Thanks.

 

 

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You can try posting your question on this board:

 

https://forums.ni.com/t5/LabVIEW-Job-Openings/bd-p/JobPost?profile.language=en

 

mcduff

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I would recommend looking at the online LabVIEW tutorials
LabVIEW Introduction Course - Three Hours
Learn LabVIEW

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You are clearly taking a class.  Ask your Professor for help.  Ask your fellow students for help.  Go to a computer where LabVIEW has been installed and duplicate (create) the LabVIEW programs that you've seen in class.  Run them.  Make small changes, predict how the code will run, then test your prediction (and knowledge of LabVIEW) by running your program.

 

Or if this is too much effort, drop the class.

 

Bob Schor

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I’m not taking any class! If I had professor or friends I would ask them instead of writing on forums since that would be easier and fast solution. I’m just NI learner who had 5 tasks and when I failed 2 of them, I tried to find source/solution in internet and I couldn’t.  That’s why I’m asking for help in this forums. 

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If you want help with a specific program, post the problem you are trying to solve and then post your efforts, in the form of LabVIEW code (do not post pictures of block diagrams -- we can't "test them", "modify them", etc.).  By seeing what you do, we can get an idea of your understanding of LabVIEW.  LabVIEW is different from many other languages -- it is a Data Flow language (look this up on the Web if you don't understand this term), and if you "don't get it", we will be able to explain where you went wrong, and help you get back on track.

 

Bob Schor

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The task description is pretty specific in what needs to be done and whoever wrote it had a fairly good understanding of what LabVIEW is and can do. So if you had written it you would have solved the problem in less than an hour.

That means you got it from somewhere. Usually such requests come from students who take a class and 3 days before they have to hand in their work they realize that they did not understand the lessons and have zero knowledge where to start. Your case may be different but from all we know we can’t say it is! There is an inofficial policy among most active forum users to NOT honor such requests blindly. Instead we expect to see some real effort from the person in form of VIs they post with explanations of where they got stuck with something.

 

You want to learn this, not just get a VI that solves your problem, if what you say is true. Also this type of tasks can be almost completely solved by looking through the examples that ship with LabVIEW and maybe combine two of them.

Rolf Kalbermatter  My Blog
DEMO, Electronic and Mechanical Support department, room 36.LB00.390
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