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Labview 7.0 Vs Labview 8.2 Issue?

Hello,
For a independent study Labview class I'm taking, I am trying to create a program that will input two different wav files and combine parts of them together for audio output. The first file I am trying to cut out the bass lines and replace them with the bass lines from the second file. Kind of like turning the second file into a karaoke version and filling in the vocals with the vocal line from the first file. A second option is simply taking the instrumentals from a song (a wav file containing only the bass line) and adding them to the first file after cutting out the original bass line of the first if this isn't possible.

I found the attached file while searching for information/examples as to how to do this - it was originally posted at:
http://forums.ni.com/ni/board/message?board.id=170&message.id=74618&requireLogin=False
I tried running the file in Labview 8.20 and it came back with the error that "Build Screen.vi not found." I have searched for this file to download but have come up with nothing.

Also, any tips/pointers/comments (or "there is no way this is possible") are much appreciated and very welcome. I have been searching to see if there is anything like this that has been done before and as of yet haven't been able to find anything. I am pretty new to Labview but I am a quick learner and I have a professor working with me on the project that is very familiar with Labview. However, it's spring break right now though, and he isn't around (thought I would try to get this done and suprise him heh). THANKS FOR THE HELP!!!
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Hi,

One possible solution is mentioned in the link you provided - to manipulate the 16 bit stereo integers.  The VI missing seems to be used to display the info in regards to the wav file.  Another possible solution would be to take the FFT of your wav files and use some sort of low pass filter to remove your high frequency components and then reattach the components back to make the wav file.  Sounds like a very interesting project.  I would be curious to see the final results-  Goodluck on your project.

and I hope this helps,

Regards,

Nadim
Applications Engineering
National Instruments
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Here is the Build Screen VI from 71.  All it does it create a string for you.

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