How can I open a WAV file in LabVIEW 7?

[rmorais]

I need to make a program that opens a WAV file and converts it into amplitudes values and saves the in a .txt file. But how can I make LabVIEW 7 open up a WAV file? It's probably easy, but I didn't come up with anything up to now!

Thanks in advance!

[TimoSchott]

try this

regards

timo

[rmorais]

sorry, didn't work

the .txt was created, but it was blank

thanks!

[TimoSchott]

well, i use LV 7.1 & WinXP and creates a txt file with values

try to use the VI with different wavs

play around with the parameters

regards

timo

[rmorais]

Ok, I'll try that!

Thanks!

[TiTou]

Hi Timo,

I'm using LabVIEW 7.1.1 and WinXP, for me also, the text file is created but empty...
Is it working with files in C\WINDOWS\Media on your computer ??

[TimoSchott]

I attached the tada files

[TiTou]

Thanks Timo,

It now works .. I still dont know why it didn't work the first time...

[rmorais]

It worked here as well, thanks!

I still have a problem, though... My .WAV file is 30 seconds long, and I only want the first 3 sec of data to be written in the text file! Can this be done? I made the program stop after n number of iterations but it didn't work, the file was still acquiring all the data!!

[TimoSchott]

Hi,

my suggestion:

after reading the wav file => write the information in an array => resize the array => write to file

regards

timo