Increasing of a audio frequency in labview using the sound card for sampling?

[Crono]

I'm using labview 8.5,I am sampling sound through a microphone the using a sound card. Basically I'm trying to increase frequency of the audio signal, I found a few useful VIs, but none work to my dismay, the data graph also has trouble plotting amplitude vs. frequency, in frequency domain. I want to increase the frequency of someones voice by some factor X, is there a method that I could do to perform this?

[Conseils]

I created a quick sample based on one of the shipped samples.

See the attached screen shot. The trick with the stereo channel is to select the properties option on the Convert To Dynamic Data if you enter it youself. Then set it to handle a 2d array.

You could readily FFT this data either from the microphone or the wav file. Check out the shipped examples using the keyword FFT.

This example was tested using the Chimes.WAV sample found in the C:\windows\media folder. I will post the properties window for the Align and Re-sampling Express VI as well.

Hope this is what you needed.




Message Edited by Conseils on 11-07-2007 09:59 PM

Message Edited by Conseils on 11-07-2007 10:00 PM

[Conseils]

The properties




Message Edited by Conseils on 11-07-2007 10:02 PM