Use of Audio In on laptop for Data Acquisition

[visible progress]

I'd like to use the Audio In on a laptop to acquire 500 point per second data in a biomed experiment. Where to I get a driver or whatever code I can use to access the audio in on my laptop (a HP). I'm using Labview for windows.

[Aaron Marks]

If you have labview 5.1 or 6, you can find useful VI's in the Sound and Graphics pallette. If you have 5.0, I think you can get the VI's from the Developer Zone site.

[joej]

I've used the "audio in" to determine a fan's RPM, using a microphone. The problem I see with your application idea is the slow sample rate required. I believe choices are 11K, 22K or 44.1K samples per second for the audio input drivers - at least the version I've used. An example of an ocilloscope using the audio sound card drivers can be found at:

http://www.yelmtel.com/~joej/vis/scsco.zip

Perhaps you can modify this to suit.

Joe Jasniewski