PC Based Oscilloscope using Sound Card

[qaseemali]

labview sound card oscilloscope

I want to use my sound card for the ADC of the PC Oscilloscope. How is it possible?
I plan to do the programmin on LABView, but dont know how to catch the in coming data from the soundcard. What register to read or where can I find the address of the same?

 

[medra]

zelscope virtins


hi
a program for that does exist but i didnt try it

it is attached to my reply

send me the results of using it

 

[tronoty]

using adc of a pc sound card

Here are a few links:

http://www.zelscope.com/

http://www.virtins.com/

 

[rowokii]

soundcard oscilloscope dc

Few things to think about when using the PC audio cards as Oscilloscope..

1. You can't measure DC levels (Inputs to the sound cards are AC coupled using caps...)
2. You are limited to audio frequency (~20-20KHz)
3. You need to make sure you limit your signal to +/- 1V or so.

All of the above sort of makes for a very poor performing Oscilloscope...