Shareware dual-trace oscilloscope program

[Jay]

Hi everybody - I have a question about a shareware dual-trace
oscilloscope program I picked up for my computer for a science
project. I am not entirely too familiar with oscilloscopes but if this
program uses my sound card as an input as it says then how can it
effect a 'dual' trace if there is only one mic/line-in jack on the
back of my soundcard and not two?
Thanks!
- Jay

 

[Robert Baer]

Hi everybody - I have a question about a shareware dual-trace
oscilloscope program I picked up for my computer for a science
project. I am not entirely too familiar with oscilloscopes but if this
program uses my sound card as an input as it says then how can it
effect a 'dual' trace if there is only one mic/line-in jack on the
back of my soundcard and not two?
Thanks!
- Jay

"Modern" soundcards are stereo............................

 

[Rich Andrews]

[email protected] (Jay) wrote in @posting.google.com:

Hi everybody - I have a question about a shareware dual-trace
oscilloscope program I picked up for my computer for a science
project. I am not entirely too familiar with oscilloscopes but if this
program uses my sound card as an input as it says then how can it
effect a 'dual' trace if there is only one mic/line-in jack on the
back of my soundcard and not two?
Thanks!
- Jay

One jack, three connections. L, R, and ground.


r