using PC sound card as a signal source

[jianshi]

hi,
i am a university student, and really want to know if
it is possible to using the sound card on a PC as a signal generation source?
i did use labview sound VI to generate a single tone, but the measured signal is not a sine waveform,the negtive period is missing.
is there anybody can help me? thanks!

[LouisP]

Dear Jianshi,

Attached is a link that you might find interesting:

http://digital.ni.com/public.nsf/websearch/4A62AC2DB5BDDB3E86256E12003755C2?OpenDocument

Kind Regards

LouisP
Applications Engineer
NI-UK