USB sound blaster problem

[abifarz]

Hi freinds

I try to send a sine puls to sound blaster  speaker and get it by LINE IN or Microfon , it is ok when I use intenal sound blaster of PC. it works hours without any problem , but when I use USB External Sound blaster ( Creative MP3+) after one minute it does not work ,it show up that it works , LED of sound blaster in box is blinking , but no OUTPUT puls  , even when I stop and close Labview I can not hear music with USB audio ,I should restart or reconect USB external and after restarting it works again just for some minute .

I have posted the front panel and I think it is complete right design becuase it works by internal PCI sound .

it is very important to me becuase next week I should deliver my thesise and it does not work .

can you give a idea or sugestion !!   

I have windoes XP Pro  SP2 , LV 7.1 (Acadenmic version) , notebook HP nx9105

I use just windows driver for USB audio , and i have installed new version USB creative MP3+ and nothing is changed.

PS. I say again it works perfect with internal sound card but with external USB should restart ( reconect ) USB every 1or 2 minutes .

[ryank]

Don't see anything inherently wrong with your program so I'd guess it's something with the driver.  You might try checking out the Creative Labs web page to see if they've got an updated driver or calling Creative Labs support (Creative Labs actually has pretty good support).  I'm not sure if you're limited to the SoundBlaster, but I've had good luck doing very similar tasks using a Philips Audigy PSC805 external sound card.  They're quite inexpensive.

http://www.amazon.com/exec/obidos/tg/detail/-/B0000ULADG/qid=1122658717/sr=8-1/ref=pd_bbs_1/103-5041...

Regards,

Ryan K.

[abifarz]

thank you rayn

I have updated driver and it is update but it seems does not work again . i will try to buy another Soundblaster .

anybody ?? New Idea ????

babak