audio output

[Izze2000]

Hi all!

Like others have reported there is some difficulties to get the soundcard continous audio output to work without glitches.

In the thread:

http://forums.ni.com/ni/board/message?board.id=170&message.id=397480&query.id=211842#M397480

t06afre  points to the continuoussoundoutput.llb

that you can find at 

http://zone.ni.com/devzone/cda/epd/p/id/1615

In there you can both find an executable and a llb.

The excetutable seems to work fine when i increase the  number of buffers...great and very promising!!

However i cannot use the llb since  many of the vi's show up as questionmark in the 'main' 'Continous Sound Output.vi'.

When i try to replace the vi's, for instance the 'SO Config.vi' i get the enclosed errormessage.

I have got LW 8.5

Any advice what to do is very welcome 🙂

[Coq_Rouge · Accepted solution]

try this

[Izze2000]

t06afre

You are the best!

Beer is waiting for you if you someday stop by Stockholm, Sweden. No kidding! 🙂 

[Coq_Rouge]

I will take your words. I live in Oslo

Message Edited by t06afre on 04-22-2009 07:50 PM

[ScottH]

I'm trying to use a Griffin iMic to do simultaineous auidio input and output on a MacBook Pro. Unfortunately, the device doesn't show up as an audio device for input or output in LabVIEW. 

For example, double clicking on the Acquire Sound VI brings up the configuration dialog, but built-in input is my only choice as device 0.

The MacBook Pro only has one 1/8" jack, so I need to use a USB audio device to do simultaineous audio I/O.

This issue seems to have come up before, but the thread died with no solution.

http://forums.ni.com/t5/LabVIEW/Third-Party-Sound-Card-Audio-Interface-in-OS-X/td-p/1067668

OS X 10.6.8 and LabVIEW 2011 (11.0) student edition.

Any ideas?

Thanks,

-Scott

[ventle]

Hi,

I tried using this solution on Labview 2014 since I was also having issues with continuous sound output.

Although the VI runs without errors, no sound is heard. The big problem is that after having run this VI once, it is no longer possible to play any sounds using the regular Sound Output Write either, not even after restarting the computer, and I'm not even able to test the output device using the Play Waveform express VI. Seems like the VI is permanently changing some settings in Labview.

The same has happened on two different computers, sound output stopped working permanently after running this VI only once.

Any ideas?

Also, for anyone finding this old thread in a google search (like I did), DO NOT use the code attached in this thread on newer Labview versions.

[Frank_R]

I'm using LV 2014 for an audio processing project (school). I tried Coq Rouge's code before I read your message, and it ran without errors, and no audio, as you stated; however, I didn't see any issue with the LabVIEW VIs afterwards. I'm guessing it may only work on older versions of LabView. I can't guess why it affected LV permanently in your case. For my install I kept everything, including the dll, in a separate folder.

[ventle]

Actually, we were able to solve this case simply by having a teacher reinstall the sound card driver (we weren't able to test that ourselves since we didn't have admin access on the computer). I'm guessing the issue might only affect certain OS and/or sound card combinations.