Can I direct the audio in Fallout: New Vegas to another device?

I'm playing New Vegas on my PC. I want to redirect the audio to my monitor's speakers while my default audio device is set to my TV. I couldn't find anything in the options, is there somewhere else I can specify which audio device New Vegas uses?

You can use a tool called "Virtual Audio Cable" which is capable of rerouting any audio source on your PC. It is paid, but the trial allows you up to 2 virtual cables:

http://download.cnet.com/Virtual-Audio-Cable/3000-2168_4-10067766.html

Another one claims to be free, but I didn't try it yet so I cannot comment it's quality:

http://www.virtualaudiocable.net/

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