Output audio through 2 different devices at the same time

Hey there first time posting on Tom's... Hopefully I get a good answer ahaha

Here's what I'm trying to do. I have an HDTV connected to my computer to serve as a monitor. I used an HDMI connection so therefore I get the computer's sound through the TV. I also have a 5.1 digital surround system that I use, connected through a Optical Digital Audio Cable.

Now my problem is, I can change between the 2 devices by going into "Playback Devices" (right clock the sound icon in the bottom right corner) and then setting either audio device as the "Default Device". However I want to play audio from both of them at once, that way I don't have to switch the settings everytime I decide to use surround sound.

Is there any simple way to do this? Or do I just have to resign myself to switching in between each time?

My specs are

Asus M5A97 motherboard

Asus Radeon HD 7850 graphics card with HDMI out (this is what my TV is connected to and gets Audio through)

Realtek HD Audio (onboard), I have both regular jacks and an Optical jack, I use the optical jack for my surround sound.


Thanks in advance for your help! :]