converting 7.1 analog to 7.1 optical

[neelkanth77777]

I want to connect my HT RT 40 Home theater system to my pc.It has 7.1 sound output with 6 analog ports,the problem is that my home theatre system has an optical input and an arc for connectvity.I want to convert 7.1 analog to optical output.Please Help me!!i have searched it on youtube bur didnt find a solution

 

[drivinfast247]

Doesn't the PC have an optical output?

 

[velocityg4]

Even if you found such a converter. It would cost more and have lower audio quality than just buying a 7.1 channel sound card.

https://www.newegg.com/Product/Product.aspx?Item=N82E16829102063
https://www.newegg.com/Product/Product.aspx?Item=N82E16829132084