Cable Box Digital 5.1 converted to Digital Stereo


The cable company broadcasts quite a few all music channels and I would like to play that digital output into my Dac.

But, it seems the digital output is only in 5.1 and won't work with my Dac.
Is there any device that can decode (convert)the 5.1 Digital to a 2.0 Digital?
128x128ozzy
FYI, I had to go out of the TV rather than the analog out of the cable box.....I had a nasty ground loop hum that only appeared in that config.
Well guys, I tried the optical out from my Cable and the Denon Receiver and then through a converter to a RCA Coaxial and still I'm getting the static(Bitstream).
I guess I could try the TV optical out, but then I would have to have my 85" 4K Samsung on when I just want to play the music channels.
Oh well, I guess its just not worth the trouble.
If you're with Xfinity, the new One boxes do pcm.

There is a product that will convert the bitstream to pcm, but I have no experience nor think it would work well.

However, lookup an article by Frank Van Alstine who I believe used such a product.
Did you try the analog outs from the cable box?

Having the TV on is not so bad. It tells you what is playing.