No it does not process the sound as such, if the source ie: DVD player, tv or other unit has sound issues you will get nothing out of the soundbar, it's really just an amplifier and speaker system like a hifi, hope this helps
There is 1x 3.5 mm jack, red and white phono jacks, 3 hdmi in and 1out and an optical input.
It is a great system for the money. Just look aftet the remote. It is small and easy to lose
I hope this helps
There are HDMI and Optcal inputs as well as a input you can feed the headphone signal from your TV.
I use the latter.
The biggest draw back has been the size of the remote. It is so small its sometimes difficult to find.
That is why I use the TV's headphone output. The TV remote is enormous!