1) Watch movies. Passthrough DD/DTS to your speaker/receiver. Your speaker/receiver must be able to decode DD/DTS, otherwise, no sound.

2) Play games. Games don't do DD/DTS, you will need DTS Connect/Interactive or DD live to encode the sound to DD/DTS before sending to your speaker/receiver. Again, your speaker must be able to decode DD/DTS, otherwise, no sound.

You sure your speaker can decode DTS/DD??