How does Dolby Digital work?
Answers: When you play DVDs, make sure surrounded by the DVD menu you pick either DTS or Dolby Digital.
On your DVD player, be in motion to the audio settings and make sure you output "bitstream" (or something similar) and not PCM.
On your digital cable set-top box, travel to settings and make sure you output DD and NOT PCM.
Finally, produce sure your speakers are connected correctly.
Good luck.
Dolby Digital 5.1 supplies 6 Discrete channels of nouns. Meaning all 5 of your biggest speakers can have different sounds coming out of it at once... and your sub-woofer (the .1) will enjoy the LFE(low frequency) Channel.
DTS is a similar type of setup, except it uses less compression for the nouns, so theoretically sounds better.
Although most DVD's use any of these formats, most TV broadcasts are Stereo (2 channels) and some even Mono(1 channel). Which means your system is taking 2 channel of information and converting it to 6 channels... sometimes this works, most times it doesn't.
If you don't transport your system a digital 5.1 signal, it will not be playing that. It'll convert the signal to a default stereo format. If you be watching a DVD, you'll notice that the system sounds fine.
(Also HDTV broadcasts within DD, so if you want multichannel audio for TV viewing, this would the only risk. - you need to distribute your receiver a digital signal contained by order for this to work)
Best setup to use for watching Regular TV is Stereo or Dolby ProLogic.
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