Samsung HT-P70 Manual page 12

Comparison of DTS and Dolby Digital(DD)
Samsung Electronics
Dolby Prologic
– Provide 4 channels (Front Left/Right/Center/Surround)
– Reinforced from Dolby Surround
Center channel is completely separated
Separation between channels gets higher
Dolby Digital
– Provide completely separate 5.1 channel
(Front Left/Right, Center, Rear Left/Right, Sub Woofer)
– Main sound format of home theater
– Reinforced from Dolby Prologic
– Rear surround left/right channels give different sound
– Support sub woofer reinforcing Bass
Dolby Digital is also called AC-301
AC-3(Audo-Coding-3) : 3rd digital audio coding Dolby Research Center has
developed.
DTS(Digital Theater System)
– Technology of providing 5.1 channel sound, higher quality than
Dolby Digital
– Home appliance produced to apply system installed at 1,800 the-
aters throughout the world.
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