A newer Dolby Pro Logic IIx system is also now available, which can take two-channel stereo, Dolby Surround (sometimes called Dolby Stereo Surround) and Dolby Digital 5.1 source material and up-convert it to 6.1 or 7.1 channel surround sound.
Read more about this topic: Dolby Pro Logic
Famous quotes containing the words pro and/or logic:
“It is sweet and honourable to die for one’s country.
[Dulce et decorum est pro patria mori.]”
—Horace [Quintus Horatius Flaccus] (65–8 B.C.)
“It is the logic of our times,
No subject for immortal verse—
That we who lived by honest dreams
Defend the bad against the worse.”
—Cecil Day Lewis (1904–1972)