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.)
““... We need the interruption of the night
To ease attention off when overtight,
To break our logic in too long a flight,
And ask us if our premises are right.””
—Robert Frost (1874–1963)