Quick audio question 5.1 v Dolby Pro Logic
 

I'm doing well for questions in this forum recently :lol1: Just goes to show how good you all are :notworthy

Just reinstalling a PC and have to choose a sound option for an ffdshow codec for video files (CCCP audio pack). The applicable choices are:

3/2 + LFE 5.1 channels
Dolby Surround/Pro Logic
Pro Logic II

Which is the better option? :D

(I have a 5.1 DTS audio out via Coax SPDIF from a X-Fi card)

Prologic is older than DTS 5.1

Ohh - a question I know the answer to!

The original Dolby Surround was 4 speakers - stereo at the front but mono through both of the back speakers.

Pro Logic added a front centre speaker channel but the rest was the same. My first amp was Pro Logic - bought in late 1993.

Dolby Digital 5.1 was 5 proper channels (e.g the back speakers were stereo too) and a .1 base channel for low frequencies.

DTS was similar to 5.1 but less compressed (I think)

Dolby - Better compression but lossy :( Leaves more room on the DVD for extras.

DTS - Lossless compression :)

cool, thanks ppl :)