![]() There are instructions on how to get Quicktime to PassThrough the AC-3 of a file, but I have not gotten this to work properly. DVD player takes over the output (disables Optical as your system out, if selected), and sends the unchanged AC-3 bitstream to the receiver. Macs will only produce 5.1 from DVDs*, this is through a function (sort of hidden preference) called PassThrough. This is b/c the lousy sound driver doesn't create 5.1 channels, only 2. L=1, C=2, R=3, SR=4, SL=5, SW=6, hence, I only get L and C from source routed to L+R speakers. mp4 leaving the AC-3, my factory sound card is only able to produce 2 channels over optical in PCM format. I have this installed on my computer, yet, when I rip a DVD into a. I don't know about your windows set up, but with Mac you have to have the plug-in Perian installed in order for Quicktime to decode AC-3 (Dolby) soundtracks. I have a MacPro with factory Optical out, into a 5.1 receiver.
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