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Re: Surround Sound from QuickTime

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videomansf
Re: Surround Sound from QuickTime
on Feb 7, 2007 at 4:32:21 pm

QT 7 can contain up to (i think) 24 tracks out audio. This audio can be compressed (aac, other) or uncompressed (up to 192/24bit), and can be assigned to a output (L, C, R, RR, LR...) or to a language track (Eng, FR, GR..). To get the 5.1 audio out of the mac you need a audio interface (like the m-audio firewire 410) that has 6 or more analog audio outputs. QT7 can not use common 5.1 "stream" formats like Dolby Digital or DTS (this should be coming soon QT8?) so using the optical out to play QT audio will down mix 5.1 to 2.0 LPCM 44.1 or 48K audio.

For demo 5.1 files I use the apple QT trailer site. Most of the HD trailers are in 5.1 aac. download one at 480P, 720P, or 1080P, and look at the movie's settings under the audio tab.

Google qt 5.1 for more info.

VMSF


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Current Message Thread:
  • Surround Sound from QuickTime by Post Man on Feb 7, 2007 at 3:31:35 am
    • Re: Surround Sound from QuickTime by videomansf on Feb 7, 2007 at 4:32:21 pm





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