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Audio AC3 Codec - Apple Community
https://discussions.apple.com/thread/4419601
Audio AC3 Codec. I am running QT 10.2 on OSX Mountain Lion 10.8.2. I installed an A52/AC3 Codec that is suppopsed to play AC3 Audio in QT. The instruction said to put 1 component in Library/Component and the other in Library/Quicktime. In the System folder there is also a Library/component and Library/Quicktime folders.
AC3 (a52) audio codec works in quicktime,… - Apple Community
https://discussions.apple.com/thread/2788644
Hi, I'm trying to edit a .m4v video (H.264 video codec, AC3 (a52) audio codec) in iMovie '11 on MBP 13. The sound does not work. However, I can hear sound in quicktime player and VLC. But I thought that when qt works, iMovie works. Unfortunately, it doesn't. In my other MBP 17 the same video works fine - I can hear sound in iMovie '11.
The Correct Way to Enable AC3 Passthrough with Quicktime
https://www.cod3r.com/2008/02/the-correct-way-to-enable-ac3-passthrough-with-quicktime/
Due to bugs in Apple’s Quicktime components, (rdar:5799879 reported in March of 2008, not fixed), some methods of reading AC3 will have the wrong channel layout. Furthermore, due to issues related to how multi-channel audio is handled, the decoder is unaware of the order QuickTime expects (rdar:6921431).
ac3 audio won't play in quicktime - VideoHelp Forum
https://forum.videohelp.com/threads/262700-ac3-audio-won-t-play-in-quicktime
My knowledge are limit but I think Quicktime 7 can't itself play AC3, Apple DVD Player can do it because have the components to do it, so you can hear AC3 audio on your DVD, I don't know if there is some kind of plugin in order to get AC3 working on QT (I use A.Pack, mpeg2works 4 and FFMPEGX to convert audio to AC3 all the time and never hear about …
QuickTime - QuickTime Components - Apple (HK)
https://www.apple.com/hk/en/quicktime/resources/components.html
QuickTime Player supports standard CEA-608 closed captions. Version 7.1.6 or higher is …
Perian - The swiss-army knife of QuickTime® components
Please consider removing obsolete QuickTime Components: FFusion, Xvid Delegate, 3ivX, DivX, DivX Decoder, XviD, msmpeg4v1, msmpeg4v2, AviImporter, EX_M4S2, Casio AVI Importer, AC3 Codec, and MatroskaQT. How do I remove Perian? Open the System Preferences. Select the Perian pane and 'Remove.'
Download Windows Media® Components for QuickTime …
https://www.microsoft.com/en-US/download/details.aspx?id=9442
Windows Media® Components for QuickTime are provided by Flip4Mac™. Click “Download” to visit the Flip4Mac™ download site.
Quicktime and ac3 audio | MacRumors Forums
https://forums.macrumors.com/threads/quicktime-and-ac3-audio.160600/
FYI, that AC3 codec doesn't work with QuickTime 7.0.2 (possibly 7.0 and up). I wish it did, but until Apple decides to address this issue we are stuck with VLC or trancoding the AC3 to AAC (losing the surround sound).
AC3 Quicktime Plugin - where to find?? - VideoHelp Forum
https://forum.videohelp.com/threads/250399-AC3-Quicktime-Plugin-where-to-find
Any Quicktime based app can now play/export files with an AC3 audio track (by "export" I mean export drom AC3 to something else), which isn't possible without a specific component. Jean-Philippe Schuck
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