Quicktime audio decoder ac3 for mac

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The answer is, it can! Your Mac can pass AC3 , the file format used for Dolby Digital , directly to its optical audio output. Plug in an AV receiver that has surround sound decoders and what AV receiver today doesn't? Where things get a little iffy is with the source material and the software used to play it back. What could be simpler? If you have a video file on your Mac that includes an AC3 channel, and you use VLC to view the video, the AC3 information can be sent to your Mac's optical audio output or AirPlay, but it won't be sent automatically.

Do You Need A Different Media Player

Select the video file you wish to watch from the standard Open dialog box, and then click Open. If the video starts up on its own, click the pause button in the VLC controller at the bottom of the screen.

Problems with an ac3 Quicktime codec

If you're not hearing surround sound, make sure the video you're watching is playing back the appropriate soundtrack. Many videos have multiple soundtracks available, usually a stereo track as well as a surround track. If there are multiple audio tracks listed, look for one designated as surround. If you don't see a surround track, but you do see multiple audio tracks, you may need to try each one to see which is the surround track. Generally speaking, iTunes supports playback of surround sound, though it's important to note that most music and TV shows available from the iTunes Store don't contain surround information.

However, movies that are purchased or rented usually do include surround information. We hit a brick wall there. Still, we reached a great stopping point and Perian's installed userbase proves how valuable this tool became to so many people. Starting 90 days after the final Perian release, we will no longer provide support.


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We'll wrap up our loose ends, pack up our bags, and move on to new and exciting projects. Sure, they're not Perian, but they offer great software still under development. PS We would like to thank Erica Sadun for helping us write this letter, and for general guidance.

ac3 audio won't play in quicktime - VideoHelp Forum

How do I remove Perian? Open the System Preferences. Select the Perian pane and 'Remove.

QuickTime expects to know the location of every single frame in a movie in order to play it. Perian has to read in the entire file in order for seeking and playback to work. QuickTime supports hardware acceleration for some profiles of H. We do our best not to interfere, and some MKV files are known to work with hardware-accelerated decoding.

The Perian Project Team members

The term MPEG covers more than just a file type; it also defines audio and video compression methods. Perian allows playback of these audio and video compression techniques, but it does not allow the ability to open the MPEG file format.

Rewrap M2TS files with AC3 audio into QuickTime movies on Mac-ClipWrap

This is due to limitations within QuickTime itself, and we cannot solve it until Apple designs a better interface. See our rdar on the subject. Unfortunately no, the iPhone does not have QuickTime. We are concerned that the iPhone, while a great device, is just too slow to play the type of files that you would use Perian to play. SVN refers to the system which the developers use to store the source code that makes Perian. With FBX for QuickTime, digital artists can share, view, and interact with 3D content seamlessly, efficiently, and at no cost. SheerVideo is a powerful, faster-than-real-time nondestructive codec for production, postproduction, and archival.


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  • For uncompressed formats, SheerVideo doubles disk speed, disk capacity, and transmission bandwidth with perfect fidelity, bit-for-bit identical to the original. Wired actions allow a QuickTime movie to modify and control itself and other QuickTime movies via scripts embedded within the movie. EnSharpen is perfect for delivering cross-platform software training videos and online learning objects.