AC3 Audio Codec

I am running QT 10.2 on OSX Mountain Lion. I installed an A52/AC3 Codec that is supposed to play AC3 Audio in QT. The instructions 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. So where do the QT components go? Do they go in all four folders? I put them in all four folders but Quicktime still did not play the AVI files with the Dolbt 5.1 (AC3) audio.

After installing Perian follow steps 1 and 2 from:
<http://www.techisky.com/answers/does-perian-support-ac3-on-mountain-lion-10-8-ho w-to-fix.html#more-120>

Similar Messages

AC3/A52 audio codec for Premiere

Good day, everyone. I'm alive again.
I have a video with a A52/AC3 audio on it and apparently the premiere installed in my PC cannot decode it so I have to extract the audio with another software. Ain't there some other way (needless to say, premiere A52/AC3 codec) that I can import my video to my pr pro project in which pr can read its audio data?
I'm using prprocs3.

Thanks for the quick reply...much appreciated.
I don't have Audition with the laptop I'm on (don't think they included that with Cs5 bundle)...
but I'm trying Media Encoder instead as I write.....so thanks for the tip.
(I need to get this done within the next hour or so! Have already been working on it for about 2 hours)
I also tried Virtual Dub...I used the standard "Save AVI" feature...it produced another AVI file..that again plays fine in various media players...but when I import it into Premiere Pro...only the video comes in...and no audio track at all...
Various posts refer to using Virtual Dub to convert to DV AVI...but unfortunately I cannot find any explanation of how exactly to do this...there is no "Save or export to DV AVI" option I can find in Virtual Dub....(I've tried downloading a VFW Panasonic Codec...which apparently is of some help with this)
Other option might be After Effects I guess...or maybe a free video editor off the net?
Open to anything at this point!
Thanks!

Exporting 5.1 ac3 audio from Premiere Pro CS4

Hi there,
I wonder if anybody can help me out with exporting 5.1 ac3 audio from Premiere CS4 version 4.1.0?
I have a 3min long HD 5.1 clip that I need to cut down to 60seconds and add fade transitions to. The final clip will be used in a media player with very specific spec - the clip needs to remain HD 1080p with a frame rate of 29.97 and a maximum CBR of 38. The audio must be 5.1 aac. The format can be mpeg 2 or h.264. The overall quality loss needs to be minimal.
Up to now I have been cutting up footage that only needs to be stereo and I found the best way to to this while keeping quality was to use Prem Pro and export as mpeg 2 1080p 29.97, quality:5, bitratre: CBR 38, audio as mpeg layer 2 (as these clips were stereo only). These clips played back fine and looked great so I wanted to keep the 5.1 clip process as close to this as possible.
So far all I have been able to get from Premiere Pro is an audio codec called DVD_LPCM which the media player will not recognise. I'm a bit of a novice when it comes to 5.1 audio so I may be doing something obviously wrong...
- I have purchased the 5.1 surcode codec and its activated.
- I have started a new AVCHD (I need 1920x1080) 1080p 29.97 project with a 5.1 audio master
- The orignal file is an mpeg which I have pulled into PPro and selected Clip > Audio > Breakout to mono
- I take the 6 mono channels in the project panel and put them into thier own mono tracks in the sequence.
- the video I use is the original mpeg with the 5.1audio muted in the sequence.
- When i select each track in the project panel and go to Clip > Audio > Source channel mappings, I see that track has already been allocated a source channel. So I go to the Audio Mixer panel and adjust the 5.1 panners for each tyrack according to what the Source Channel Mapping window has told me - Audio 1 is is L, audio 2 is R, audio 3 is LS, 4 - Rs, 5- C and 6- LFE
- I cut the video and all the mono track to the 60seconds I need and export using these settings:
Video - exactly as before
Audio -
Format - Dolby Digital, Codec - SurCode, Audio Coding Mode: 3/1 (L, R, C, LFE, Ls, Rs - 5.1 Surround), LFE: on.
The clip exports with DVD_LPCM 5.1 audio. Is it to do with the AVCHD preset? Could anyone help me get aac? Any help would be appreciated.
Thanks in advance

Using AME and the SurCode Plug-in, here's how the dialog screen looks for the Audio Tab in PrPro 2.0. It should be similar in CS4:
You do have the Minnetonka SurCode DD 5.1 SS plug-in, right?
Good luck, and hope that this is helpful.
Hunt
PS - note that in the screen-cap, I have composited the dialog box, as though it fully displayed, with no need to scroll it. Depending on your display, you may need to scroll, and your scroll bars will look different from what you see here - just ignore that part of it.
Message was edited by: the_wine_snob - Added PS

Can I change audio codec when convert flv to mov ?

I just get Total Video Converter from App store to convert my downloaded flv to mov. My question is how can I change the audio codec to ac3, aac, or mp3?
Below is its screenshot:

A simple problem, I think you are beginner to this app. In the tool bar, you can find a button "Settings", click it, you will get a window named "Options", and there are 4 tabs: "Video", "Audio", "Resize", "Crop&Pad", and "Audio" tab is the right you need like below:
There, you can set your desired audio codec with option "Audio Codec"
Hope this can help you. Good luck.

Dolby AC3 Audio (code "8192") format

I tried to find in the QuickTime forum about this topic but no success.
I received this message trying to watch a movie:
This file contains a track in the Dolby AC3 Audio (code "8192") format. You may need to install a DirectShow decoder for this audio format in order to hear the soundtrack of this file.
The problem is that I visit about 15 discussions webpages about this "AC3 Audio (code "8192")" and what I really got? Nothing that really worked. What I found was for PCs, codec in .exe and so on, but for the Mac, zero. I even bought DivX for Mac and it was a deception. I looked at Apple/QuickTime/Components and I was again at DivX page...
Any help would be great. Thanks in advance!
Mario Lordeiro, Rio de Janeiro

http://perian.org/
http://discussions.apple.com/thread.jspa?messageID=10368675

Used Quicktime to export iMovie and play on a TV, but getting audio codec error

I created an iMovie 11 project and exported it using Quicktime as a HD movie to play on a one year old Samsung big screen TV. The movie file ended in .mov, which the TV would not recognize, so I changed the extension to .mpg and the video plays fine.
The problem I have is that during the first 3 or 4 seconds of the movie, I get an error pop up on the TV screen that the audio codec is not supported, obviously newer than the TV, right?
So I updated the TV to the latest firmware via Samsung's website and that all went as expected. However, the error message is still there.
The movie is made up completely of still images, so there is no audio to detach, and I can find no other settings to disable the audio portion of the movie.
Anyone run into this before and be able to share some advice, please?

I found that these audio codecs are supported:
AC3
LPCM
ADMPCM (MA, MS)
AAC
HE-AAC
WMA
DD+
MPEG (MP3)
DTS Core
Voris

No settings for Apple Lossless Audio Codec found in Compressor

For archiving reasons I have to convert many audio files to Apple Lossless (ALAC). So I thought it would be easy using Compressor 4 and and a suitable droplet. I was astonished that here are only settings for the following audio formats: AAC, AC3, AIFF, CAF, MP3 and WAV.
No Apple Lossless Codec in the settings?
Does anyone know how to create ALAC files

Thomas A. wrote:
This setting generates a QuickTime file with the extension .mov
Of course it does. Why would that be a problem? "Apple Lossless" is not a file format, it's a codec.
OK, if I change the extension manually to m4a it seems to be an ALAC file, but I am not sure if it a "correct" one in regard to the specifications.
There is no "ALAC" file format specification. What are you going to use the files for?
ALAC isn't specified at all. The audio codec is called "Apple Lossless", and it is a set of algorithms to encode audio data, and a specification for a bitstream of audio data encoded such. It can be put in various containers, the most common being MPEG-4 and Apple Quicktime, but nothing will stop you from using AVI, .mkv, .ogg or anything else as the container format.
If you're unhappy with Compressor, which only seems to offer the QuickTime container format for Apple Lossless-encoded audio, there might be other tools that will transfer it into another container while leaving the actual encoded data untouched.
Since the Apple Lossless codec is now free, mencoder might work, even for the encoding itself. I haven't checked MPEG Streamclip, Handbrake, VLC or others, which might also offer such options.
Quick tests didn't yield any success, but that doesn't mean it shouldn't work.
An alternative for lessless encoding is the "FLAC" (free lossless audio codec), which is usually stored in an ogg container file. I don't think Compressor offers that, although VLC does.
It seems that the exact thing you want is not readily available (i. e. mpeg-4 audio-only with Apple Lossless audio codec.)
Bernd

.avi files and audio codecs with Quicktime and other software

Apple Mac OSX 10.5.8, Samsung LED TV, Video Camera saving movie files as .avi, audio codec unknown (G-Spot codec is not supported on the mac so I can’t check)
As a well retired non-computer savvy person I am very confused when it comes to talk about different video/audio codecs. I have read so many articles my head is now spinning with information I truly cannot understand.
Using the above hardware, when I play an .avi file direct from my camera onto my new TV I get a perfect picture but the TV tells me “the audio codec is not supported”.
I have tried, using Quicktime Pro and others such as AVCWare Mac Video Converter and Divx converter, to convert the .avi file with unknown audio codec to an .avi using mp3 codec. This is successful but the camera will not play the file and when downloaded onto a flash stick the TV now tells me “not supported file format”. The TV gives me a Divx registration and deactivation code but I am not sure whether this refers to the TV or the flash stick!
To keep things short, all I want to do is edit/crop .avi files from the camera, save with a readable audio codec, put the files into the TV using a burnt DVD or play direct using a flash stick. The TV supports among other video formats Avi, MKV, ASF, MP4, 3GPP and audio being mainly MP3, AC3, LPCM, ADPCM
Hope someone can help please.
Many thanks Robin Welch

Hi George,
Thank you very much for your last post. One small piece of information from you regarding frame size was the final part to my jigsaw. I recently purchased a new digital camcorder and LED TV and getting them to talk to each other has taken me since December! Having installed MediaInfo as you suggested, I found the camera saved the .avi files with AAC LC audio codec (first piece of the jigsaw). Talking to the people at DivX about the problem brought up the fact that both my TV and Sony Home Theatre should be registered to play DivX files, this I did (second piece). Having reinstalled Perian and opening my .avi files in Quicktime player I tried saving the files as DivX to several profile options including Home Theatre with max 720 pixels (last piece). At last it works fine. Thank you for your help, I am very grateful.
Robin

MPEG videos with AC3 audio in iMovie

Hi there,
Aplle seems to totally ignore AC3 audio streams (at least in MPEG videos)! Why?
My JVC cam corder records *.MOD files on its hard disc. Those files
are in fact MPEG2 files, but with AC3 audio.
Renaming the files makes them playable using the Quicktime Player, but
without the sound
MPlayer is able to play them correctly, but that does not help me,
because I want to use the videos in iMovie and iDVD.
I tried installing the 'AC3 Codec.component' (what is supposed to fix
the problem for AVI files)
and now I installed Perian, which does not do the trick either.
I can ofcourse use ffmpeg to convert the files, but that means a
quality loss and a lot of work I wanted to save by buying a Harddisk
camcorder, so I could skip the time consuming conversion from DV tapes
to mpeg.
I there anybody out there with a solution?

QuickTime doesn't like to play the multiplexed sound on mpg videos. The QT Plugin ONLY supports video playback and NOT the audio track of such content (as you have found out).
I suggest you look at VisualHub software ( http://www.techspansion.com/ ) to convert your files to DV. It works with my problem mpg-4 files with multiplex audio. It runs in a free trial mode so you can verify it does what you want before buying it.
F Shippey

HT1338 why cant i play an AC3 sound codec avi on quicktime?

can you help me find a sound codec component of quicktime, an AC3 sound codec is needed, it says it needs a required AC3 sound component of quicktime, I dont know what it is and where to find it, can you help me with this?

Perian codecs for Quicktime - http://www.perian.org - plugins to add functionality to Quicktime for playing additional audio and video formats. 2012- No longer being developed but may still work.
Quicktime audio problems, Perian, VLC - http://discussions.apple.com/message.jspa?messageID=9013669 - read note about uninstalling prior DIVX support before installing Perian.
Media Info - http://mediainfo.sourceforge.net - to get details of codecs used in multimedia

I'm on OS X 10.6.8 and have a .mov file which plays on QuickTime 10.0 but with choppy video and the sound is out of sync???? File details are Video Codec: DNxHD (AVdn) Resolution 1920x1080 Audio Codec: PCM S24 BE (in24) Bitrate: 1536kb/s Solutions?

I'm on OS X 10.6.8 and have a .mov file which plays on QuickTime 10.0 but with choppy video and the sound is out of sync???? File details are Video Codec: DNxHD (AVdn) Resolution 1920x1080 Audio Codec: PCM S24 BE (in24) Bitrate: 1536kb/s. Any ideas?

Question: Is all the source footage shot in 16 bit audio or is some also shot in 12 bit?
http://docs.info.apple.com/article.html?artnum=42973
http://www.kenstone.net/fcphomepage/idvd_6stone.html
http://docs.info.apple.com/article.html?artnum=93006
http://docs.info.apple.com/article.html?artnum=303550
http://docs.info.apple.com/article.html?path=iDVD/6.0/en/397.html
http://docs.info.apple.com/article.html?artnum=61636
http://docs.info.apple.com/article.html?artnum=302925

HT3775 This file contains a track in the Dolby AC3 Audio (code "8192") format. You may need to install a QuickTime component for this audio format in order to hear the soundtrack of this file.

This message appeared and does this just mean I need to upgrade Quick time player? This file contains a track in the Dolby AC3 Audio (code "8192") format. You may need to install a QuickTime™ component for this audio format in order to hear the soundtrack of this file.

Luckily, there are DOZENS of video/media players and extensions avaliable for the Mac. Many of them are FREE, some of the better FREE ones are...
PERIAN (quicktime extension)
http://perian.org/
QUICKTIME 7.6.6
http://support.apple.com/kb/DL923
VLC media player
http://www.videolan.org/vlc/
NICEPLAYER
https://code.google.com/p/niceplayer/
And if none of those work, there is a possibility that those video files may be corrupted.

I am using iMac OS 10.7.2 with Garageband'11 6.0.4. I can't record sound from mixer Behringer X1622USB using USB out. when I connect the mixer to iMac via USB appears USB Audio CODEC on Sound and preferences but no sound from mixer to iMac. Need help.

I am using iMac OS 10.7.2 with Garageband'11 6.0.4. I can't record sound from mixer Behringer X1622USB using USB out. when I connect the mixer to iMac via USB appears USB Audio CODEC on Sound and Preferences but I can't get no sound from mixer to iMac only sound from iMac to mixer. I only can record sound using microphone line in. Please help.

Eric,
Thanks for your reply. Realtek audio works only in playback. There is a stereo mix in the mixer but the recording controls are not operable with no sliders in the mixer for any recording option. Slider controls appear to be grayed out. Can't figure out how to enable them. Downloaded newest drivers to no avail.
The M Audio control panel has no apparent option for recording stereo mix. Adobe ignores the sound from the DVD or CD and shows flatline.
I'm trying to record the sound from the DVD not rip the track.
When I go to Audio Driver Setup and select Audition 3.0 windows sound, there is no input device installed.
I'm thinking of going back to a decent internal Soundblaster card like I have on my 8 year old machine I am replacing.

Update 4.1. and AC3 audio

Alas no AC3 audio, anyone else experiencing this?

Bogus! I think that a lot of folk were. I could have sworn that I saw something about it being part of 4.1 - probably just one of those rumors...
Thanks for reporting, even if it's bad news,
Hunt
[Edit] I'm probaby thinking back to an issue with the SurCode DD 5.1 SS plug-in. I know that efforts to fix those issues were underway. That is obviously a problem affecting things in one way ->, but I'd hoped to see things fixed in the other way <-. Hm-m, OK, so it ain't perfect.

IDVD 6 and AC3 audio

Does iDVD 6 do AC3 audio? No? Still only bloated PCM audio, right?
...reportedly iMovie 6 STILL has the same jaggy still image bug that has haunted us since v3 and which keeps the iMovie forums busy. I'm afraid that many other old bugs are still there.
AC3 audio support for iDVD might have been a good cause for me to upgrade but maybe I'll have to use iWeb as an excuse to take a dive into the new features and bugs in iLife 06...

So what does it look like and when does it happen?
http://www.sjoki.uta.fi/~shmhav/iMovieHD_bugs.html#jaggystills
http://www.sjoki.uta.fi/~shmhav/iMoviejaggystill.jpg

AC3 Audio Codec

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