QT Audio = Multi Channel options. Any diference between them?

I see alot of options for the quicktime audio channel catagory but most of them look sort of the same.
For example, if I had a file with 4 channels of audio (shot on a multi-channel audio camera), which option should I use so that the compressed file has 4 channels of audio? Would it make a difference if i used quardraphnoic or 'L R Ls Rs'?

Four discrete channels as encoded by Dolby DIgital is discrete "quadraphonic" and the same as L, R, Ls, Rs
(for those unfamiliar with the term "quadraphonic" look at this • Wiki page)
Encoding suggestions in Compressor 2.1 and higher:
"Import Surround Sound Group" in the "File" menu
(or click the little speaker icon to the right of the name field in the Batch window).
Assign your four audio files (48KHz, 16bit format) as desired to the L, R, Ls, and Rs inputs.
Click OK.
From "Settings" menu, "Audio Formats" choose Dolby 5.1
In the "Inspector" window in the "Audio Coding Mode" drop down menu
choose 2/2 (L, R, Ls, Rs)
Uncheck (turn off) "Enable Low Frequency Effects"
Set "Dialog Normalization" to -31
Choose the "Preprocessing" tab and for "Compression Preset" chose "None"
To save a copy of your preset click the "save as" button.

Similar Messages

No multi-channel available with HDMI output in Audio MIDI Setup on Macbook Air mid-2011 !!!!!!!

Hi everybody !
I am currently facing some problem with seting up a surround sound system.
I looked everywhere on the web but i couldn't find any proper answer to this problem.
To sum up, i want to have a Dolby Digital or DTS surround sound when i'm playing a movie (with an AC3 audio track obviously).
I have a Macbook Air 13" Core i7 connected to a SAMSUNG Plasma TV via an iWires thunderbolt -> HDMI cable (bought on the same time as the MBA). This TV is connected to an amp via an optical cable and this amp to a 5.1 system.
When i am going to Audio MIDI Setup to configure the HDMI output, i cannot select any multi-channel option, only stereo !!!!
Is someone has any idea how to solve this problem ? I am struggling a lot and spent hours on that without finding any solutions !
Thanks a lot for your time !

Hello ckkzzzle,
I was looking into the issue you are describing and think I have a great article to help troubleshoot it. The article is called Apple computers: Troubleshooting issues with video on internal or external displays found here: http://support.apple.com/kb/ht1573.
Start here, and work your way down as needed:
Check connections
When using an external display be sure to check the following:
If you're using an Apple notebook, confirm the AC power cable or adapter is securely connected to the computer and the cable providing power to the display is also secure. It is always good to have your notebook connected to AC power when an external display is in use.
Confirm display adapters are fully seated in their respective connections and that they are supported models and for the computer and display. Refer to these articles to assist you with adapter compatibility and further configuration information:
Monitor and Display Adapter Table
About Mini DisplayPort to HDMI adapters
Apple Mini DisplayPort adapters: Frequently asked questions (FAQ)
Thunderbolt ports and displays: Frequently asked questions (FAQ)
Remove all display cable extenders, KVM switches, or other like devices and retest to determine if the issue is resolved.
If more than one video adapter is in use—or "daisy-chained"—troubleshoot by using only one adapter.
Example: A mini DisplayPort to DVI adapter connected to a DVI to HDMI adapter is an unsupported configuration because there is a series of adapters in use.
If available, try using a different display and or adapter (or use a different connector by using DVI instead of VGA, for instance).
All the very best,
Sterling

AAC and multi-channel audio

Can AAC be used to encode multi-channel audio, such as DTS-HD Master Audio?
DTS-HD Master Audio is an optional audio format in Blu-Ray. It uses lossless compression.
There are other audio formats from Dolby Digital, for example, that are used to encode HD audio in Blu-Ray. Can AAC be used to encode those as well, without any loss of information?
Is there any work in progress to make HD audio such as DTS-HD Master Audio available discretely on disc, like what the older DVD-Audio format made possible for 5.1 channel surround sound on disc?
Thanks.

What adjustments do you want to make?

Multi channel audio not exporting from fcpx xml as mono to logic always comes in a mixed surround

I have a long edit cut with 24 bit multi channel wav files (i.e 6 microphones on separate tracks but in a single wav file.)
This is very a very common production practice.
when i import into fcpx it defaults to seeing the files as surround. I change this to mono so i can mix and spit the audio between each mic.
The last step in the edit is to hand the mix off to the sound designer in logic.
however no matter how i export the xml file for logic. it always comes in as a surround file again instead of mixed mono files.
it shows up in logic as 6 tracks but all but generally only the top track has a mono mix of all 6 and the rest are blank.
it shows that all 6 are seen as 5.1 surround indicated by the icon.
interestingly if i just import the file directly into logic it comes in as 6 mono files. (the icon for mono showing and all are separate microphones)
Any ideas on how to get fcpx not to export the audio xml as surround? (it seems that it is locked to that on import no matter how i modify after)

Ok so i order to help anyone who is interested.
The only ironic solution to this problem i found was to use a plugin called xto7 to convert the xml to the old fcp7 format.
i then imported this into premiere pro.
this was then able to export an OMF that when imported into logic 10 that was using the correct 6ch mono setting as separate tracks.
Insane but it works until Apple fixes the incorrect meta data import in FCPX that sets the xml export to the default import that is always surround.
this is the only way i was able to send stems with all the edit points and fades for the sound editor.
If you don't have premiere lying around you maybe able to do it with fcp7 too we just didn't have it in this studio.
Fingers crossed Apple fixes the fcpx xml export.

How can I use all tracks from multi-channel source audio with Multicam clips?

I cannot figure this out. Working in Premiere I'm prepping for a 2 camera show, with typically 4 to 6 track dual-system audio recorded by the sound guy. I can sync, and make multicam clips any number of ways–whether sync by timecode, sync by audio, or eyeballing–but whenever I edit using the MC clip, Premiere mixes down all the audio channels into a stereo single track, and I cannot pick and choose which audio track from the original to use. With 2-5 people mic'd on lavs, I need to be able to choose which audio is either cut in or heard at any given shot.
Is there any way to have control in multicam clips over which track of audio gets edited into the timeline, or even: that all tracks of audio get cut in? It's very important for the editors to be able to see waveform (which also disappears for some reason in the mixdown) and pick and choose which audio is heard?
I'm sure this might be a simple fix, but I cannot get my head around it for workflow purposes for my assistant editors. We need to use multicam, but this audio thing is driving all of us crazy. None of us can figure out how to have a multicam clip and use it with control over what audio is cut in.

True, but what I need to be able to do is have my multicam sequence in the source monitor, and cut into my working sequence with either just the audio I need from the sound guy's multi-channel WAV, OR cut in all the sound and from then I can just enable or disable what I need or don't need. But also be able to match back to the Multicam source from my working sequence.
I don't want to have to open the synced sequence, and razor blade the things I need and have to copy and paste into my working sequence in order to have the full spectrum of my multi-channel mono lav WAV files...with their waveforms visible.
Essentially, I want my Multicam clips to load in the source monitor, and the ability to cut them into the working sequence without it mixing down the audio into a single track with no visible waveform–which is what it is doing currently. Can I choose to edit in either ALL of the tracks of the WAV file along with the camera shot I want, or control which audio gets cut in?

Multi-channel audio play

I want to play one or more simultaneous sources to each of several stereo outputs.
So either a multi-channel soundcard (eg 5.1, 7.1) or several cards, or even several multi-channel cards.
As far as I understand it the multi-channel cards are made up of several stereo channels (main, surround, centre etc).
I want to play different sound files (or even several files simultaneously) on EACH of these stereo outputs.
Just to prove that I am completely crazy, the reasoning behind this lunatic requirement is that the loudspeakers are all mounted under a model railway layout, and are to be used to create ambiance.
Clearly I cannot use the Java Sound Engine mixer as that can only drive the primary output.
I have searched several code examples on sun, and on jsresources but cannot find anything that uses m ultiple simultaneous outputs.
Can anyone point me at any useful starting point.
Many thanks,
Howard Amos

You are looking to do SPDIF passthrough.........
If you have that option in your DVD software you need to be sure you are passing the signal through untouched. There is a post of how to do this on the shark007.net forum,
http://shark007.net/forum/Thread-problem-spdif-passthrough-x-fi-decoder-Win7
and make sure that in PowerDVD or WinDVD or whatever player you are using, that SPDIF passthrough is selected. If you have Dolby digital or DTSConnect enabled you are sending a signal and encoding it, when your receiver is the device that wants to decode it.

Multi-channel audio? How ? (Dolby Digital, PCM etc.)

So,
Take 2 now support 5.1 channels audio out, at least for some HD rentals.
I am wondering if anyone has gotten that to work.
I have Apple TV connected via HDMI to my receiver (which can decode both the bitstream as well as linear PCM for multi-channel tracks).
However, I don't seem to get any multichannel, and the Dolby Digital toggle in Apple tunes makes no difference.
Has anyone gotten 5.1 to work, and if so, which which movie/tv show/trailer?
Thanks,
Dan

1. Not a great fan of detaching audio except in multicam clips. Generally I'd suggest using the expand audio components function to access the channels.
2. Yes. Switch off the auto tracks in the browser and only turn them back on for the clips you need in the project. With expanded audio components, if you turn the channels back on they will reappear in the timeline.
3. You use roles for this. I know time is tight for news, but taking a few moments to assign roles to the clips in the borwser, which you can do in globally, will allow you to export with separate tracks.

Multi Channel Audio Setup

I've been trying to follow various tutorials for setting up multi channel audio insruments and I always get stuck at the point where you select Output 3-4, 5-6 etc. from the Aux 1, 2. 3 etc. objects. I never have more than Output 1-2 to choose from. I usually use the built- in audio or sometimes a Lexicon Omega. Do I need another interface to accomplish this or am I doing something wrong. I've accomplished quite a lot of things with Logic, but this has been hanging me up for a year now. Any thoughts?
Thanks,
Tom
G4 iMac 1Ghz Mac OS X (10.3.9)

multi channel audio instrument doesn't require a special card or interface
any interface with stereo output should work
you need to make sure your audio instrument supports multi channel
logic pro only has Ultrabeat and EXS24 as multi channel
under the plug-ins choose multi channel instead of stereo or mono then choose what ever is under multi channel
example BFD, RMX, KORG LEGACY and other 3rd parties that support Multi
stash

Wanted: Multi-Channel Audio Interface for iMac & GB (USB)

I am looking for an affordable multi-channel audio interface for my iMac for use with Garageband. My goal is to playback old songs from my old computer (Atari ST) through my Yamaha gear and record the audio into GB so I can mix it. (READ: Not interested in transferring MIDI.)
My goal is to get at least 4 and ideally 6 channel/track recording in GB. I’m not sure if the multi-channel units I see, such as the Alesis MultiMix 4 or the Behringer Xenyx Q802USB send all channels to the Mac or if they mix it down to two channels first.
I’d prefer to mix all the channels in GB rather than pre-mix it. Also, I’d prefer to have 1/4” jacks; XLR would be a nice bonus. USB; since Firewire is going away and Thunderbolt is too new.
Any suggestions? I’m trying to keep this under $100. (Also, I know I can use multiple low-budget devices and aggregate them in Audio/Midi, but I do NOT want to go that route.)
Thanks.

As you imply, keeping it below $100 makes it tough.
Generally only the two channel interfaces are close to $100.
Check out Hang Times FAQ:
http://www.bulletsandbones.com/GB/Interfaces.html

Diferences between the java options -classpath and -Xbootclasspath

I have created several jar files containing my own clases using the j2skd 1.4.0
I am not understand the diferences between the following options:
1) Copying this files into the path .../j2re1.4.0/lib/ext/
2) Using the java option -Xbootclasspath/a
3) Using the java option -classpath
Options 1 and 2 works fine for using the clases on my jar files but I don�t understand why the option 3 is not working.
About my clases:
a) All are contained on a package example cvm.util
b) The class files that refers to this uses the directive:
"import cmv.util;"
c) Non of them replaces any original java class
Any suggestions?

The following command:
java -cp c:\Work\java\Smartt\cvutil.jar;c:\Work\java\Smartt\stutil.jar -jar C:\work\java\smartt\STServer.jar SAPMOVS.STR PRE
Generates:
Exception in thread "main" java.lang.NoClassDefFoundError: cvm/st/ST
at STServer.<init>(STServer.java:66)
at STServer.main(STServer.java:56)
But if I replace the -cp option for -Xbootclasspath/a:
java -Xbootclasspath/a:c:\Work\java\Smartt\cvutil.jar;c:\Work\java\Smartt\stutil.jar -jar C:\work\java\smartt\STServer.jar SAPMOVS.STR PRE
It works fine!!
or if I copy the two jar files into the ../lib/ext path
Then it also works pefect!
Thanks in advance

I have multiple lines for family members on my account. Can I still transfer upgrades between lines? I don't see the option any more.

I have multiple lines for family members on my account. Can I still transfer upgrades between lines? I don't see the option any more.

More everything. I have one line coming up on the 19th of this month and I'd like to transfer to another user with a later upgrade date. Just not seeing the option anywhere.

This is a very simple question about multi-channel audio playback

I have an mp4 file that i made and i made it 7.1 surround sound, and i'm pretty sure that this 7.1 surround sound works, as it can be played in VLC. i'm using netstream to load my files now. How do i make it so that flash can playback all 8-channels of sound? I suppose kglad would know the answer

Flash doesn't support multi-channel audio (yet?)

Multi-Channel output audio from Quick Time (or iTunes)

Hello all,
I am trying to get multi-channel AC3 audio output from QT and can only get two channel stereo. I have seen lots of related posts but can't quite get it.
I am trying to configure a Mac Mini to output properly via the TOS link port to my audio system. I get surround sound fine playing a DVD but not when playing a .m4v file that does give me surround sound when played on my Apple TV.
Should this be possible?

I appreciate the link Brent! I also had someone point me here http://fplanque.com/dev/mac/ac3-ac-3-5-1-surrond-sound-apple-mac-osx and all is good now.
Thanks!

No multi-channel audio from DVD Player or Quicktime?

I have the A52Codec 1.7.6 installed. The codec preferences are set to output multi-channel audio. I have my Audio MIDI setup speaker configuration setup for multi-channel audio and the speaker assignment tests are all perfect. VLC plays back files with AC-3 soundtracks in perfect 5.1 multi-channel sound. Final Cut plays multi-channel audio properly as well.
When I watch a DVD, it is decoded to stereo. The dialog on 5.1 always comes from the left and right speakers and never from the center channel. It doesn't matter whether I remove the A52Codec and try again the result is aways the same, 5.1 audio in Quicktime and DVD Payer gets decoded to stereo. It is not that extra channels are missing, if that were true I'd get no dialog at all.
What do I have to do to make the DVD and Quicktime multi-channel audio decode as multi-channel audio and not stereo.

I'm not sure if this will resolve your issue or not, but have you configured it using /Utilities/Audi MIDI Setup ?

Multi channel firewire audio interface

Hello, Is anyone using a multi channel firewire audio interface with a mac mini? eg alesis miltimix?

No issues. You'll probably want to invest in an external 7,200 RPM Firewire drive though since the Mini only has a 5,400 RPM SATA internal drive.
I used it with both TIger and Leopard as well as Logic Express 7.2 and Logic Express 8.
OS X supports it right out of the box so I didn't even need to install additional drivers.

QT Audio = Multi Channel options. Any diference between them?

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