Why are my MPEG-2 and AC.3 files out of sync?

Hi,
I've read the various threads about sync problems, but have not been able to resolve mine. I am consistently getting audio that is one frame shorter or longer than my video.
I am working in PAL using FCP 4.5/DVDSP 3.0/A.PACK 1.5/Compressor 1.x/QT 6.5.2
I export my video from FCP as a QuickTime file, then compress it to MPEG-2. The audio is exported from FCP using QuickTime conversion to AIFF, then the AIFF file is converted using A.PACK.
(I was having much more severe sync problems when I exported the AIFF file using QT player)
I realize 1 frame is not so bad, but it should be spot on. Is this because of poor PAL support in FCP? Will upgrading to FCP Studio/DVDSP 4 help?
What about using QT 7.0.3 vs 6.5.2 ?
thank you....

What David said, with the addition that you can also just build the project and play the VIDEO_TS folder back with DVD Player to check sync, if you don't want to burn a test disc quite yet.

Similar Messages

Why are my header icons and toolbar buttons grayed out?

I purchased a used Macbook Pro from ebay. Appeared to be in good working order when I first started working with it, but I have updated from OS X 10.9.2 to 10.9.5 and downloaded Open Office program, set up my mail and went through the system preferences and personalized it. Also ran disk utilities. Then, this AM, when I restarted, the header icons on the right side are grayed out except for the battery %, the date and time and notifications. Also, in mail and safari, the toolbar buttons are blank (forward, back, print, mail, bookmarks, autofil, history and downloads). What happened? I went to the disk utility from the recovery partition (repaired disk and disk permissions). I also reset parameters. Don't know what to do next. Not sure if this is a hardware or software problem, but I am assuming it is software (OS X) related at this point. Please help.

Start up in Safe Mode.
http://support.apple.com/kb/PH14204?viewlocale=en_US
Giving away / Selling your Mac / Resetting the computer to the factory condition
http://support.apple.com/kb/HT5189
http://www.thesafemac.com/how-to-prepare-your-mac-for-sale/

Why are all my movies and tv shows now on my ipad with the icloud icon? How can i get rid of them?

Why are all my movies and tv shows from my library now on my ipad with the icloud icon? I have turned off all icloud related services. I have never used it. On top of that, my ipad now gets stuck on step 5 of the sync - waiting for changes to be applied and never finishes.
Help

Hi, go in Settings, under Videos turn off "Show all videos" this will remove the purchased videos to be displayed in the Video app. The same can be done with the music.
As for Step 5, connect you iPad and on the summary Tab, uncheck
"Sync only checked songs and videos". Then wait, it takes a while but this made it work for me after many restore attempts.
good luck

HT5085 I have found that at least 3 music videos that I had previously purchased are not available in my I-tunes music video list. I paid for them over a year ago, why are they not accessible, and why did they just disappear from my lists?

I have found that at least 3 music videos that I had previously purchased are not available in my I-tunes music video list. I paid for them over a year ago, why are they not accessible, and why did they just disappear from my lists?

Have you deleted anything from your iTunes library ? Have you checked to see if they are still on your computer, but not listed in your iTunes library ?
If not then do they show in the Purchased link under Quicklinks on the right-hand side of the iTunes store homepage for redownloading ? If they don't show there and others do and they are still in your country's store, then check to see if they are hidden : http://support.apple.com/kb/HT4919
If they are no longer in your store for redownloading (or you aren't in a country where music videos can be redownloaded) then you will need to copy them back from your backup of your library/downloads.

Why are the threads start and terminate randomly?

Hi there,
I got the program below. I am wondering why are the threads start and terminate randomly? Everytime, I run the program, it produces different results.
I know that these four threads have got same normal priority (should be 5), and under windows there is something called timeslice. Then these four threads rotate using this timeslice. How do we know what exactly the timeslice is in seconds? If the timeslice is fix, then why the results are ramdom?
Thanks in advance!
* To change this template, choose Tools | Templates
* and open the template in the editor.
package mythreadone;
* @author Administrator
public class MyThreadOne implements Runnable {
String tName;
Thread t;
MyThreadOne(String threadName) {
tName = threadName;
t = new Thread(this, tName);
t.start();
public void run() {
try {
System.out.println("Thread: " + tName);
Thread.sleep(2000);
} catch (InterruptedException e) {
System.out.println("Exception: Thread "
+ tName + " interrupted");
System.out.println("Terminating thread: " + tName);
public static void main(String args[]) {
// Why are the threads start and terminate randomly?
new MyThreadOne("1");
new MyThreadOne("2");
new MyThreadOne("3");
new MyThreadOne("4");
try {
Thread.sleep(10000);
// Thread.sleep(2000);
} catch (InterruptedException e) {
System.out.println(
"Exception: Thread main interrupted.");
System.out.println(
"Terminating thread: main thread.");
1. Firstly, I set in the main function:
Thread.sleep(10000);
and I run the program it gives:
Thread: 1
Thread: 4
Thread: 2
Thread: 3
Terminating thread: 1
Terminating thread: 3
Terminating thread: 4
Terminating thread: 2
Terminating thread: main thread.
BUILD SUCCESSFUL (total time: 10 seconds)
Run it again, it gives:
Thread: 2
Thread: 4
Thread: 3
Thread: 1
Terminating thread: 2
Terminating thread: 1
Terminating thread: 3
Terminating thread: 4
Terminating thread: main thread.
BUILD SUCCESSFUL (total time: 10 seconds)
And my question was why it outputs like this? It suppose to be:
Thread: 1
Thread: 2
Thread: 3
Thread: 4
Terminating thread: 1
Terminating thread: 2
Terminating thread: 3
Terminating thread: 4
Terminating thread: main thread.
BUILD SUCCESSFUL (total time: 10 seconds)
Why these four threads start and finish randomly each time I run the program? I use Windows, suppose there is a timeslice (i.e. 1 second), these threads have the same priority. Then the threads should start and finish in turn one by one. Am I right?
2. My second question is:
When I change the codes in the 'main' function into:
Thread.sleep(10000); -> Thread.sleep(2000);
it gives me the results like:
Thread: 1
Thread: 4
Thread: 3
Thread: 2
Terminating thread: main thread.
Terminating thread: 1
Terminating thread: 4
Terminating thread: 3
Terminating thread: 2
BUILD SUCCESSFUL (total time: 2 seconds)
Run it again:
Thread: 1
Thread: 2
Thread: 3
Thread: 4
Terminating thread: 3
Terminating thread: main thread.
Terminating thread: 4
Terminating thread: 2
Terminating thread: 1
BUILD SUCCESSFUL (total time: 2 seconds)
I tried several times. The main thread always terminates before or after the first child thread finished.
My question is why it doesn't output something like:
Thread: 1
Thread: 2
Thread: 3
Thread: 4
Terminating thread: 3
Terminating thread: 4
Terminating thread: 2
Terminating thread: main thread.
Terminating thread: 1
BUILD SUCCESSFUL (total time: 2 seconds)
or
Thread: 1
Thread: 2
Thread: 3
Thread: 4
Terminating thread: 3
Terminating thread: 4
Terminating thread: 2
Terminating thread: 1
Terminating thread: main thread.
BUILD SUCCESSFUL (total time: 2 seconds)

user13476736 wrote:
Yes, my machine has multi-core. Then you mean that if I got a one core machine the result should always be:
Thread: 1
Thread: 2
Thread: 3
Thread: 4
Terminating thread: 1
Terminating thread: 2
Terminating thread: 3
Terminating thread: 4
Terminating thread: main thread.
BUILD SUCCESSFUL (total time: 10 seconds)
???No.
>
How to explain my second quesiton then? Why the main thread always terminates before some of the child threads end? Thanks a lot.

Why are my AOL mail and AIM icons suddenly missing?

Why are my AOL mail and AIM icons suddenly missing. I can still access both by passing my mouse over the area previously occupied by the icons

Have you tried restarting or resetting your iPad?
Restart: Press On/Off button until the Slide to Power Off slider appears, select Slide to Power Off and, after It shuts down, press the On/Off button until the Apple logo appears.
Reset: Press the Home and On/Off buttons at the same time and hold them until the Apple logo appears (about 10-15 seconds).
No data will be lost.
If these don't work try Settings > General > Reset > Reset All Settings

Why can't I open and retrieve my files from iPhoto and my address book after importing the files from my Power mac G5 to my new Mac Pro? I get a warning that says the new OS on my Pro doesn't open files from a Power Mac. Any idea how I can fix this?

Why can't I open and retrieve my files from iPhoto and my Address Book after importing the files from my Power Mac G5 to my new Mac Pro? I get a warning that says the new OS on my Pro doesn't open files from a Power Mac. Any idea how I can fix this?

For your addressbook, export the files to vCard on the PowerMac, then bring them over to your Mac Pro. For your iPhoto, copy the Users -> yourname -> Pictures folder to your Desktop on the Mac Pro, and open iPhoto on the Mac Pro holding the command and option keys. Select the library file from that Pictures folder and open it. It should import all the pictures into iPhoto as part of the rebuild process. Other PowerPC to Intel migration issues are covered here: https://discussions.apple.com/docs/DOC-2295

Why cant I open D90 and D70 NEF files in photoshop7?

Why cant I open D90 and D70 NEF files in photoshop7?

I suppose you are using Photoshop Elements 7 ?
If so, you may have a problem similar to the one in this thread :
http://forums.adobe.com/message/5565719#5565719

HT1209 My Itunes Library and iPhone have fallen out of sync on music over the yearsare - how can I compare my itunes library with my Iphone to see what songs are missing from my library so I can then bring my Library up to date

My Itunes Library and iPhone have fallen out of sync on music over the yearsare - how can I compare my itunes library with my Iphone to see what songs are missing from my library so I can then bring my Library up to date

Hello Solid Buck,
Thank you so much for providing the details about the duplicate song issue you are experiencing. It sounds like you would like to remove the duplicate songs that will not play on your iPhone, but when you connect it to iTunes, iTunes only shows you one copy of the song on your iPhone.
In this situation, I recommend deleting the individual songs that do not play directly from your iPhone. I found the steps to do this on page 61 of the iPhone User Guide (http://manuals.info.apple.com/en_US/iphone_user_guide.pdf):
Delete a song from iPhone: In Songs, swipe the song, then tap Delete.
Thank you for using Apple Support Communities.
Best,
Sheila M.

My mini died. bought one used from a friend... all of my songs and books are on my iPhone, and I cant figure out how to get them onto this new computer. this is frustrating. the things i really want are purchases I've made from itunes store... help

My mini died. bought one used from a friend... all of my songs and books are on my iPhone, and I cant figure out how to get them onto this new computer. this is frustrating. the things i really want are purchases I've made from itunes store... help
!!!!!

Hey kevyg3,
I was able to find an article that I believe will help you move your iTunes purchases from your iPhone over to your new computer:
iTunes Store: Transferring purchases from your iOS device or iPod to a computer
http://support.apple.com/kb/HT1848
Hope this helps,
David

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

I rented a movie on iTunes and the sound is out of sync and the movie has now been removed?

i rented a movie and the sound was out of sync i reported it and got no respone and now the movie has been removed, help please??

Report it again using this link and ask for a credit.

Hd movies play choppy and the sound is out of sync in iTunes

I'm getting choppy video playback and the sound is out of sync in iTunes any solutions?

Control panel
Sound (Hardware n Sound)
Under Playback tab, highlight each device and click Properties button
Go to Advanced tab and change Sample Rate to 16bit 48000hz (DVD Quality) or 96000hz (Studio Quality), OK n OK.

TS4062 can't update apps cos my daughter's Apple ID password is required: even though I'm signed in via my Apple ID in settings (she uses my Mac for her itunes and didn't sign out, i synced my phone and it's been like this ever since) GRRRRR!

can't update apps on my iPhone 4s cos it says my daughter's Apple ID password is required: even though I'm signed in via my Apple ID in settings (she uses my Mac for her itunes and didn't sign out, i synced my phone and it's been like this ever since). And there's no option of signing her out, it seems? GRRRRR!

Fatlozza wrote:
can't update apps on my iPhone 4s cos it says my daughter's Apple ID password is required:
Anything Downloaded with a Particular Apple ID is tied to that Apple ID and Cannot be Merged or Transferred to a Different Apple ID
Apple ID FAQs > http://support.apple.com/kb/HT5622

Audio and Video become increasingly out of sync when watching a movie.

When I watch a movie from my itunes folder (purchased) the audio and video become increasingly out of sync. It is like watching an old Godzilla movie. I am using itunes on a Dell XPS M1530 running windows 7. Does anyone have a solution to this? I am not sure if I have a hardware problem or a software problem.
Thanks,
J

Hello Robert Sharrock,
The following article can help sort out most playback issues in iTunes for Windows.
Troubleshooting iTunes for Windows Vista or Windows 7 video playback performance issues
http://support.apple.com/kb/TS1718
Cheers,
Allen

Why are my MPEG-2 and AC.3 files out of sync?

Similar Messages

Maybe you are looking for