Loss of audio sync

I use FC Pro 5.0.4 with the video card Digital Voodoo D1 64 RT (driver 7.5) and with the sound card AES-32 of RME, because in the past I've had problems with the audio section of Voodoo (many pops and clicks). Both are connected to a Leitch SPG-1601, one to BB out and the other to word clock out. The capture is OK but when I edit to tape I have a random loss of sync of 2 or 3 frames, the audio comes first than video. When I edit to tape FC PRO show me this warning:
The selected audio and video devices may not match:
- Digital Voodoo.....
- Hammerfall DSP AES-32
Please verify that the audio and video outputs are externally routed to the intended device(s). Do you want to proceed?
The settings on the RME for me are correct and also on the Voodoo.
I don't know what to do. Please help me.
Power Mac G5 Mac OS X (10.4.5) 2 x 2 Ghz, 3 GB RAM, Quicktime 7.0.4
Power Pc G5 Mac OS X (10.4.5)

It appears it occurs when you use an external monitor. If you turn the monitor off it syncs up.

Similar Messages

Exported Final Cut XML from Imovie09 causes loss of Audio Sync

I have recently upgraded to ILife09 and tried a process that always worked in ILife08 but now get Audio Sync problems.
I have created an Imovie project that is 2hours and 50 mins long and wanted to export it to Final Cut Express as XML. This used to work 100% with Imovie08. However, with this latest version of Imovie, when exported to Final Cut Express, the first 45 mins of the XML movie is well out of sync (Audio / Visual).
Has anyone experienced this?

Hi Roberic,
there is a bug in iMovie '09 that causes loss of audio sync when you use custom slow/fast motion. This has been experienced by many users. See for example this thread:
http://discussions.apple.com/thread.jspa?messageID=9152271
I don't know if this applies to exports to .xml but it could well be that your problem lies here. There are some workarounds, being the easiest one to only use what the slow motion slider snaps to instead of entering custom speed percentages.

Loss of audio sync when importing Samsung Galaxy 2 (GT-I1900) video to Premier Elements 10

I am loosing audio sync when I import video from a Samsung Galaxy 2 GT-I1900 phone even when using settings chosen by Premier Elements 10.
The file plays OK in Windows 7 media player.
I have tried using both direct import from the phone and transferring the file separately without solving the problem.
The Premier Elements is version 10.0(20110902.Mol11.B123.280463)
Unlinking the audio and video makes no difference.
VideoReDo reports the file as :
File:                                     Name : C:\dcim from samsung\DCIM\Camera\20121121_114639.mp4
                                           Size : 0.886 GB
                                       Duration : 00:09:45.22
                                       Mux type : MP4
Video:                                Encoding : H.264
                                  VideoStreamID : x201
                                     Frame rate : 29.91 fps
                                  Encoding size : 1280 x 720
                                   Aspect ratio : 16:9
                                Header bit rate : 20.000 Mbps
                                     VBV buffer : 380 KBytes
                                        Profile : Baseline/4.0
                                    Progressive : Progressive
                                         Chroma : 4:2:0
                                   Entropy mode : CABAC
                                       Bit rate : 11.626 Mbps
Audio Stream: 1 (Primary)                Codec : AAC
                                         Format : ADTS
                                       Channels : 2.0
                                       Language : eng
                                            PID : x202
                                  PES Stream Id : xC0
                                  Sampling rate : 48000
Letting VideoReDo simply rewrite the file resulted in loss of all but the first few seconds of audio.
Elements seems to have imported the file as NTSC-AVCHD-AVCHD LITE 720p 30fps
The computer is running Windows 7 Professional 64 bit version Service Pack 1 kernel 6.1.7601.17944 (reported by SIW)
The computer motherboard is a Gigabyte Z68x-UD3H-B3 with an Intel Core i5-2500 CPU at 3.30GHz. Memory is 4GB.
I note that others have had similar problems with non video recorder recordings.
Can you suggest any file conversion of the original that will work – I have tried several with no improvement in the final result.
And can anyone shed light on what is the basic cause of these problems?

According to the Adobe installation information the trial version of Premiere Elements 11 is fully functional and the watermark is only present until a licence code is purchased.
I have edited AVI footage from a camcorder using the program with no problems (and no loss of audio sync) and the watermark is also present with this.
The odd placement of audio and video was caused by my not dragging the clip carefully enough.
What is odd is that the clip plays completely normally using WIndows Media Player and VLC Media player so I would expect Premiere Elements to be able to handle it without problems.
I think that there is some sort of bug in Premiere Elements' handling of mpe4 files (both in versions 10 and 11) rather than there being anything wrong with my computer.
Is there some way of communicating this directly to the Adobe programers ?
I enclose screenshots of the project settings:

Slow loss of audio sync during playback

When watching video podcasts. I nptice that the audio slowing falls out of sync with the video. I am running quicktime that comes with iTunes 10.1. Any ideas?
Regards
Phil

I nave updated Quicktime which did not work and then iTunes with Quicktime and I still get the out of sync problem.
One other issue is that when a video or video podcast ends iTunes freezez and appears in task manager as "No Responding".

Loss of audio panning effects with timeline audio of Sync type "Stream"

I have a Flash animation which is loaded into a parent master Flash file. In the animation, there is voice audio embedded in the timeline which is synced with a character animation. The Sync type of the audio is set to Stream, which is essential for the mouth movements to match the audio. When I try to pan the voice audio so that it comes only out of the right speaker, it sounds fine during preview playback, but after publishing, all of the panning effects are lost. If I change the Sync type to "Event" or "Start", the panning effects work fine, but the audio is terribly out of sync with the animation.
The source audio is a mono audio file. Not sure if that has anything to do with it. I've tried changing the publish settings for both the parent and the child animation Flash files to be Speech, Mp3 mono, Mp3 Stereo and just about every other option, with no desirable results. I have also tried publishing and running the animation without loading it through the parent file, also no results.
Is there some kind of rule in Flash about Stream versus Event audio and panning? Do I need to use a stereo audio source file? I don't currently have access to the original audio files, but I can get them. Are all Stream type sounds automatically converted to mono at runtime or something??
Thank you thank you thank you

According to the Adobe installation information the trial version of Premiere Elements 11 is fully functional and the watermark is only present until a licence code is purchased.
I have edited AVI footage from a camcorder using the program with no problems (and no loss of audio sync) and the watermark is also present with this.
The odd placement of audio and video was caused by my not dragging the clip carefully enough.
What is odd is that the clip plays completely normally using WIndows Media Player and VLC Media player so I would expect Premiere Elements to be able to handle it without problems.
I think that there is some sort of bug in Premiere Elements' handling of mpe4 files (both in versions 10 and 11) rather than there being anything wrong with my computer.
Is there some way of communicating this directly to the Adobe programers ?
I enclose screenshots of the project settings:

Export as QuickTime Movie - lose audio sync

I have a 10 minute project that basically is a sequence of 10 nested sequences. It is an HDV project. I need to export it as a QuickTime Movie to maintain the ability to show it in HD. When I do so (using Export->QuickTime Movie - I am not using "Using QuickTime Conversion"), I maintain "Current Settings". The resulting .mov file, when played back in QuickTime Player (or anything else) has a progressively severe loss of audio sync. This is not present when playing the project within the timeline in FCP (6.0.3).
I have tried opening the project on a different computer with a virgin version of FCP 6.0.3, with the same results. I also made sure to render the individual sequences as well as the master sequence. I created a new sequence and added the individual chapters again, with the same result. I tried using the Media Manager to bring the project over to another computer - same problem. I also took this to an Apple One-to-One class with a FCP expert who couldn't figure it out either.
I could really use some help here.

First of all, thank you for responding.
I don't have a capture delay. The audio rate is 48 khz.
Interestingly, I had previously tried the separate export and stitching you suggested, but a strange thing occurred. If the resulting quicktime movie was created through a Save As... command, you wind up with a self-contained movie. When I did that, I started to get weird audio repetitions or dropouts as the movie went on. On the other hand, if I left it a reference movie, this didn't happen.
Anyway, this is a workaround, but it means that the whole thing has to be done over every time I make any change at all, and I am also concerned about getting rid of this problem for the future.
Any other thoughts?

FCP Audio Sync Loss

I am using Final Cut Pro 5.0.4. I just loaded Leopard and now my audio sync is at least 20 frames off. All clips before the Leopard upgrade work just fine but any new clips are not sync'd.
Does FCP 5.0.4 not work with Leopard..... if so, will udgrading to Fianl Cut Studio 2 solve this problem.
Thanks.

can't you upgrade to FCP 5.1.4? that is the latest FCP version of 5.

Premiere CS6 Audio-Sync Late

I downloaded and installed Adobe Production Premium CS6 TRIAL on two separate PCs and the issue persists on both.
Basically after I encode with video in WMV v7 codec the audio is in sync at the beginning but drifts over the course of the movie and by the end (100 minutes later) it is late by 3-4 seconds.
The video and audio are perfectly in sync in the Premiere video monitor, just not after export.
Both PCs are fairly new, one 9 months old and the other 2 yrs old, plenty of RAM, Windows 7 Professional, etc. The hardware/software does not seem to be the reason anyhow since CS5.5 encodes it just fine, all in sync.
The source video is a h264 movie, 720x486 1Mbps. I have a timeline where I match that to a French MP3 audio and export it to the following video/audio specs. The MP3 portion makes no difference since even just exporting the h264 by itself to the codec specs below will result in the original English audio track being late. Even using a different source format makes no difference, same late audio results.
I tried exporting both directly and from Adobe Media Encoder, same result (as I would have expected).
The export format is this:
Video:
Windows Media Video Version 7
720x486 Progressive
CBR, 500kbps
50% quality
1 second keyframes
5 seconds buffer
Audio:
Windows Media Audio 9.2
128kbps Stereo 48kHz
The same exact timeline exported using Premiere CS5.5 work just fine, as I mentioned earlier.
I tried exporting another timeline to QuickTime Animation (it just happened to be the codec we used for that high-res project) and that is in sync.
At this point I am at a loss since the sync issue can't be due to the fact that this is the TRIAL version, it would make no sense since the WMV codec is free.
I think this is clearly a bug. What do you think? Any help is appreciated.
Valerio

I had a similar problem with cs6 encoding wmv filess with audio out of synch. ALSO the video looks wicked interlaced, or something. not sure of the technical term for what I am seeing but there are noticable horizontal lines especially noticable when the image pans. since i edited this in cs6 i couldnt open it in cs 5 so i had to export it as a .mpeg and open THAT in 5 and then recode it to a wmv. which amazingly enough looks just fine (for a wmv). I am about to migrate all this to a new computer with much more RAM , a i7 3930 with a SSD and a gtx570, so I will wait and see how it performs over there.

FCE and QT PRO Analog Capture Audio sync problems

I have had major problems importing analog content into a DV quicktime movie and having the audio match.
First example: using a sony digital 8 camera with old hi-8 tapes (the camera does the analog to digital conversion) I open final cut express HD capture now or new movie recording in QT pro, and go for the whole tape or tv show. beginning is usually ok, but if i stop and start the camera, fast forward through commercials while capturing, or let the source end before i stop the capture It seems the audio becomes un-synced. usually lags by 1 sec or so, but sometimes the audio comes early by a few frames. sometimes progressivly getting worse later in the capture, sometimes the whole thing is off by the same amount. If i capture between camera starts and stops i have no problems.
Second example: using a pyro AV firewire analog converter, I get the same behavior when trying to capture in Final cut Express HD and QT pro.
My guess is that since there is no timecode on the analog source that somehow messes things up, but why do these programs shift the audio on me?

Most likely cause is your photographer changed the audio rate from 44.1k or 48k to something else.
Aside from that, no, it's highly unlikely it is the software. It's easy to blame FCP for this stuff, and we love to do it, but the capture from DV over FW is a complete clone of a digital file, nothing is being changed by FCP or QT during the process, unless your settings have been tweaked and that's a user decision.
If simply sliding the audio back into sync is not an option, dub the tapes to another DV deck via FW (producing a clone, not a generational loss) and capture form the dubs. You can experiment with a short take or two.
If the audio sync issue persists, it's the original footage, not FCP.
bogiesan

Problems with Audio Sync and Rendering

In both problems what happens is NOT consistent. If were, would think was a setting or something I was doing wrong.
About the rendering problem. I capture either through FCP Log and Capture or through my analog to digital "box", Formac Studio TVR. In both cases record in DV setting. When I then Import these files about 3 out of 4 times they need full rendering. But doing all things the same, there is that 1 out of 4th time where no rendering is needed at all. Does not seem to matter whether I capture through FCP or Foremac. Results seem the same. Like I said to begin with, if was consistent would figure that is just how the program is. But due to the time it takes to do a render, sure would be nice if could be avoided some way.
Regarding the Audio Sync. At times, maybe 1 out 10 times, the audio is bad. It begins at the beginning of the film being out of sync maybe two or three frames. But then every 10 minutes of film it progressively get's worse, losing a good 6 to 10 frames as one goes. I can fix by doing a lot of cutting and then moving the film around till it is in sync again, but as you can imagine takes a LOT of extra work. Any ideas as to why this is happening and what could be done to prevent in future??
Thanks in advance for any help you can provide.

I've used flip4mac for about a year and have had no problems with it. I mostly use it to export preview versions for windoze people. The quality is very good, though it takes significantly longer to export than a similar-quality quicktime movie.

How to stop the spinning ball/pizza that is stalling repairs to project on imovie 09? on macosx10.5.8 using iomega and superspeed ext h.d. as storage for the events and projects archive of a wedding video that has had audio sync problems on all share form

How to stop the spinning ball/pizza that is stalling repairs to project on imovie 09? on macosx10.5.8 using iomega and superspeed ext h.d. as storage for the events and projects archive of a wedding video that has had audio sync problems on all share formats (iDVD, mp4, and last of all iTunes). The project label now carries signal with yellow triangled exclamation “i tunes out of date”.
To solve the sync problem I’m following advice and detaching sound from all of the 100 or so short clips. This operation has been stalled by the spinning ball. Shut down restart has not helped.
The Project is mounted from Iomega and superspeed ext hd connected to imovie09 on macosx 10.5.8.
What to do to resume repairs to the audio sync problem and so successfully share for youtube upload?

How to stop the spinning ball/pizza that is stalling repairs to project on imovie 09? on macosx10.5.8 using iomega and superspeed ext h.d. as storage for the events and projects archive of a wedding video that has had audio sync problems on all share formats (iDVD, mp4, and last of all iTunes). The project label now carries signal with yellow triangled exclamation “i tunes out of date”.
To solve the sync problem I’m following advice and detaching sound from all of the 100 or so short clips. This operation has been stalled by the spinning ball. Shut down restart has not helped.
The Project is mounted from Iomega and superspeed ext hd connected to imovie09 on macosx 10.5.8.
What to do to resume repairs to the audio sync problem and so successfully share for youtube upload?

HP Mediasmart TV recordings lose audio sync

I have a HP Dv5 1235dx laptop and I am using a Kworld UB435-Q usb tv tuner stick to watch and record free over-the-air hdtv.
My issue is that when I record a program with HP Mediasmart TV the audio loses sync with the video. It starts out ok, but gradually goes out of sync the longer you record, so that by the end of an hour long show the audio is about 2 seconds off which is extremely distracting bordering on unwatchable. I can record programs with Windows Media Center and it has no audio sync problems, but WMC doesn't pick up all the channels and doesn't have as nice of an interface and program guide as HP Mediasmart TV.
Does anyone else have this issue, or know of a fix for this? I've also noticed that the recording quality options are greyed out in the settings menu, so its not like I can even try a lower quality setting to see if it makes a difference.

jlewis wrote:
I just discovered the same problem.
I have an HP dv8t running Win 7 64-bit. Last night I recorded about 2 hours of a football game. When I watched it later the video and audio gradually moved farther & farther out of sync. On a football game, you rarely see people's lips when they are talking anyway. It did seem like the announcers were slow to react, though! If it was a regular TV show or a movie, I could not have watched it at all.
Another strange occurrence -- I first replayed the recorded video in HP's Mediasmart player. After about 45 min. the video started getting choppy. The audio remained smooth, but it seemed like the video was dropping frames. It got worse and worse until we were seeing 1 second (or more) jumps in video. I shut down HP's player and opened the video in Windows Media Player. It played fine -- at least the video did not skip. The audio was still out of sync by a second or two.
- Jeff

Audio sync problem with videos imported from iPod Touch

I have an iPod Touch 4th Generation that I used to shoot video at a family birthday party. When I imported the footage into iMovie '11, the audio is not in sync with the video (video is about two seconds behind audio) and there is only the left channel of audio. I verified that the video on the iPod plays just fine--no audio sync problem, both left and right channels work. I just upgraded to iOS 5 on the iPod Touch. The iMac is running Snow Leopard 10.6.8.
As a workaround, I can import the video into iPhoto instead. When I play the video in iPhoto, there are no audio sync problems and both channels of audio can be heard. I have imported other iPod Touch videos successfully into iMovie '11 in the past few months, but this has been the first time these problems have occurred. Any help would be appreciated.

Premiere cannot handle clips with variable framerate.
Your converted clips need to have constant framerate.
Otherwise use a converter like Handbrake.

Loss Of Sound Sync - FC7

Hi Gang
Working with FC7 in Snow Leopard 10.6.8 and an older Mac Pro.
Exported a 70 minute clip and noticed loss of Sound Sync, (about mid way thru in a QT File). The clip is a mixture of assorted clips.
Divided the 70 minute clip into 3 separate exported clips which produced proper 'Synced Sound' in each clip.
This problem used to occasionally happen in FC6 - Does anyone know a fix or work-around?
Thank You
Mike

"You've been in these forums long enough to know that FCP doesn't work well with non-FCP media"
Shane - I don't appreciate your constant negative replies - do me a big favor, and avoid responding to any more of my posts.
Yes, I've been here long enough to know you've always had a condescending attitude ....
Your approach is NOT helpful. Its rude and disrespectful ....

Unable to Switch Audio Sync Settings

Hey everyone,
I'm trying to create an animation based off of a 5-minute mp3 audio recording. I need to be able to switch my audio sync settings to Stream so that I can preview audio anywhere in my animation. Currently if I press play just anywhere in the animation it doesn't play the audio. I have to play from the beginning to hear.
After doing some searching on the Internet, I figured out I have to switch my audio sync setting to Stream so that I can play audio anywhere in the timeline. However, the only option I have available is Event. The other ones are greyed out, as the screenshots below testify. Any help would be appreciated. Thanks!
Hardware and Software Statistics:
Adobe Flash Professional CC (CS6) - Version 13.1.0.226
Windows 7 Home Premium - Version 6.1 - Build 7601: Service Pack 1
Intel Core i7, 4GB RAM, NVIDIA GeForce GT 525M

The first the thing a person should always do when they encounter a problem is restart their computer. No worries, I did that.
I tried converting the file to OGG and WAV to see if it would work better. Apparently Flash Professional handles WAV fine, allowing me to switch between Stream and Event audio sync settings. That's kind of strange, because WAV files are so huge and aren't practical when developing a game or something like that.
Thankfully, I'm just using Flash Professional to export a video, so I don't care about file size, but it's a disturbing bug.
If anyone knows why I was unable to switch to Stream audio sync settings with MP3 files, please speak up.

Loss of audio sync

Similar Messages

Maybe you are looking for