Audio sync drifting

Log and capture files start out in sync and drift out of sync over the length of the clip. Could dissimilar Sequence, capture and device control presets cause this problem?
Seq Preset is set to DV50 48 Khz which has 16 bit 48 Khz audio
Capture Preset is set to AJA LH 525i29.97 DVCPro 50
Device Preset is set to AJA Kona LH NTSC Sony VTR which has a capture off set of -2 frames and a playback off set of +1 frame.
Audio Playback is set to built in playback with 2 ch of 24 bit 44.1 Khz.
Output to tape is AJA Kona 8 ch 24 bit, 48 Khz.
These dissimilar setting make no sense to me but that is how this system was set before I came into the picture.
Any insight would be greatly appreciated!!!
Thank you in advance for your help!!!
DKG

The editor and switcher/mixer are in different rooms but I could pull the audio into the bay if I have to but I really should be able to do this via SDI embedded.
I suggested this so that we could eliminate the deck and the process of embedding as the culprit. I understand that you don't want this as a permanent solution.
If I capture the same content that drifts from a DVCpro VTR that is fed with the same embedded SDI input everything is groovy.
So, if you record the material to tape and capture everything is good?
K

Similar Messages

Audio sync drift after "live" CD import and convert to 48/16

I shot DV footage on a PD150 cam. The band recorded a CD from sound board to replace the mic audio of the camera. I'm running Final Cut Pro 3, and I have already converted through Quicktime the CD tracks to aiff files running at 48 ( they were 44.1) and 16 bit. The DV cam Orignal audio was also recorded at 48/16. Now when I try to sync the Cd audio (48/16) to the video clips 1: the audio sync drifts off during the song, and though it started right, the whole sync is way off by end. 2: The audio file in the track bar is longer than the video clip in the track bar above. huh? Could it be data rate Audio 187kbps vs. Video 188kbps or should I try and slow/speed up the play rate of either vid or audio. Or is this an impossible meshing of media?
G4 Mac OS X (10.4.8)

As Jim says, it's a function of how this was done. Next time you will know to look for ways to avoid the issue. But all is not lost.
I'll give you the skeleton and you can figure it out.
Find exact sync points near the beginning and end of the "video audio" and the "CD audio". Use drum beats you can be sure are the same. Identify them by ear and then by their waveforms, and put clip (not timeline) markers at those points.
Sync up the ones near the beginning exactly. Now go to the other two, find out how far apart they are, and write it down. How? I haven't got all day.
Calculate the time between the 2 markers in the video clips's audio, and between the markers in the CD audio.
Translate both of those numbers into frames.
Calculate the percentage by which the audio is longer CD audio / video audio = X%.
Go into Soundtrack Pro or audio app of your choice and make a version of the CD audio that is sped up by X%.
Bring that back to FCP and replace the version on the timeline with it.
If the markers didn't survive, find the sync points in the new CD version. Line up at the beginning. If the ones near the end now match, everything is done and you can call me "Helpful" and "Solved". If not you can be angry at me or read it again.
Good luck!

Audio sync drift issues within Premiere Pro CS6, even with 48kHz project & source material?

Evening guys and Merry Christmas to those who follow the tradition. I'm currently doing a few last minute tweaks to a live dance show that I recently shot. The show featured music that was recorded in camera (via additional mic) from the speaker setup within the theatre. This was always intended as a guide track as the original music would then be synced in the edit to give a cleaner sound to the audio during the dance sequences. I have the original CD that the music was played from on the night, however when the files are imported into Premiere Pro (or even Audition), they sync for the first 10 seconds or so and then gradually drift out of sync as the track goes on.
My project is set to 48.000 audio, which was what the original footage was shot at, as well as the audio tracks being imported as 48.000 too. Now on paper there should not be any issues with this sync drift occuring right? I've even tried with 44.100 audio files and naturally they drift out of sync.
At a loss here really as I'm not sure where i'm going wrong. Can anyone shed any light on this situation please?
Thanks!

What are you editing, and does your project match your video?
Read Bill Hunt on a file type as WRAPPER http://forums.adobe.com/thread/440037
What is a CODEC... a Primer http://forums.adobe.com/thread/546811
What CODEC is INSIDE that file? http://forums.adobe.com/thread/440037
Report back with the codec details of your file, use the programs below... a screen shot works well to SHOW people what you are doing
http://forums.adobe.com/thread/592070?tstart=30
For PC http://mediainfo.sourceforge.net/en or http://www.headbands.com/gspot/
For Mac http://mediainspector.massanti.com/
Please NOTE that the PPro CS6 screen may look a bit different (I use CS5)
For CS5 and later, the easy way to insure that your video and your project match
See 2nd post for picture of NEW ITEM process http://forums.adobe.com/thread/872666
-and a FAQ on sequence setting http://forums.adobe.com/message/3804341

Audio sync drift - 44.1 to 48khz

I have an audio track that was accidentally recorded at 44.1khz. I converted the audio to 48khz for import using Quicktime, but the sync drifts noticeably from the video after about 3 minutes. How do I correct this?

Make sure the sequence audio setting is 48K, not 32K.
If the audio was not recorded with video or with a TC based audio recorder, the likelyhood of drifting is quite high.
Options -
• You can cut and shift the audio in segments as the drift becomes noticeable.
• You can use STP to RETIME the segment to something that stays in sync.
I'm sure there are others ...
Good luck.
x

Audio sync drifts w quicktime or mpeg-2 ac3 in quicktime or dvd studio pro

Sorry to post twice but question wasn't asked right so I posted again with the subject correct as I didn't know how to delete other that said audio drifted opening in compressor which isn't the case this is about audio drifting that is perfect in a final cut pro sequence, perfect when I look at a self contained quicktime made, but when I import into dvd studio pro even before making a dvd and just looking at the video and sound in tracks as assets, it's already drifting, and is still the same if I make a dvd:
This is very perplexing.
My audio is spot on for sync in final cut sequences.
When I make a quicktime self contained and open it in final cut it is also perfect.
If I open that same finished self contained file in quicktime or place it in dvdstudio pro, there's what looks like moments the picture is faster than the sound but not always....it is not a lot like maybe 5 frames or so sometimes worse at times...this project is 90 minutes...it occurs in and out throughout not just at the top or the end.
This is the same both for the quicktime self contained with its aiff files and the mpeg with ac3 files the same amount of drift I can see when dropped into dvdstudio pro in the same places it appears...I checked the source audio files and don't see a difference
sound is mostly source 16 bit, there are music parts that were originally 24 but this isn't necessarily where this drift occurs it occurs in places where it's just dialogue.
Compressor version is 3.05 final cut studio 2 with latest updates

I opened two files they do the same things when they go into studio pro
the quicktime file
fps 23.98
rate 24.55 mbits/s
size 720x480
actual the same
playing fps (available while playing)
the mpeg 2:
720x404
fps 23.98
data size 3.85
rate 6191.42kbits/s
this is just the quicktime self contained file as I said if I open it in final cut it's right in sync, in quicktime I see the same drift as when I open this in dvd studio pro the same as with the mpeg 2 file I make in compressor...
the pixel discrepancy for whatever it means this is an anamorphic rendering in the nest just so you're aware
I am in nyc

Audio sync drifting when recording

Hi everyone,
Has anyone experienced something like this?
I'm recording a webcam. A Polycom CX5000. I have it set to record the encoded video and audio with a limit of 30 minutes (creates a new file). While doing the encoding, I get no notification of any dropped frames, yet when I play back the resulting .FLV file, the audio drifts out of sync in the first file after about three minutes. When the recording went over 30 minutes, FMLE started a second file and for some reason, the sync pops back on. Is there a bug in FMLE or some setting I can do to avoid this?   I'm encoding on an i7 PC so I don't think it is a hardware issue. For encoding I was using 15fps, 640x480 and audio at mp3 224.
Thank you,
Mark

Hi,
Thanks for your response.
>1. Does the sync problem aggravates over time or does it remain constant from 3rd min to 30th min?
It aggrevated over time. You can't really notice it until around 3 minutes into the video. I watched it again and it looks like it the sync fluctuates slightly. Goes out of sync, gets back in sync (or nearly) and then goes out again.   Listening on headphones I hear tiny, split second drops outs or glitches (related?).
>2. Did you observe the sync problem in the live stream also?
This time didn't even do a live stream. Had similar issue two weeks ago that was live stream and file save. Assumed the issue was due to network issues.
>3. Can you reduce the file split time to let's say 5 min and reproduce the problem again?
Will be trying this today or tomorrow.
>4. Which audio device are you using? Is the audio and video device coming from the same device?
It is from the same device (I think.) I am remotely troubleshooting for someone so I'm not 100%. It's a Polycom CX5000. The first one we have. We previously had a Microsoft Roundtable which is the same device. The device names come up differently though so that's why I'm not positive. The Video device is currently listed as Integrated Webcam (which must be correct as I'm getting the right picture). The audio though lists "Microphone Array (IDT High Def..." something..    That might be the laptop's built in microphone? If so, that might be the issue.
>5. If you have a different audio-video devices, please try with them and come back with the result.
Will let you know.
I'm hoping it is #4 as that would be an easy fix. I would find it hard to believe Adobe released a product that couldn't keep audio and video in sync, right?
Mark

Audio sync drifting in rendered clips

I'm using Premiere Pro CS5.5 on a PC running Windows 7, 2.80GHz Intel Core i7 CPU, 6GB RAM, 64-bit OS.
I am working on an interview I shot with 2 Canon DSLRs, a 500D and a Rebel T3i, using audio captured with an M-Audio Microtrack II. The audio was edited down in Premiere then rendered out and handed over to a third party to be cleaned up in Pro Tools. The length of the edited interview is just short of 4 minutes.
When I preview in my Premiere timeline the audio is synced but when I render out the clip the audio drifts so that it starts already out of sync by a frame or two and by the end it's clearly off by a lot. I'm not sure how to proceed since the audio looks more or less perfect in my timeline.
I'm really hoping somebody has some suggestions as this project deadline is tomorrow, I'm supposed to be just making minor fixes at this point but suddenly I'm dealing with an issue that has totally broken nearly half my video.
Thanks

I'm definitely working with a mess of a project. Frame rates is actually one of the things I'm looking into and there are a number of discrepencies in settings between, raw footage (30fps from the 500d & 29.9 from the rebel), sequence (29.9fps) and export settings (59.9fps). Unfortunately in the overall project I'm working with video from a number of sources so I'm starting with a number of different frame rates (in other sequences I have captured video game footage that is 60fps too). I'm still going to try and match them up as best I can and hope it helps. I'm just worried that the destination for these rendered clips is a pre-existing After Effects project where all the comps are 59.9fps, if I try to change those and that causes problems I could be looking at a pretty huge set back right before my deadline.
To add a little more detail, the problem seems to be getting progressively worse. In early renders there was no sign of an issue, then yesterday during a review we noticed it was slightly off so I thought i fixed it did a render last night and when I checked it this morning it was as I described in the first post. I have at least 3 or 4 early renders where the problem was either not there or so slight it's hard to notice. The really weird thing I've discovered, if I put the rendered clip back in premiere it syncs up, but if I play it in quicktime or use it in After Effects (the next step in my workflow) it doesn't. Guess that could still have to do with frame rates. We'll see.
Thanks for the tip

IDVD 08 audio/video sync drift toward end of DVD movie - fix/workaround?

Anyone know how I can fix this issue? It's driving me crazy.
I've just spent a few evenings in iMovie 08, editing together the video of my son's birth. All looked & amazingly good in iMovie. The "Large" .m4v file output by iMovie - Shared with the Media Browser - plays perfectly in Quicktime too.
However, after adding that shared movie to iDVD 08, and burning a DVD, I noticed that the audio sync drifts toward the end of the Movie when plated back. At the start of the DVD all seems well, but by the end of the ~1hr 20 minute movie the audio is unbearably out of sync with the video. Completely unwatchable.
After a little Googling I came across some reports that iDVD might not deal well with video that's been recorded with 12-bit audio. I've confirmed that my camcorder is (was!) set to 12-bit rather than 16-bit (the default, I'm sure). So if that's the problem I'm hosed... it's not like I can get a retake on that footage
Is there a reasonable workaround for this issue? I'm obviously unable to re-take the video (or the other 10 hours of DV video tape I've yet to use in an iMovie project). Ideally I'd like Apple to release a patch for this. Shouldn't it be possible for iDVD to account for audio that was originally recorded in 12-bit... even if it's just a checkbox you have to select to tip it off?
Then again, perhaps this is totally unrelated to the 12-bit issue, and this is just a run of the mill bug?
As I said... iMovie generates a MPEG4 video file of the Movie that looks/sounds perfect, so it seems this sync issue's being created somewhere in iDVD as it's rendering the audio/video to burn to the DVD...
Thanks in advance.

I've tried most of the options I can think of, and the audio sync drift issue continues on this ~1hr 12 minute iMovie/iDVD 08 project.
A couple of promising ideas tried used QT Pro, to export the audio track from the iMovie generated MPEG-4 file - as a WAV file, resampling to 48kHz and 16-bit... then Adding this back to the video track in the MPEG-4 file (having deleted the original audio track). In another test I also tried the Add to Selection and Scale option. Oddly enough I think the Add to Selection and Scale attempt generated more sync issues than before in the final DVD movie... so I stuck with the MPEG-4 file containing the video track and the added, resampled at 48kHz & 16 bit, WAV audio track.
This was saved as a self contained Movie file, producing a QT .mov file. I moved this .mov file into the iDVD projects directory structure so that it was avalable in iDVD's Media Browser. I then reworked the iDVD project to use this QT large.mov file, instead of the original iMovie large.m4v file.
As a reminder... the original large.m4v file has the following properties:
29.97 FPS H.264 Decoder, 960 x 540, Millions
AAC, Stereo (L R), 44.100 kHz
0:01:12:07.16 duration
The resampled and saved QT MOV file has the following properties:
29.97 FPS H.264 Decoder, 960 x 540, Millions
16-bit Integer (Little Endian), Stereo, 48.000 kHz
0:01:12:07.16 duration
BOTH versions of this Movie file play flawlessly within QT Pro... there's no audio sync drift evident toward the end of the movie unless I use iDVD 08 to burn either movie file to a Physical DVD (or DVD Disk Image). In both cases the resultant DVD Movie exhibits significant audio sync drift as the ~1hr 12 minute movie progresses. The sync goes out by ~ <= 1 second based on a rough visual assessment.
I've not yet tried to burn either the original iMovie produced MPEG-4 video file or my QT Pro tweaked audio track .MOV file version to a DVD on my PC...
... But I have used an application called Burn (referenced in this earlier/archived iDVD sync drift forum post: http://discussions.apple.com/thread.jspa?threadID=1332100 by user F Shippey - http://burn-osx.sourceforge.net/) to take the QT Pro tweaked .mov file version of the original MPEG-4 file and burn it to a DVD...
Results:
The Burn app burnt DVD plays with NO audio sync issues!... Even though it was generated from the same audio tweaked (48kHz/16-bit resampled) QT Pro .mov file.
However, whenever I burn a DVD using iDVD 08 the audio sync gradually drifts. It matters not whether I use the original iMovie 08 generated MPEG-4 movie file, or the QT Pro version of that file with the resampled audio track (the same one that works fine with Burn).
It sure looks to me like iDVD has a problem... Again, refer to http://discussions.apple.com/thread.jspa?threadID=1332100 for someone else who seems to have run into similar challenges.
Am I overlooking something?
Thanks in advance.

Sync Drift on audio

I'm sure this issue has been addressed a million ways on here, but I couldn't find the right hit on a search. I'm posting this for a friend so at some point he may jump in with clarification. I have no doubt that anyone who's interested in helping will have some spec questions, but I'll start with the issue and what I know and then we'll try to fill in the gaps based on your questions.
My friend is cutting a piece that was shot on 35mm 24fps and transferred to DVCam at 29.97 with a 3:2 pulldown. Audio was recorded to DVD RAM discs at 48 KHz and brought into FCP at 48 as well. The footage was not synced during telecine. There is matching TC though.
My friend is syncing using slates and is finding that on long takes it is evident there is sync drift. I had him do a quick test of first slowing down the audio to 80% (24/30=80) and syncing that and then speeding it up to 125% (30/24=125). Neither of those fixed the issue.
I cannot confirm that everything was shot, recorded and telecined properly, but this was a very professional operation so I'd like to start with that assumption. What might be going on here?
I have no doubt I will need to provide more info, but I'm not sure what that would be. Please, help me help you help me help my friend.
Thanks,
Martin

ssake wrote:
I don't know if this will help under these circumstances, but I have found that the audio sync drift problem is solved by making the capture settings correspond to the audio specs in the source. I ran across this problem when importing analog video, which is when most people report it.
That makes no sense. Capturing analog, which is what I did, is a process which converts the analog signal to digital. Digital settings for audio have no real analog equivalent. Video does in terms of aspect ratio, etc.
In my case the captured mov is fine. I have issues when I export and import from the FCP timeline.
Thanks,
Robert A. Ober

FINAL CUT PRO 5.1.4 Sync (Drifting) Issues shot with Canon XL2

So basically I am still having trouble with audio sync drifting and I captured the footage correctly using the 2:3:3:2 pull down 24p and 48khz. Any suggestions anyone else can give me? The last fella suggested that I should CHANGE the speed of the audio track to match up with the video track but I don't want a percentage of change in the way the audio sounds like even though it is very SMALL. Any suggestions I would very much appreciate. Thanks.

Butting in where might not be helpful…
The Canon DV and FW protocols are weird.
Here's what a buddy of mine has been doing for many years:
a. Place the long clip in the timeline.
b. Unlink the audio and video tracks in the timeline.
c. Select the audio clip and scrub till the end of the sound is reached. Hopefully this is eaisly matched to the video clip. Trim to that point.
d. Select the video clip and match the outpoint to the same frame of action (helps if there's a specific sound like a clap or a notebook being closed or someone's voice). Now choose Speed and wirte down the exact length of the clip.
e. Select the audio clip and choose Speed and enter the exact time of the video clip. Render.
f. Relink the two tracks which are now exactly the same length.
bogiesan

How do you fix the audio from drifting sync on DV footage?

I know there has been some discussion about this, but the solution doesn't really make sense. Basically, I am having a huge problem with audio sync on anything shot on MiniDV. Sometimes the footage will pop at the beginning and the footage will immediately be off sync --- sometimes it takes halfway through the tape to start drifting. We work with pro-level camcorders and recording decks, and basically the only solution I can find it use legacy FCP or iMovie to capture the footage. Which is not a solution. I've also tried the re-time fix, which *sometimes* works ------ but only sometimes. Is this being addressed in any way?

Did you load the Presenter presentation in a Share pod or are you using screen sharing?

Audio slowly drifts out of sync with video

I have a long continuous video clip (.MP4) that has an audio sample rate of 48 kHz. Separately, I have an audio clip (.mp3) for that take that was recorded at 44.1 kHz.
I created a sequence in Premiere with the .MP4 making sure the sequence's audio sample rate was set to 48. I brought the .mp3 into Audition where I used Edit > Convert Sample Type to change it to 48 kHz.
Back in Premiere, I dragged the converted .mp3 into the sequence and the audio still drifted out of sync toward the end of the clip.
Am I missing a step? How can I make sure the audio and video are in sync throughout rather than just in the beginning?

Two independent record devices will not stay perfectly synchronous over a long period of time unless locked via timecode or a sync cable.
A solution is to scroll to the end of the clips and adjust the speed of the mp3 file (making it run slightly faster or slower) until the end of the camera audio and mp3 audio coincide.
MtD

Supplemental digital audio recorder drifts out of sync

Dear All,
I have just purchased a Sony ICD-UX70/UX80 digital audio recorder to use as a back-up emergency audio source and it works very well in capturing stereo digital audio. However, when trying to edit this audio source into my video, the audio keeps "drifting," I assume because of the difference in the frames per second between video and audio. Is there any "quick fix" to keep both audio sources in sync...a "make fit" that will adjust the audio to the space allotted to the video? Any suggestions?
Thanks
Barb

Video runs at 48khz. The unit may record at 44.1khz. If that's the case, you need to resample the audio to match the sequence settings.
Resampling can be done in QT Pro, iTunes, Soundtrack Pro, Peak or any number of audio editing programs.
Good luck,
x

The whole audio sync/weird sample rate/drift issue (FCP6)

I can tell this question is doomed to fail on account of viewing the other unanswered questions on the subject in the forums, but I'll try nonetheless!
So yeah, importing longer DV clips....audio rate winds up being 'weird' (as in 48003.9kHz instead of 48). Any way of straightening that out that doesn't require a buncha hoops? I've already tried re-exporting it from QT at 48kHz and a few other things. Do I just have to capture in separate chunks instead of one big go?
I found a doc that says, "In previous versions of Final Cut Pro, the "Sync Adjust Movies Over [n] Minutes" option could be enabled in the preferences, triggering an adjustment in the audio sample rate based on the amount of audio recorded to disk during capture. In Final Cut Pro 4 [and up, I'm guessing] this preference has been replaced by automatic audio rate analysis, specific to DV media..."
Apparently this rate analysis ain't working as well as it should...or something...
Anyone?
Thanks,
E

If your footage was shot with the Panasonic dvx100 camera, there is a known audio sync issue. You can install a patch from disc 1 of the FCP install discs inside of the "extras" folder. I've had this problem from time to time and I capture DVCPRO 50, so it's not just a mini DV issue. I usually get an audio rate slightly below 48, like 47.89999 or so. Are you using capture now? I used to get this problem a lot more when using capture now as opposed to log and capture. My solution has always been to always use log and capture and keep clips 15 minutes or shorter. I've tried trashing prefs and all that jazz, swapping out hard drives, but log and capture and shorter clip lengths always seem to clear it up.

Exported .mp4 and FlipFactory audio sync problems

I work for a television station, and we use FlipFactory to convert everything before going to our playout server.
When using the H.264 preset in CS5.5, everything works fine.
When using the same preset in CS6, after going through FlipFactory, the audio sync starts to drift. By the end of a 30 minute program, the audio is way out of sync. If I play the file (after CS6 export, before FlipFactory) in WMP, VLC, MPC, the audio stays in sync.
Using the H.264 BluRay preset, everything is fine (in both CS5.5 and CS6), but obviously, the file size is larger due to the container.
I understand that most will say this is a FlipFactory issue since the file plays back fine before FF does it's thing, but something must have changed from CS5.5 to CS6 regarding the H.264 encoder, as CS5.5's files go through FF just fine.
Any help would be appreciated.

Did somewhat of what you asked. I exported the same show in CS6, one using the H.264 preset, one using the H.264 BluRay preset. The H.264 preset one drifts out of sync after FlipFactory, the other stays in sync.
Here are the media info specs for each file (I did use different bitrates on the two, but that shouldn't cause an issue):
H.264:
General
Complete name                            : D:\Commercials\TORICHMOND\PH6522.mp4
Format                                   : MPEG-4
Format profile                           : Base Media / Version 2
Codec ID                                 : mp42
File size                                : 3.61 GiB
Duration                                 : 28mn 30s
Overall bit rate mode                    : Variable
Overall bit rate                         : 18.1 Mbps
Encoded date                             : UTC 2012-11-05 19:56:39
Tagged date                              : UTC 2012-11-05 19:58:35
©TIM                                     : 00:00:00:00
©TSC                                     : 30000
©TSZ                                     : 1001
Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : [email protected]
Format settings, CABAC                   : Yes
Format settings, ReFrames                : 3 frames
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 28mn 30s
Source duration                          : 28mn 30s
Bit rate mode                            : Constant
Bit rate                                 : 18.0 Mbps
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Variable
Frame rate                               : 29.970 fps
Minimum frame rate                       : 29.970 fps
Maximum frame rate                       : 30.000 fps
Standard                                 : NTSC
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Interlaced
Scan order                               : Top Field First
Bits/(Pixel*Frame)                       : 0.290
Stream size                              : 3.57 GiB (99%)
Source stream size                       : 3.57 GiB (99%)
Language                                 : English
Encoded date                             : UTC 2012-11-05 19:56:39
Tagged date                              : UTC 2012-11-05 19:56:39
mdhd_Duration                            : 1710709
Audio
ID                                       : 2
Format                                   : AAC
Format/Info                              : Advanced Audio Codec
Format profile                           : LC
Codec ID                                 : 40
Duration                                 : 28mn 30s
Source duration                          : 28mn 30s
Bit rate mode                            : Variable
Bit rate                                 : 192 Kbps
Maximum bit rate                         : 295 Kbps
Channel(s)                               : 2 channels
Channel positions                        : Front: L R
Sampling rate                            : 48.0 KHz
Compression mode                         : Lossy
Stream size                              : 38.6 MiB (1%)
Source stream size                       : 38.6 MiB (1%)
Language                                 : English
Encoded date                             : UTC 2012-11-05 19:56:39
Tagged date                              : UTC 2012-11-05 19:56:39
mdhd_Duration                            : 1710763
H.264 BluRay:
General
ID                                       : 0 (0x0)
Complete name                            : D:\Commercials\TORICHMOND\PH6522A.m2t
Format                                   : MPEG-TS
File size                                : 4.93 GiB
Duration                                 : 28mn 31s
Overall bit rate mode                    : Variable
Overall bit rate                         : 24.7 Mbps
Video
ID                                       : 1001 (0x3E9)
Menu ID                                  : 1 (0x1)
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : [email protected]
Format settings, CABAC                   : Yes
Format settings, ReFrames                : 4 frames
Codec ID                                 : 27
Duration                                 : 28mn 30s
Bit rate mode                            : Variable
Bit rate                                 : 23.4 Mbps
Maximum bit rate                         : 24.0 Mbps
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate                               : 29.970 fps
Standard                                 : NTSC
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Interlaced
Scan order                               : Top Field First
Bits/(Pixel*Frame)                       : 0.376
Stream size                              : 4.66 GiB (95%)
Color primaries                          : BT.709-5, BT.1361, IEC 61966-2-4, SMPTE RP177
Transfer characteristics                 : BT.709-5, BT.1361
Matrix coefficients                      : BT.709-5, BT.1361, IEC 61966-2-4 709, SMPTE RP177
Audio
ID                                       : 1002 (0x3EA)
Menu ID                                  : 1 (0x1)
Format                                   : AC-3
Format/Info                              : Audio Coding 3
Mode extension                           : CM (complete main)
Codec ID                                 : 129
Duration                                 : 28mn 30s
Bit rate mode                            : Constant
Bit rate                                 : 128 Kbps
Channel(s)                               : 2 channels
Channel positions                        : Front: L R
Sampling rate                            : 48.0 KHz
Bit depth                                : 16 bits
Compression mode                         : Lossy
Stream size                              : 26.1 MiB (1%)

Audio sync drifting

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