Participating Frequently

Question

Video out of sync with audio

Forum|Forum|6 years ago
December 17, 2019
5 replies
3127 views

I'm editing mp4 files from a video camera. I've been using Elements 2018 for a year with no problem when suddenly, after I clip a section out, the audio no longer matches the video. I bought 2020 and the same thing happens. I tried running it through Handbrake and I get a stop and start look for the video although the audio sounds fine.

This topic has been closed for replies.

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Barry Tevis

Participant

try recording in 30FPS as you already downloaded Handbrake. but if you're someone who does not like to download anything try recording in 30FPS

J

jamiea84563210Author

Participating Frequently

I am still having this problem. I thought a new SD card would fix it but it didn't. When I play the raw footage on my laptop it looks fine. When I import it into Premiere the audio and video go out of sync. This only happens with clips longer than 10 minutes. I've tried reboooting, a newer version of Premiere, and Handbrake. Nothing works. Is there a setting in the program I could change? Could my camera be at fault?

M

martak31890441

Participant

I am having the same issues. I have upgraded Premiere Elements from 2018 to 2020 with no improvement. The problem is most evident when I am editing video/audio from iPhones and iPads. It also seems that syncing problems are actually introduced while editing the video, and the MP4 output is actually worse than the original video. How can I fix this?

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Bill Sprague

Community Expert

"I did a test with the new SD card and there were no sync problems. "

Are you keeping the source files on the SD card? It may be that you need to copy the source files to your computer's faster drives before you begin a project. My understanding is that the "normal" workflow for any video editing is to use Organizer, Lightroom, Finder (on a Mac) or Explorer (on Windows) to put clips in an organized file structure on the computer before editing starts. SD cards and card readers are too slow.

J

jamiea84563210Author

Participating Frequently

Source files are transferred to my computer before I edit.

Mohammad Tahseen

Adobe Employee

I want to understand the issue here. Is it that when you are importing a file from the specified camera and adding that to timeline, audio and video get out of sync, or is it that you have created a project of certain settings and you performed certain operations such as trimming, rearranging and deleting a clip from timeline and audio/video got out of sync. If it is the former then would it be possible for you to share a sample file(problematic) from the camera with us and we will investigate the issue using that file. If the issue is later arising from certain editing operation then we would need to understand the project settings and type of operations you are performing.

Also, you are saying you are editing mp4 files and you have shared mediainfo of MTS file. Are both these files from the same camera.

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jamiea84563210Author

Participating Frequently

It's when I import a file from my video camera and try to play it in Elements. It's out of sync before I do any editing.

Yes, both files are from the same camera. It's an MTS file before I edit it and MP4 after it's edited.

I can't post a clip without putting it on YouTube. I don't want my channel subscribers to see it. Is there another way to upload video here?

S

Steve Grisetti

Legend

You don't say where your video is coming from, but it most likely uses a codec or frame rate not supported by version 2018. Open one of your video clips in the free download MediaInfo. In MediaInfo, set View to Text and then copy the report it generates and paste it to this forum. Once we see the specs of your video, we'll better be able to help you.

J

jamiea84563210Author

Participating Frequently

Thanks, Steve. Here's what I got:

General
ID : 0 (0x0)
Complete name : C:\Users\Jamie\Videos\00027.MTS
Format : BDAV
Format/Info : Blu-ray Video
File size : 1.59 GiB
Duration : 13 min 53 s
Overall bit rate mode : Variable
Overall bit rate : 16.4 Mb/s
Maximum Overall bit rate : 18.0 Mb/s
Recorded date : 2019-12-10 09:35:39-05:00
Writing application : Sony HDR-CX405

Video
ID : 4113 (0x1011)
Menu ID : 1 (0x1)
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4
Format settings : CABAC / 2 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference frames : 2 frames
Format settings, GOP : M=2, N=15
Codec ID : 27
Duration : 13 min 52 s
Bit rate mode : Variable
Bit rate : 15.5 Mb/s
Maximum bit rate : 16.0 Mb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 29.970 (30000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Interlaced
Scan type, store method : Separated fields
Scan order : Top Field First
Bits/(Pixel*Frame) : 0.250
Stream size : 1.50 GiB (94%)
IrisFNumber : 2.000000

Audio
ID : 4352 (0x1100)
Menu ID : 1 (0x1)
Format : AC-3
Format/Info : Audio Coding 3
Commercial name : Dolby Digital
Codec ID : 129
Duration : 13 min 53 s
Bit rate mode : Constant
Bit rate : 256 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Compression mode : Lossy
Delay relative to video : -604 ms
Stream size : 25.4 MiB (2%)
Service kind : Complete Main

Text
ID : 4608 (0x1200)
Menu ID : 1 (0x1)
Format : PGS
Codec ID : 144
Duration : 13 min 52 s
Delay relative to video : -67 ms

S

Steve Grisetti

Legend

I don't see anything in the specs that would indicate a problem. You should have no problems editing this video in Premiere Elements.

Could it be that your computer is just having trouble keeping up with high-res video? Try outputting an MP4 from your project and see if it plays out of sync.

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