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Audio drifts out of sync over time
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I’m also having this issue with audio not syncing correctly. I’ve read through this thread and watched many YouTube tutorials which claim to solve the issue — to no avail.
- I’ve used Handbrake to force the video into a constant frame rate (29.97 fps; MP4), but that doesn’t seem to solve the issue.
I’ve tried speeding up the video to match the length of the audio track, but that doesn’t help much at all.
I’ve tried copying the MTS file and changing the file extension (container) to .MOV. (Some people claim this works.) Doesn’t work.
I’ve tried creating a Premiere Sequence based on MTS settings, Handbrake MP4 settings, and the WAV audio’s settings. Nothing seems to work.Here are my basic settings (detailed metadata further below):
VIDEO – AVCHD (MTS) 29.97 fps; AC-3 Big, 48kHz
AUDIO – WAV (PCM, Little), 48kHz
Any thoughts? Am I missing something?
Full metadata for video:
Format : BDAV
Format/Info : Blu-ray Video
File size : 3.99 GiB
Duration : 27mn 27s
Overall bit rate mode : Variable
Overall bit rate : 20.8 Mbps
Maximum Overall bit rate : 24.0 MbpsVideo
ID : 4113 (0x1011)
Menu ID : 1 (0x1)
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Format settings, GOP : M=3, N=15
Format settings, picture structure : Frame
Codec ID : 27
Duration : 27mn 27s
Bit rate mode : Variable
Bit rate : 19.6 Mbps
Maximum bit rate : 20.9 Mbps
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 : Interleaved fields
Scan order : Top Field First
Bits/(Pixel*Frame) : 0.316
Stream size : 3.76 GiB (94%)Audio
ID : 4352 (0x1100)
Menu ID : 1 (0x1)
Format : AC-3
Format/Info : Audio Coding 3
Format settings, Endianness : Big
Codec ID : 129
Duration : 27mn 26s
Bit rate mode : Constant
Bit rate : 384 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Frame rate : 31.250 fps (1536 spf)
Bit depth : 16 bits
Compression mode : Lossy
Delay relative to video : -67ms
Stream size : 75.4 MiB (2%)
Service kind : Complete MainFull metadata for audio:
Format : Wave
File size : 220 MiB
Duration : 26mn 32s
Overall bit rate mode : Constant
Overall bit rate : 1 158 Kbps
Producer : Pro Tools
Encoded date : 2017-04-17 12:34:29
Producer_Reference : J7I3HwTgFwbaaaGkAudio
Format : PCM
Format settings, Endianness : Little
Format settings, Sign : Signed
Codec ID : 1
Duration : 26mn 32s
Bit rate mode : Constant
Bit rate : 1 152 Kbps
Channel(s) : 1 channel
Sampling rate : 48.0 KHz
Bit depth : 24 bits
Stream size : 219 MiB (99%) - I’ve used Handbrake to force the video into a constant frame rate (29.97 fps; MP4), but that doesn’t seem to solve the issue.
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I had the same problem with a lot of different clips with different fps that lead to audio sync problems. I used a program called iSkysoft Video Converter to change the fps of the clips and replaced them. Worked very smooth. The program isn’t too expensive either. Its really worth it. Saves you a lot of time!
Best regards, Jens
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Have any of you contacted Adobe about the sync issues? I would like to think a fix could be part of a new update.
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