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TOPIC: Audio Out of Sync - Audio plays late

Audio Out of Sync - Audio plays late 3 weeks, 2 days ago #222099

  • AnazelV
  • Pro User
  • OFFLINE
  • Fresh Boarder
  • Posts: 1
  • 3 weeks, 2 days ago
My new Samsung A71 phone has a screen recorder, and I used it to record footage of a game I'm playing.

When I reviewed the recorded video on my phone, it looked normal.
When I reviewed the recorded video through VLC Media Player on my desktop, it looked normal.

However, when I imported the video to Lightworks, the audio was out of sync, playing a few seconds later than the video.

Here's the metadata of my video from MediaInfo:
General
Complete name : D:\Videos\Fire Emblem Heroes - Captures\Samsung Test\SamsungBuiltIn\Screen_Recording_20200717-003749.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42 (isom/mp42)
File size : 370 MiB
Duration : 5 min 19 s
Overall bit rate : 9 705 kb/s
Encoded date : UTC 2020-07-16 16:37:47
Tagged date : UTC 2020-07-16 16:37:47
com.android.version : 10

Video
ID : 2
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L4.2
Format settings : CABAC / 1 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference frames : 1 frame
Format settings, GOP : M=1, N=60
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 5 min 19 s
Bit rate : 9 503 kb/s
Width : 720 pixels
Height : 1 600 pixels
Display aspect ratio : 0.450
Frame rate mode : Variable
Frame rate : 59.176 FPS
Minimum frame rate : 3.556 FPS
Maximum frame rate : 6 428.571 FPS
Standard : NTSC
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.139
Stream size : 362 MiB (98%)
Title : VideoHandle
Language : English
Encoded date : UTC 2020-07-16 16:37:47
Tagged date : UTC 2020-07-16 16:37:47
Color range : Limited
Color primaries : BT.601 PAL
Transfer characteristics : BT.709
transfer_characteristics_Original : BT.601
Matrix coefficients : BT.601
mdhd_Duration : 319725
Codec configuration box : avcC

Audio
ID : 1
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : mp4a-40-2
Duration : 5 min 19 s
Bit rate mode : Constant
Bit rate : 192 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 7.32 MiB (2%)
Title : SoundHandle
Language : English
Encoded date : UTC 2020-07-16 16:37:47
Tagged date : UTC 2020-07-16 16:37:47

Re: Audio Out of Sync - Audio plays late 3 weeks, 2 days ago #222100

  • hugly
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  • Platinum Boarder
  • Posts: 25381
  • 3 weeks, 2 days ago
Hello,

Lightworks does not support non-standard frame rates, which is what the metadata of your video shows:

Frame rate : 59.176 FPS

Converting with Handbrake should fix the issue. Here you'll find suitable settings:

www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=166802&Itemid=81#209009

Please specify explicitly '60' fps as frame rate, do not use 'Same as source'.
It's better to travel well than to arrive...
Last Edit: 3 weeks, 2 days ago by hugly.
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