Audio lane behind video after export

christopher-l wrote on 4/7/2022, 9:17 AM

Hi there, we are facing the following problem: When exporting the video the audio lane lags about 6 seconds behind the video file and cuts off at the end, at the same point where the video ends. That means we are getting a video file with misplaced audio and an ending that cuts off the sound abruptly. The misplaced audio starts not from beginning but only from a certain point a few minutes into it. However, playing the video inside Magix Movie Studio we are not having this problem. We tried exporting via different formats and settings with no success. The video is about 10 minutes long. I'd appreciate input on this issue.

Comments

me_again wrote on 4/7/2022, 11:24 AM

Greetings @christopher-l and welcome to the forum.

To answer your question I (or anyone else here) need to ask a lot of questions to which you will need to give a lot of answers. All this can take days.

Can I ask that you do as asked in this post at the top of the forum https://www.magix.info/us/forum/please-do-the-following-before-posting-your-question--621831/ then you will more than likely get an answer very quickly.

Sorry I can't be more help at the moment.

AndyW

 

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johnebaker wrote on 4/7/2022, 12:03 PM

@christopher-l

Hi

In addition to Andy's (@me_again) comment:

Download and install MediaInfo and analyse the video clip that is causing an issue, and post the results in your reply. See this tutorial on how to setup MediaInfo and analyse a video clip for all the data required.  

John EB
Forum Moderator

VPX 16, Movie Studio 2025, and earlier versions 2015 and 2016, Music Maker Premium 2024.

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christopher-l wrote on 4/7/2022, 12:24 PM

Thanks for the tip. This is the screenshot above.

Former user wrote on 4/7/2022, 12:27 PM

@christopher-l Hi, select Text from the View option of that pic, select all, copy & paste in a comment 👍

Like this,

christopher-l wrote on 4/7/2022, 1:40 PM

Okay, I think I got it:

 

General

Count :331

Count of stream of this kind :1

Kind of stream :General

Kind of stream :General

Stream identifier :0

Inform :MPEG-4 (Base Media): 285 MiB, 10 min 59 s

Count of video streams :1

Count of audio streams :1

Video_Format_List :AVC

Video_Format_WithHint_List :AVC

Codecs Video :AVC

Video_Language_List :English

Audio_Format_List :AAC LC

Audio_Format_WithHint_List :AAC LC

Audio codecs :AAC LC

Audio_Language_List :English

Complete name :G:\My Drive\Marketing\YouTube\Question types\Question types.mp4

Folder name :G:\My Drive\Marketing\YouTube\Question types

File name extension :Question types.mp4

File name :Question types

File extension :mp4

Format :MPEG-4

Format :MPEG-4

Format/Extensions usually used :braw mov mp4 m4v m4a m4b m4p m4r 3ga 3gpa 3gpp 3gp 3gpp2 3g2 k3g jpm jpx mqv ismv isma ismt f4a f4b f4v

Commercial name :MPEG-4

Format profile :Base Media

Internet media type :video/mp4

Codec ID :isom

Codec ID :isom (isom/avc1)

Codec ID/Url :http://www.apple.com/quicktime/download/standalone.html

CodecID_Compatible :isom/avc1

File size :298700430

File size :285 MiB

File size :285 MiB

File size :285 MiB

File size :285 MiB

File size :284.9 MiB

Duration :659225

Duration :10 min 59 s

Duration :10 min 59 s 225 ms

Duration :10 min 59 s

Duration :00:10:59.225

Duration :00:10:59;05

Duration :00:10:59.225 (00:10:59;05)

Overall bit rate mode :VBR

Overall bit rate mode :Variable

Overall bit rate :3624868

Overall bit rate :3 625 kb/s

Frame rate :29.970

Frame rate :29.970 FPS

Frame count :19757

Stream size :347207

Stream size :339 KiB (0%)

Stream size :339 KiB

Stream size :339 KiB

Stream size :339 KiB

Stream size :339.1 KiB

Stream size :339 KiB (0%)

Proportion of this stream :0.00116

HeaderSize :347243

DataSize :298353187

FooterSize :0

IsStreamable :Yes

Encoded date :UTC 2022-04-07 11:39:51

Tagged date :UTC 2022-04-07 11:39:51

File creation date :UTC 2022-04-07 09:48:28.000

File creation date (local) :2022-04-07 10:48:28.000

File last modification date :UTC 2022-04-07 11:56:57.518

File last modification date (local) :2022-04-07 12:56:57.518

 

Video

Count :382

Count of stream of this kind :1

Kind of stream :Video

Kind of stream :Video

Stream identifier :0

StreamOrder :0

Inform :English, 3 424 kb/s, 1920*1080 (16:9), at 29.970 (30000/1001) FPS, AVC (Main@L4) (CABAC / 2 Ref Frames)

ID :1

ID :1

Format :AVC

Format :AVC

Format/Info :Advanced Video Codec

Format/Url :http://developers.videolan.org/x264.html

Commercial name :AVC

Format profile :Main@L4

Format settings :CABAC / 2 Ref Frames

Format settings, CABAC :Yes

Format settings, CABAC :Yes

Format settings, Reference frames :2

Format settings, Reference frames :2 frames

Format settings, GOP :M=3, N=25

Internet media type :video/H264

Codec ID :avc1

Codec ID/Info :Advanced Video Coding

Duration :659225

Duration :10 min 59 s

Duration :10 min 59 s 225 ms

Duration :10 min 59 s

Duration :00:10:59.225

Duration :00:10:59;05

Duration :00:10:59.225 (00:10:59;05)

Bit rate mode :VBR

Bit rate mode :Variable

Bit rate :3424426

Bit rate :3 424 kb/s

Maximum bit rate :23999488

Maximum bit rate :24.0 Mb/s

Width :1920

Width :1 920 pixels

Height :1080

Height :1 080 pixels

Stored_Height :1088

Sampled_Width :1920

Sampled_Height :1080

Pixel aspect ratio :1.000

Display aspect ratio :1.778

Display aspect ratio :16:9

Rotation :0.000

Frame rate mode :CFR

Frame rate mode :Constant

Frame rate :29.970

Frame rate :29.970 (30000/1001) FPS

FrameRate_Num :30000

FrameRate_Den :1001

Frame count :19757

Color space :YUV

Chroma subsampling :4:2:0

Chroma subsampling :4:2:0

Bit depth :8

Bit depth :8 bits

Scan type :Progressive

Scan type :Progressive

Bits/(Pixel*Frame) :0.055

Stream size :282183776

Stream size :269 MiB (94%)

Stream size :269 MiB

Stream size :269 MiB

Stream size :269 MiB

Stream size :269.1 MiB

Stream size :269 MiB (94%)

Proportion of this stream :0.94470

Language :en

Language :English

Language :English

Language :en

Language :eng

Language :en

Encoded date :UTC 2022-04-07 11:39:51

Tagged date :UTC 2022-04-07 11:39:51

Buffer size :6400000

Codec configuration box :avcC

 

Audio

Count :285

Count of stream of this kind :1

Kind of stream :Audio

Kind of stream :Audio

Stream identifier :0

StreamOrder :1

Inform :English, 196 kb/s, 48.0 kHz, 2 channels, AAC LC

ID :2

ID :2

Format :AAC

Format :AAC LC

Format/Info :Advanced Audio Codec Low Complexity

Commercial name :AAC

Format_AdditionalFeatures :LC

Codec ID :mp4a-40-2

Duration :659157

Duration :10 min 59 s

Duration :10 min 59 s 157 ms

Duration :10 min 59 s

Duration :00:10:59.157

Duration :00:10:59.157

Bit rate mode :VBR

Bit rate mode :Variable

Bit rate :196244

Bit rate :196 kb/s

Channel(s) :2

Channel(s) :2 channels

Channel positions :Front: L R

Channel positions :2/0/0

Channel layout :L R

Samples per frame :1024

Sampling rate :48000

Sampling rate :48.0 kHz

Samples count :31639536

Frame rate :46.875

Frame rate :46.875 FPS (1024 SPF)

Frame count :129

Compression mode :Lossy

Compression mode :Lossy

Stream size :16169447

Stream size :15.4 MiB (5%)

Stream size :15 MiB

Stream size :15 MiB

Stream size :15.4 MiB

Stream size :15.42 MiB

Stream size :15.4 MiB (5%)

Proportion of this stream :0.05413

Language :en

Language :English

Language :English

Language :en

Language :eng

Language :en

Encoded date :UTC 2022-04-07 11:39:51

Tagged date :UTC 2022-04-07 11:39:51

 

johnebaker wrote on 4/7/2022, 5:16 PM

@christopher-l

Hi

This would appear to be a standard h.264/AVC video with AAC audio which should have no issues with audio sync.

Has the video been converted or captured by VLC and was the original a vp-9 encoded video?

The MediaInfo analysis is odd in that it has a lot of duplicate data in it, this is what a standard AVC/AAC encoded file should look like:

General
Complete name                            : W:\Videos\Blender\Exports\A380 landing prep.mp4
Format                                   : MPEG-4
Format profile                           : Base Media
Codec ID                                 : isom (isom/avc1)
File size                                : 42.9 MiB
Duration                                 : 28 s 920 ms
Overall bit rate mode                    : Variable
Overall bit rate                         : 12.4 Mb/s
Encoded date                             : UTC 2020-11-18 21:30:14
Tagged date                              : UTC 2020-11-18 21:30:14

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L4.1
Format settings                          : CABAC / 2 Ref Frames
Format settings, CABAC                   : Yes
Format settings, Reference frames        : 2 frames
Format settings, GOP                     : M=3, N=25
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 28 s 920 ms
Bit rate mode                            : Variable
Bit rate                                 : 12.3 Mb/s
Maximum bit rate                         : 28.0 Mb/s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 25.000 FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.238
Stream size                              : 42.5 MiB (99%)
Language                                 : English
Encoded date                             : UTC 2020-11-18 21:30:14
Tagged date                              : UTC 2020-11-18 21:30:14
Color range                              : Limited
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709
Codec configuration box                  : avcC

Audio
ID                                       : 2
Format                                   : AAC LC
Format/Info                              : Advanced Audio Codec Low Complexity
Codec ID                                 : mp4a-40-2
Duration                                 : 28 s 864 ms
Bit rate mode                            : Variable
Bit rate                                 : 96.0 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                              : 345 KiB (1%)
Language                                 : English
Encoded date                             : UTC 2020-11-18 21:30:14
Tagged date                              : UTC 2020-11-18 21:30:14

 

John EB

VPX 16, Movie Studio 2025, and earlier versions 2015 and 2016, Music Maker Premium 2024.

PC - running Windows 11 23H2 Professional on Intel i7-8700K 3.2 GHz, 16GB RAM, RTX 2060 6GB 192-bit GDDR6, 1 x 1Tb Sabrent NVME SSD (OS and programs), 2 x 4TB (Data) internal HDD + 1TB internal SSD (Work disc), + 6 ext backup HDDs.

Laptop - Lenovo Legion 5i Phantom - running Windows 11 24H2 on Intel Core i7-10750H, 16GB DDR4-SDRAM, 512GB SSD, 43.9 cm screen Full HD 1920 x 1080, Intel UHD 630 iGPU and NVIDIA GeForce RTX 2060 (6GB GDDR6)

Sony FDR-AX53e Video camera, DJI Osmo Action 3 and Sony HDR-AS30V Sports cams.

christopher-l wrote on 4/8/2022, 5:26 AM

Thanks for the help. I have now used the exported video with its 1 video and 1 audio lane and created a new video based on them. I noticed the audio lane kept always getting more and more behind and I have cut it at various places to match them both again. This new exported file works fine, so I can work with that.