Uploading to Youtube causes audio to play in the wrong order

[Ifcpeo]

Hello, I'm trying to figure out what the issue is. My videos play fine on my computer in different players but when uploading to youtube everything gets switched around.

I have three files that I have merged using mp4box (intro, vid, outro). The video plays in the correct order but the audio does not. The audio goes middle, last, and then nothing. The first audio file does not play at all.

Any help would be appreciated. Thx.

[Ifcpeo]

Hmmm, well in windows media player it's fine but in flv player there's some strangeness going on.

[Cornucopia]

A quick guess would lead one to question your merging methods. Are you merging dissimilar formats, perhaps?

What's the DMTR (Detailed MediaInfo Text Readout) on this file?

Scott

[Ifcpeo]

Formats are all the same for all:
track ID 1 - Audio (SR 44100 - 2 channels)
track ID 2 - Video (size 864 x 480)

And correction I'm using mp4box not ffmpeg. I tested everything in free video joiner and everything played fine. But I have 100 vids to merge and the free video joiner just does one at a time.

[El Heggunte]

Formats are all the same for all:
track ID 1 - Audio (SR 44100 - 2 channels)
track ID 2 - Video (size 864 x 480)

That info is not sufficient.

[Ifcpeo]

I believe this is what you need.

General
Complete name : C:\Users\Michelle\Documents\Finale\Finale\MEA Music Catalogue\00000 - MEA Music Cataloue - MAIN\videos\YOUTUBE MAKER - MERGED\Done\Original Sheet Music - Beginner Piano - Penguin Tango.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 12.5 MiB
Duration : 1mn 15s
Overall bit rate mode : Variable
Overall bit rate : 1 394 Kbps
Encoded date : UTC 2014-05-21 16:08:45
Tagged date : UTC 2014-05-21 16:08:45

Video
ID : 2
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Baseline@L3.1
Format settings, CABAC : No
Format settings, ReFrames : 1 frame
Format settings, GOP : M=1, N=3
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 1mn 15s
Bit rate : 1 249 Kbps
Maximum bit rate : 4 948 Kbps
Width : 864 pixels
Height : 480 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 30.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.100
Stream size : 11.2 MiB (90%)
Language : English
Encoded date : UTC 2014-05-19 06:17:08
Tagged date : UTC 2014-05-21 16:08:48

Audio
ID : 1
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : Main
Codec ID : 40
Duration : 48s 63ms
Source duration : 1mn 15s
Bit rate mode : Variable
Bit rate : 144 Kbps
Maximum bit rate : 189 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 817 KiB (6%)
Source stream size : 1.28 MiB (10%)
Language : English
Encoded date : UTC 2014-05-21 16:08:45
Tagged date : UTC 2014-05-21 16:08:48

[Ifcpeo]

And here's an example of the files before merging. I batch created them so they're all pretty much the same, just different file names and pics. All my video files have the same problem:

General
Complete name : C:\Users\Michelle\Documents\Finale\Finale\MEA Music Catalogue\00000 - MEA Music Cataloue - MAIN\videos\YOUTUBE MAKER - MERGED\media file\Movie01-Intro.mp4
Format : MPEG-4
Codec ID : M4V
File size : 5.50 MiB
Duration : 27s 539ms
Overall bit rate : 1 675 Kbps
Encoded date : UTC 2014-05-19 05:24:10
Tagged date : UTC 2014-05-19 05:24:10

Video
ID : 2
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Baseline@L3.1
Format settings, CABAC : No
Format settings, ReFrames : 1 frame
Format settings, GOP : M=1, N=3
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 27s 500ms
Source duration : 27s 500ms
Bit rate : 1 533 Kbps
Width : 864 pixels
Height : 480 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 30.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.123
Stream size : 5.02 MiB (91%)
Source stream size : 5.02 MiB (91%)
Language : English
Encoded date : UTC 2014-05-19 05:24:10
Tagged date : UTC 2014-05-19 05:24:10
mdhd_Duration : 27500

Audio
ID : 1
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : Main
Codec ID : 40
Duration : 27s 539ms
Source duration : 27s 539ms
Bit rate mode : Constant
Bit rate : 144 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 475 KiB (8%)
Source stream size : 475 KiB (8%)
Language : English
Encoded date : UTC 2014-05-19 05:24:10
Tagged date : UTC 2014-05-19 05:24:10
mdhd_Duration : 27539

General
Complete name : C:\Users\Michelle\Documents\Finale\Finale\MEA Music Catalogue\00000 - MEA Music Cataloue - MAIN\videos\YOUTUBE MAKER - MERGED\media file\Movie01-Middle.mp4
Format : MPEG-4
Codec ID : M4V
File size : 20.3 MiB
Duration : 2mn 20s
Overall bit rate : 1 213 Kbps
Encoded date : UTC 2014-05-20 01:44:09
Tagged date : UTC 2014-05-20 01:44:09

Video
ID : 2
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Baseline@L3.1
Format settings, CABAC : No
Format settings, ReFrames : 1 frame
Format settings, GOP : M=1, N=3
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 2mn 20s
Source duration : 2mn 20s
Bit rate : 1 082 Kbps
Width : 864 pixels
Height : 480 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 30.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.087
Stream size : 18.1 MiB (89%)
Source stream size : 18.1 MiB (89%)
Language : English
Encoded date : UTC 2014-05-20 01:44:09
Tagged date : UTC 2014-05-20 01:44:09
mdhd_Duration : 140200

Audio
ID : 1
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : Main
Codec ID : 40
Duration : 2mn 20s
Source duration : 2mn 20s
Bit rate mode : Constant
Bit rate : 128 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 2.14 MiB (11%)
Source stream size : 2.14 MiB (11%)
Language : English
Encoded date : UTC 2014-05-20 01:44:09
Tagged date : UTC 2014-05-20 01:44:09
mdhd_Duration : 140225

General
Complete name : C:\Users\Michelle\Documents\Finale\Finale\MEA Music Catalogue\00000 - MEA Music Cataloue - MAIN\videos\YOUTUBE MAKER - MERGED\media file\Movie01-Outro.mp4
Format : MPEG-4
Codec ID : M4V
File size : 3.20 MiB
Duration : 15s 23ms
Overall bit rate : 1 790 Kbps
Encoded date : UTC 2014-05-17 22:45:44
Tagged date : UTC 2014-05-17 22:45:44

Video
ID : 2
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Baseline@L3.1
Format settings, CABAC : No
Format settings, ReFrames : 1 frame
Format settings, GOP : M=1, N=3
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 15s 0ms
Bit rate : 1 637 Kbps
Width : 864 pixels
Height : 480 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 30.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.132
Stream size : 2.93 MiB (91%)
Language : English
Encoded date : UTC 2014-05-17 22:45:44
Tagged date : UTC 2014-05-17 22:45:44
mdhd_Duration : 15000

Audio
ID : 1
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : Main
Codec ID : 40
Duration : 15s 23ms
Source duration : 15s 23ms
Bit rate mode : Constant
Bit rate : 151 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 277 KiB (8%)
Source stream size : 277 KiB (8%)
Language : English
Encoded date : UTC 2014-05-17 22:45:44
Tagged date : UTC 2014-05-17 22:45:44
mdhd_Duration : 15023

[Ifcpeo]

Formats are all the same for all:
track ID 1 - Audio (SR 44100 - 2 channels)
track ID 2 - Video (size 864 x 480)

That info is not sufficient.

Yes, I realized after I posted. I just needed to get the sufficient software and run it.

[Cornucopia]

Ok, pretty much the same (though I would question using exactly 30pfs, and the M4V format). Now, what EXACT ffmpeg merge command did you use?

Scott

[Ifcpeo]

Ok, pretty much the same (though I would question using exactly 30pfs, and the M4V format). Now, what EXACT ffmpeg merge command did you use?

Scott

Go ahead and question it. I've got no idea what you mean. Feel free to explain instead a "vague" insult. Otherwise it's just a waste of typing.

Anyhow, like I explained above, I incorrectly stated I was using ffmpeg but I am using mp4box. And.... (drum roll!!!) I get it figured out. Forgive me for not being all technical but I figured it out by testing different variations of -force-cat, -cat, -add. I made a list of all the different combinations and ran them through the cmd and found the video with the correct output. I uploaded on to youtube to double check and it's fine.

For anyone having the same issue this worked for me:

mp4box -force-cat -cat Movie01-Intro.mp4 -cat Movie01-Middle.mp4 -cat Movie01-Outro.mp4 -new Movie01-All.mp4

Results - videos are in the correct order, audio is synced, perfection (to me at least)

[Cornucopia]

I didn't say it as an insult, but I can't stop you from taking it that way.

True 30fps is really only meant for PC-oriented, non-broadcast, consumer/hobbyist use. Anything that would get put on a regular TV OUGHT to be 29.97/59.94 in NTSC-lands.And "M4V" is not meant for an Audio+Video MP4 base media container file, it is meant for an elementary stream of MPEG4 video (either MPEG4-SP, MPEG4-ASP, or AVC/MVC). Hence, the "V".

Ok, so you used mp4box, and (clearly) didn't merge them correctly the first time (like I had guessed), but did now. I'm glad you got it working. Had you just answered that original question, we could possibly have worked through the answer with you that much quicker (and without the need for testing).

It's just a suggestion, but it has been shown time and again here that more accurate help is more quickly forthcoming when the OP provides up front a detailed and in-depth explanation of all the features & steps & background of the problem.
(Speaking to all newbies)

Scott