Hi all I have been going around searching so I do have minimal knowledge about this issue.
I need help on the perfect settings for converting/encoding for youtube HD 1080p videos.
Now the problem is, sometimes and not all the time the video I upload on youtube goes out of sync. Not the audio but the video. The video would lag or go slow for a few secs, then making the video out of sync with the audio. When I playback the video on my pc, it is perfectly fine. It doesn't go out of sync, but after uploading and going through youtube's conversion the video goes out of sync.
The source videos are usually .tp or .ts files. I put them into MP4 containers.
There are 2 programs I use. They are MEGUI and StaxRip and here are the settings I usually use:
StaxRip:
Video - Encoder profile "2pass x264 Film Medium" then change the tune setting to disabled.
Audio - Audio profile "Advance | AAC 96 kbps"
MEGUI:
Video - Video preset "x264: DXVA-HD-HQ" then change bitrate to 4000kbps
Audio - "Nero AAC NDAAC-HE-MultiChannel-HQ-192kbps"
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I did mediainfo report on the my file that has been converted and it seems that the video stream is 1s longer than the audio stream. I also see that AAC sampling rate is 48 KHz when youtube wants 41Khz. I'm thinking these things are the problem? What can I do to fix this?
Here it is:
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 95.9 MiB
Duration : 3mn 14s
Overall bit rate : 4 143 Kbps
Encoded date : UTC 2010-01-02 05:07:20
Tagged date : UTC 2010-01-02 05:07:20
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 3mn 14s
Bit rate mode : Variable
Bit rate : 4 000 Kbps
Maximum bit rate : 6 278 Kbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 29.970 fps
Resolution : 24 bits
Colorimetry : 4:2:0
Scan type : Progressive
Bits/(Pixel*Frame) : 0.064
Stream size : 92.6 MiB (97%)
Writing library : x264 core 68 r1183M f21daff
Encoding settings : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=7 / psy_rd=1.0:0.0 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / chroma_qp_offset=-2 / threads=6 / nr=0 / decimate=1 / mbaff=0 / bframes=3 / b_pyramid=0 / b_adapt=1 / b_bias=0 / direct=1 / wpredb=1 / keyint=250 / keyint_min=25 / scenecut=40 / rc=2pass / bitrate=4000 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / pb_ratio=1.30 / aq=1:1.00
Encoded date : UTC 2010-01-02 05:07:20
Tagged date : UTC 2010-01-02 05:07:21
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format version : Version 4
Format profile : LC
Format settings, SBR : Yes
Format settings, PS : No
Codec ID : 40
Duration : 3mn 13s
Bit rate mode : Variable
Bit rate : 139 Kbps
Maximum bit rate : 150 Kbps
Channel(s) : 2 channels
Channel positions : L R
Sampling rate : 48.0 KHz
Resolution : 16 bits
Stream size : 3.22 MiB (3%)
Encoded date : UTC 2010-01-02 05:07:21
Tagged date : UTC 2010-01-02 05:07:21 -
the problem may be the vbr audio. nothing likes vbr audio. switch to cbr encoding and see if the problem goes away.
--
"a lot of people are better dead" - prisoner KSC2-303 -
I uploaded 600 videos to YouTube, all with VBR audio, and not one that YouTube reencoded was ever out of synch. Personally, I wouldn't think that would have anything to do with it. Almost all used 48kHz sampling as well.
Was that MediaInfo report of the video downloaded from YouTube? If so, did it play out of synch? If not, get it so you can convince yourself the reencoding isn't the problem, but the transmission of the video from YouTube back to you. After all, didn't you say that sometimes they play out of synch and other times they don't? -
This is original source file:
Code:Format : MPEG-TS File size : 372 MiB Duration : 2mn 51s Overall bit rate : 18.2 Mbps Video ID : 17 (0x11) Menu ID : 1 (0x1) Format : MPEG Video Format version : Version 2 Format profile : Main@High Format settings, Matrix : Default Duration : 2mn 51s Bit rate mode : Variable Bit rate : 16.5 Mbps Nominal bit rate : 17.4 Mbps Width : 1 920 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate : 29.970 fps Standard : Component Colorimetry : 4:2:0 Scan type : Interlaced Scan order : Bottom Field First Bits/(Pixel*Frame) : 0.266 Stream size : 337 MiB (91%) Audio ID : 20 (0x14) Menu ID : 1 (0x1) Format : AC-3 Format/Info : Audio Coding 3 Duration : 2mn 51s Bit rate mode : Constant Bit rate : 448 Kbps Channel(s) : 2 channels Channel positions : L R Sampling rate : 48.0 KHz Stream size : 9.15 MiB (2%) Language : Korean
Code:Format : MPEG-4 Format profile : Base Media Codec ID : isom File size : 84.5 MiB Duration : 2mn 51s Overall bit rate : 4 134 Kbps Encoded date : UTC 2010-01-02 17:11:52 Tagged date : UTC 2010-01-02 17:11:52 Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : High@L4.1 Format settings, CABAC : Yes Format settings, ReFrames : 3 frames Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 2mn 51s Bit rate mode : Variable Bit rate : 4 000 Kbps Maximum bit rate : 6 699 Kbps Width : 1 920 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 29.970 fps Resolution : 24 bits Colorimetry : 4:2:0 Scan type : Progressive Bits/(Pixel*Frame) : 0.064 Stream size : 81.9 MiB (97%) Writing library : x264 core 68 r1183M f21daff Encoding settings : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=7 / psy_rd=1.0:0.0 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / chroma_qp_offset=-2 / threads=6 / nr=0 / decimate=1 / mbaff=0 / bframes=3 / b_pyramid=0 / b_adapt=1 / b_bias=0 / direct=1 / wpredb=1 / keyint=250 / keyint_min=25 / scenecut=40 / rc=2pass / bitrate=4000 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / pb_ratio=1.30 / aq=1:1.00 Encoded date : UTC 2010-01-02 17:11:52 Tagged date : UTC 2010-01-02 17:11:53 Audio ID : 2 Format : AAC Format/Info : Advanced Audio Codec Format version : Version 4 Format profile : LC Format settings, SBR : Yes Format settings, PS : No Codec ID : 40 Duration : 2mn 51s Bit rate mode : Variable Bit rate : 128 Kbps Maximum bit rate : 140 Kbps Channel(s) : 2 channels Channel positions : L R Sampling rate : 44.1 KHz Resolution : 16 bits Stream size : 2.61 MiB (3%) Encoded date : UTC 2010-01-02 17:11:53 Tagged date : UTC 2010-01-02 17:11:53
Code:Format : MPEG-4 Format profile : Base Media / Version 2 Codec ID : mp42 File size : 65.4 MiB Duration : 3mn 6s Overall bit rate : 2 939 Kbps Encoded date : UTC 2010-01-02 18:36:40 Tagged date : UTC 2010-01-02 18:36:40 gsst : 0 gstd : 187268 gssd : B4A7DD3A5HH Video ID : 2 Format : AVC Format/Info : Advanced Video Codec Format profile : High@L3.1 Format settings, CABAC : Yes Format settings, ReFrames : 3 frames Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 3mn 6s Bit rate mode : Variable Bit rate : 2 816 Kbps Maximum bit rate : 5 453 Kbps Width : 1 278 pixels Height : 720 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 29.970 fps Resolution : 24 bits Colorimetry : 4:2:0 Scan type : Progressive Bits/(Pixel*Frame) : 0.102 Stream size : 62.7 MiB (96%) Title : (C) 2007 Google Inc. v08.13.2007. Encoded date : UTC 2010-01-02 18:36:40 Tagged date : UTC 2010-01-02 18:36:42 Audio ID : 1 Format : AAC Format/Info : Advanced Audio Codec Format version : Version 4 Format profile : LC Format settings, SBR : No Codec ID : 40 Duration : 3mn 6s Bit rate mode : Variable Bit rate : 120 Kbps Maximum bit rate : 149 Kbps Channel(s) : 2 channels Channel positions : L R Sampling rate : 44.1 KHz Resolution : 16 bits Stream size : 2.68 MiB (4%) Title : (C) 2007 Google Inc. v08.13.2007. Encoded date : UTC 2010-01-02 18:36:40 Tagged date : UTC 2010-01-02 18:36:42
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You're saying the source video is in synch, your reencoded video is in synch, but the version YouTube made and which you downloaded is out of synch when played on your computer? If so I apologize for being dead wrong and wasting your time. I guess the next step would be to take aedipuss's advice and upload a version with CBR audio to see if that fixes the problem.
I should say, I guess, that all the 600 videos I uploaded used VBR MP3 audio, and not AAC audio. -
Any help is appreciated no need for apologies.
As soon as I get time I will do one with CBR/AAC and i will do another with VBR/MP3. I will post the results soon.
If you don't mind me asking, what setting do you use when encoding for youtube uploads? and what program you use? -
Here are more MediaInfo from the same source file as previous post, encoded and downloaded off youtube.
Encoded file with AAC/CBR:
Code:Format : MPEG-4 Format profile : Base Media / Version 2 Codec ID : mp42 File size : 115 MiB Duration : 3mn 5s Overall bit rate : 5 198 Kbps Encoded date : UTC 2010-01-03 06:10:40 Tagged date : UTC 2010-01-03 06:10:40 gsst : 0 gstd : 186270 gssd : B4A7DD365HH Video ID : 2 Format : AVC Format/Info : Advanced Video Codec Format profile : High@L4.0 Format settings, CABAC : Yes Format settings, ReFrames : 3 frames Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 3mn 5s Bit rate mode : Variable Bit rate : 5 074 Kbps Maximum bit rate : 9 555 Kbps Width : 1 918 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 29.970 fps Resolution : 8 bits Colorimetry : 4:2:0 Scan type : Progressive Bits/(Pixel*Frame) : 0.082 Stream size : 112 MiB (98%) Title : (C) 2007 Google Inc. v08.13.2007. Encoded date : UTC 2010-01-03 06:10:40 Tagged date : UTC 2010-01-03 06:10:51 Audio ID : 1 Format : AAC Format/Info : Advanced Audio Codec Format version : Version 4 Format profile : LC Format settings, SBR : No Codec ID : 40 Duration : 3mn 5s Bit rate mode : Variable Bit rate : 121 Kbps Maximum bit rate : 149 Kbps Channel(s) : 2 channels Channel positions : L R Sampling rate : 44.1 KHz Stream size : 2.68 MiB (2%) Title : (C) 2007 Google Inc. v08.13.2007. Encoded date : UTC 2010-01-03 06:10:40 Tagged date : UTC 2010-01-03 06:10:51
Code:Format : MPEG-4 Format profile : Base Media / Version 2 Codec ID : mp42 File size : 115 MiB Duration : 3mn 5s Overall bit rate : 5 198 Kbps Encoded date : UTC 2010-01-03 06:10:40 Tagged date : UTC 2010-01-03 06:10:40 gsst : 0 gstd : 186270 gssd : B4A7DD365HH Video ID : 2 Format : AVC Format/Info : Advanced Video Codec Format profile : High@L4.0 Format settings, CABAC : Yes Format settings, ReFrames : 3 frames Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 3mn 5s Bit rate mode : Variable Bit rate : 5 074 Kbps Maximum bit rate : 9 555 Kbps Width : 1 918 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 29.970 fps Resolution : 24 bits Colorimetry : 4:2:0 Scan type : Progressive Bits/(Pixel*Frame) : 0.082 Stream size : 112 MiB (98%) Title : (C) 2007 Google Inc. v08.13.2007. Encoded date : UTC 2010-01-03 06:10:40 Tagged date : UTC 2010-01-03 06:10:51 Audio ID : 1 Format : AAC Format/Info : Advanced Audio Codec Format version : Version 4 Format profile : LC Format settings, SBR : No Codec ID : 40 Duration : 3mn 5s Bit rate mode : Variable Bit rate : 121 Kbps Maximum bit rate : 149 Kbps Channel(s) : 2 channels Channel positions : L R Sampling rate : 44.1 KHz Resolution : 16 bits Stream size : 2.68 MiB (2%) Title : (C) 2007 Google Inc. v08.13.2007. Encoded date : UTC 2010-01-03 06:10:40 Tagged date : UTC 2010-01-03 06:10:51
Code:Format : MPEG-4 Format profile : Base Media / Version 2 Codec ID : mp42 File size : 114 MiB Duration : 2mn 51s Overall bit rate : 5 561 Kbps Encoded date : UTC 2010-01-03 07:00:00 Tagged date : UTC 2010-01-03 07:00:00 gsst : 0 gstd : 171943 gssd : B4A7DD305HH Video ID : 2 Format : AVC Format/Info : Advanced Video Codec Format profile : High@L4.0 Format settings, CABAC : Yes Format settings, ReFrames : 3 frames Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 2mn 51s Bit rate mode : Variable Bit rate : 5 429 Kbps Maximum bit rate : 10.4 Mbps Width : 1 918 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 30.000 fps Resolution : 8 bits Colorimetry : 4:2:0 Scan type : Progressive Bits/(Pixel*Frame) : 0.087 Stream size : 111 MiB (98%) Title : (C) 2007 Google Inc. v08.13.2007. Encoded date : UTC 2010-01-03 07:00:00 Tagged date : UTC 2010-01-03 07:00:04 Audio ID : 1 Format : AAC Format/Info : Advanced Audio Codec Format version : Version 4 Format profile : LC Format settings, SBR : No Codec ID : 40 Duration : 2mn 51s Bit rate mode : Variable Bit rate : 129 Kbps Maximum bit rate : 148 Kbps Channel(s) : 2 channels Channel positions : L R Sampling rate : 44.1 KHz Stream size : 2.64 MiB (2%) Title : (C) 2007 Google Inc. v08.13.2007. Encoded date : UTC 2010-01-03 07:00:00 Tagged date : UTC 2010-01-03 07:00:04
Code:Format : MPEG-4 Format profile : Base Media / Version 2 Codec ID : mp42 File size : 114 MiB Duration : 2mn 51s Overall bit rate : 5 561 Kbps Encoded date : UTC 2010-01-03 07:00:00 Tagged date : UTC 2010-01-03 07:00:00 gsst : 0 gstd : 171943 gssd : B4A7DD305HH Video ID : 2 Format : AVC Format/Info : Advanced Video Codec Format profile : High@L4.0 Format settings, CABAC : Yes Format settings, ReFrames : 3 frames Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 2mn 51s Bit rate mode : Variable Bit rate : 5 429 Kbps Maximum bit rate : 10.4 Mbps Width : 1 918 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 30.000 fps Resolution : 24 bits Colorimetry : 4:2:0 Scan type : Progressive Bits/(Pixel*Frame) : 0.087 Stream size : 111 MiB (98%) Title : (C) 2007 Google Inc. v08.13.2007. Encoded date : UTC 2010-01-03 07:00:00 Tagged date : UTC 2010-01-03 07:00:04 Audio ID : 1 Format : AAC Format/Info : Advanced Audio Codec Format version : Version 4 Format profile : LC Format settings, SBR : No Codec ID : 40 Duration : 2mn 51s Bit rate mode : Variable Bit rate : 129 Kbps Maximum bit rate : 148 Kbps Channel(s) : 2 channels Channel positions : L R Sampling rate : 44.1 KHz Resolution : 16 bits Stream size : 2.64 MiB (2%) Title : (C) 2007 Google Inc. v08.13.2007. Encoded date : UTC 2010-01-03 07:00:00 Tagged date : UTC 2010-01-03 07:00:04
All these videos playback fine on my pc! -
if those are all from the same source file than i would guess there is something wrong at your end. check the video durations. most the time your encodes end up at 3m 5s and are out of sync and after youtube processes them they are 2m 51s. one that works for you is 2m 51s after your encode and after youtube encodes.
might be a glich in the source files somewhere.--
"a lot of people are better dead" - prisoner KSC2-303 -
I don't understand why all the files play perfectly fine on my pc tho =\
I gotta do more tests.. I will post results later
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