HD video looks horrible in YouTube

GarageSpin wrote on 10/14/2009, 9:17 PM
Hello!

I uploaded my first video to YouTube, a 15-second "test snippet", to get an idea of what the full size video project I'm working on would look like. It looks awful:


These are the specs of the HD file I uploaded:

These are the specs for the file I uploaded:
VIDEO
- AVC
- frames 1280x720
- Profile: main
- Entropy: CAVLC
- Frame rate: 29.970 (ntsc)
- Field Order: none
- Pixel aspect ratio: 1
- bit rate: 5,000,000

AUDIO
- format: AAC
- sample rate: 44,100
- bit rate: 128,000

Format: mp4

Any idea what I'm doing wrong, and why it's so grainy? I thought I followed all the instructions YouTube provides here:
http://www.google.com/support/youtube/bin/answer.py?answer=132460&topic=16612&hl=en-US

Thanks!

-Mike

Comments

musicvid10 wrote on 10/14/2009, 10:29 PM
-- It's not going to look good right away. It takes up to a day for YouTube to process for HD.
-- You have to set your YouTube preferences to play HD by default. The SD version always looks crummy.
-- Your file specs are OK. YouTube HD is going to return 4Mbs or less downstream.
-- CABAC is a better entropy encoding since it is 15% more efficient than CAVLC. (Edited)
-- All that being said, YouTube HD is horrible for motion artifacts. See the direct comparison I posted today here:
http://www.sonycreativesoftware.com/forums/ShowMessage.asp?MessageID=678309&Replies=4

Finally, most HD upload types prefer Vimeo.
panzer948 wrote on 10/18/2009, 4:45 PM
Hi,

I'm just cuious how you were able to use the mp4 format (AVC) at the HD quality frames of 1280x720. I have Sony Vegas Platinum 8 and when I select Sony (or the other mp4 format), the frames are like 320 or something. I don't have an option for many of your specs. I need to upload some HD quality vids to youtube of vimeo. Any suggestions on what I can do using Version 8? Right now I am using .avi files and they are huge!

Thanks,
Eugenia wrote on 10/18/2009, 8:00 PM
You need Platinum 9 to be able to customize SonyAVC. Versions 8 and earlier, and the new product called Sony Vegas Movile Studio HD, don't let you customize the Sony AVC encoder.
panzer948 wrote on 10/18/2009, 9:10 PM
ok, thanks. At least it wasn't something I was doing. Think I will use wmv for codec/format instead.