November 24, 2007


by Chris Randall

Okay, I'm working on my video for this weekend, and my new question is about rendering. I think I've tried every possible combination of file format and compression, and I just can't seem to get an uploadable that sounds worth a shit. What are good render settings for uploading videos to Youtube and Vimeo that sound not-that-bad? I know it's possible because I've seen some that sound quite good. What's the secret? Obviously, I'm starting with the 24-bit mastered AIFF.


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Nov.24.2007 @ 3:43 AM
Stefan Goodchild

Probably make you break out in a cold sweat but that audio has taken a rough old path.

CD, ripped to AAC at 128k to my iPod. Ripped off my iPod and uncompressed to AIFF then recompressed to AAC at 128k again when I compressed the movie for upload to Vimeo who then probably re-compress it again. (I do have the original CD obviously but it's in a storage box somewhere)

How it still even sounds OK is beyond me!

Might be the visuals that are the key oddly. I uploaded a 1280x720 h264 file (max bitrate 3000kbps) with the AAC soundtrack so maybe vimeo don't re-compress the HD movies as hard as SD movies so maybe try uploading an HD version (if you aren't currently)

Laters, Stef


Nov.24.2007 @ 7:36 AM
YouTube recommends:

MPEG4 (Divx, Xvid) format
640x480 resolution
MP3 audio
30 frames per second


Nov.24.2007 @ 8:01 AM
Dont youtube re-encode everything to Flash Video anyway? In which case it seems largely out of your control.

Nov.24.2007 @ 8:32 AM

Youtube encodes to flv, all the high quality videos on youtube are encoded in flv1 before upload and either come under youtube's 350kbps bandwidth limit (which avoids re-encoding by youtube) or are hacked with a hex editor to fool the encoder.

Here's a thread on how to do both of those things:

link []">link []

You can use 44.1 audio with this method. As long as your video bandwidth is under 170 kpbs, you'll have enough left for cd quality sound.


Nov.24.2007 @ 10:53 AM
Chris Randall
I'm working at HD currently, and planned to upload to Vimeo as such; I will naturally have to render a separate version for Youtube. I'll just upload to Vimeo with the recommended AAC settings, as that sounds all right, and see what happens.

The problem is coming in under Youtube's 100 meg upload limit, and having both the video and the audio be at least watchable. I'm sorely disappointed in the latter in the first two videos. I think Gibbon's link might be helpful there, but boy, do I not want to render an FLV _too_.



Nov.24.2007 @ 2:55 PM
Chris Randall
All right, I think I have this one nailed down. As it turns out, MP4 is in actual fact my friend. Who would have thought it?

A video is imminent.



Nov.24.2007 @ 10:19 PM
If you use mp4, you might end up with sync problems once the video is uploaded and transcoded. Youtube's transcoding system changes the framerate on mp4/divx/xvid videos from 30fps to 29.99 or so, 25fps to 24.99 etc. Over the course of the video, the audio will go out of sync with the video.

Riva FLV is good for encoding flv files.


Nov.24.2007 @ 10:24 PM
I forgot to add that mp4 is a lossy compression scheme. Encoding to mp4 first will result in a double lossy encoding once it gets to youtube.

Nov.25.2007 @ 12:23 AM
Chris Randall
This is so fucking stupid, I can't even begin to describe it. So I won't. But suffice to say that I've spent the last 12 hours in fucking abject misery. Every NLE ever made except Avid is the dumbest thing ever made. How did they pull that off?

I even tried Blender, and I should have known better. Blender's best attribute is the fact that it can be stopped in whatever ridiculous thing it has decided to do by the judicious application of CTRL-ALT-DEL. How the fuck do people that have to edit video for multiple formats keep from, e.g., killing their families then themselves?



Nov.25.2007 @ 1:46 AM
> How the fuck do people that have to edit video for multiple formats keep from, e.g., killing their families

apple compressor.


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