Is creating a custom template really necessary though? Can you see a significant difference in your finished YouTube video compared to simply using the Publish & Share/Computer/AVCHD with default YouTube HD preset? I'd be interested in seeing a side-by-side comparison -- just to see if it's worth creating a larger file at a higher bitrade and a longer YouTube transcoding time.
Preset Publish & Share: Computer: AVCHD: YouTube HD can be used as a starting point, with these caveats:
- Transcoding time will be about the same.
- Video bitrate default of 8 Mbps will result in much larger file, and conversion by YouTube which will reduce quality. Because bitrate is so low, conversion artifacts may be visible, particularly in scenes with high motion. Set video bitrate to 4 Mbps to avoid video conversion by YouTube (and set Maximum to 16 Mbps).
- Audio bitrate default of 64 Kbps is much too low for good quality -- use at least 128 Kbps, or better yet 192 Kbps -- the overall file size difference isn't large enough to matter.
- Audio Frequency should be set to match project/source.
- Video framerates above 30 fps will not work well.
Again, every medium has its specific needs. Rather than a super one-size-fits-all solution, it might be best to determine what the video is going to be used for and what medium it's going to be delivered on. There's an optimized format for every purpose.
Indeed, and that's just the point of my posting, an optimized format for YoutTube Full HD!