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 What are some useful custom settings for Turbo.264 HD?
Solution Turbo.264 HD has many custom settings that you can select.

Two reasons to change these settings are if you want to maximize the video quality, or if you want to get a higher resolution for Apple TV.

Maximum Video Bitrate

Turbo.264 HD has presets like HD 720p and HD 1080p that have a maximum video bit rate of 10Mbps.

You can use a Custom profile setting, to go beyond that level.   The highest bitrate that the software will accept is 20Mbps (20000kbps).  If you enter that, then Turbo.264 HD will use variable encoding to select a level somewhat below that, but above the usual 10Mbps cap.

For 1080p, this may give you an effective bitrate of about 15-17Mbps - it depends on the original footage.




Apple TV Export (720p)


The Apple TV hardware can't play the usual HD video files that are broadcast over antenna or cable.  It has a maximum of 720p, 24 frames per second (fps), with a fairly low bitrate (up to 5Mbps).

Normal Turbo.264 HD exports to Apple TV are 960 by 540 resolution, at least in North America.  To go beyond that level, you can create a custom preset in Turbo.264 HD.



This setting (Apple TV, 1280 by 720, 4500kbps) is something that can work - it will display the "HD" badge in the Apple TV interface.   You can use these settings for source material that's 1080p, 1080i, and 720p - the output will always be 720p.



Article Details
Article ID: 3516
Created On: 24 Mar 2009 07:24 PM

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