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Compression Settings for Broadcast
I shot all footage HD 960×720. Then the edited spot is placed into a 720×480. I need to know the correct settings for outputting a H.264 QT file for broadcast stations. I need the highest quality that will upload over an ftp site in a reasonable time frame. Any help would be greatly appreciated.
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1 Reply
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Each station or cable outlet will have their own specifications. So you need to ask them. Most accept either MPEG2 or H.264/mov files.
Most want 720×480, progressive preferred, if interlaced, upper is usually preferred but some stations take either. Data rates are usually 12Mb/sec or higher for MPEG2, and 2500KB/sec or higher for H.264/Quicktime. Audio is typically 16 bit 48khz at at least 192kb/sec and usually at -12dB digital audio standard.
But some stations have odd specs. Just last week one station wanted their spots with 0 IRE black. That’s the first time I’ve ever seen a station ask for that and we’ve been doing digital uploads since the early part of this decade.
Chris Blair
Magnetic Image, Inc.
Evansville, IN
http://www.videomi.com
Read our blog http://www.videomi.com/blog
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