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How do I limit audio and video kbps – combined?
I’ve been asked to limit my video (640×360) to less than 1000 kbps – audio and video COMBINED.
While I found the setting to limit video in Compressor. I’ve exported twice – first limiting to 999, and then to 800. Both files exceeded my target. Is this just a question of trial-and-error until I hit the magical number, or is there a Compressor setting to limit Audio and Video combined?
Don Wellman
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2 Replies
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Hi Don,
You just need to go set your audio bitrate, subtract that number from 1000kbps and you get the video bitrate you can run while keeping the combined throughput under 1000kbps.
You’ll probably want to use AAC compression on the audio if that fits into your specs. It’s impossible to hit that bitrate without compressing the audio anyways, as 24-bit/48kHz stereo PCM is more than 2000kbps.
IHTH
JC Boulay
Technical Director
Audio Z
Montreal, Canada
http://www.audioz.com -
Thanks… I had been hoping to do it without math (and in the process, create a custom conversion in Compressor that would work with every video for this client). I guess I’ll have to earn my money the old-fashioned way – with math, rather than a check-box.
Don Wellman
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