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bit rate
This a really basic question but one I need to know. How does a higher or lower bit rate effect your exported video?
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7 Replies
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Higher bit rate….larger file, better quality. Lower bit rate…smaller file size, lower quality (more compression artifacts)
Shane
Little Frog Post
Read my blog, Little Frog in High Def -
What would you say a large file to be in comparison to the bit rate? i have a 1.15 video with a 1000 bit rate. The client thinks it should be around 2,500…what do you think?
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sorry 1 minute and 15 seconds. I’m also exporting a 45m video… what would the best kbits/sec for that be? It’s just a presentation.
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BEST is subjective. Do you want it to look good, or be small?
1:15 with 2500 bit rate…at say 960×540…will look good. At 1000…not so much. Try it. Compress both ways and compare.
Shane
Little Frog Post
Read my blog, Little Frog in High Def -
Thank you! I’m just looking to understand the balance a little bit better. How did you determine that estimate? I usually work with videos between 2-5 minutes in length. Would the bit-rate be 4000 for something like that? And is it the same as kbits/sec? Sorry for all of the questions I’m just trying to get a good understanding on this.
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[kelly armstrong] “How did you determine that estimate?”
Experience. Trial and error.
[kelly armstrong] ” I usually work with videos between 2-5 minutes in length. Would the bit-rate be 4000 for something like that?”
No. The bit rate doesn’t double when you increase the times.
[kelly armstrong] “And is it the same as kbits/sec? Sorry for all of the questions I’m just trying to get a good understanding on this.”
Compression is a dark art…is a full profession onto itself.
Might I suggest this:
https://www.peachpit.com/store/product.aspx?isbn=0321497031
Shane
Little Frog Post
Read my blog, Little Frog in High Def
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