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Bit rate in encoding
I’m encoding to DVD with 2 pass VBR. How does the relationship between Max bit, target bit and Minimum bit relate to quality of the DVD? Also, is there a noise reduction filter in PPRO?
Thanks
EG -
4 Replies
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2 pass vbr works best on long movies, 75 minutes and longer where the average bitrate must be below about 5500 kbps. If the movie has a good mix of low and high motion scenes, the encoder can go much higher (max) than the average (target) by using less bits on low motion (Min) scenes, hense the term “variable” bit rate. Stay below about 8500 max and above 3500 min. The target is the length of your movie divided by the capacity of the disc.
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Thanks Mike,
So if my piece is 4:15 minutes long. How do I calculate the optimum bitrates? Obviously space on the DVD is not an issue so is it not the case where higher is better?
EG -
Movie less than 50 minutes cant benefit from VBR, as the target and max cant go above about 8500 (w/dolby) with choking some players or exceeding the DVD spec max of 9800.
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Thanks, yes, I’ve tried both CBR and VBR and couldn’t tell the difference.
EG
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