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View Full Version : 5.1 & Compress. Test -> New Recommendations ?


tommysch
26th September 2003, 15:03
I just started using 5.1 Codec in GKnot and got some funny results from the compressibility test. For the same movie and the exact same settings in GKnot I got a result >70% with 5.0.3 codec and <45% with 5.1 codec.

In the following discussions
http://forums.divx.com/viewtopic.php?topic=53460&forum=6
http://forum.doom9.org/showthread.php?threadid=60749&highlight=5.1+compressibility
I found good explanations for this behaviour.

Now the question is:
I am not an encoding expert and I don't have enough time to encode every movie several times to see how it comes out. Thats why I rely on recommendations by those who know this stuff better than I do.
Starting from the recommended values in the Guides i gathered some experience like "XX% gives me this quality, YY% this quality". With the 5.1 codec, this experience is obsolete, right ? :(

New recommendations anyone ???

BTW: Encoding speed using 5.1 has become very low. I have to choose "standard" in the quality/speed settings AND swith PV off to stay within my limit of "one movie - one night of encoding". 1GHz used to be quite impressive ... not too long ago. :(

Tommy

len0x
26th September 2003, 18:53
Originally posted by tommysch
BTW: Encoding speed using 5.1 has become very low. I have to choose "standard" in the quality/speed settings AND swith PV off to stay within my limit of "one movie - one night of encoding". 1GHz used to be quite impressive ... not too long ago. :(


If you interested you can read my comments about slow mode here (very last post atm): http://forum.doom9.org/showthread.php?s=&threadid=60733&perpage=20&pagenumber=2

But as I haven't really migrated myself from 5.05 I can't comment on comp test...