neoscene quality differances? at DVinfo.net

John Harvey · April 18th, 2009, 11:27 PM

When choosing conversion quality settings, what is really happening to the files besides the size difference? are they all 4:2:2? at first glance they seam visually very similar .

on high my file became 707mb
on medium it was 532mb
on ow it was 432mb

what is are the advantages of using low over high, or med over high, why not high all the time?

thanks for the explanation.

john h

David Taylor · April 18th, 2009, 11:35 PM

John, higher bitrates generally correspond with higher quality, but it also means the files are bigger. ou will probably want to use either Medium or High. Ultimately it is your choice, and a function of how much you "push" your images in post. If you don't push your images too much then Medium might be perfect for you. For more extreme post corrections you might want to go with High.

Perhaps others might have some comments about the settings they use?

John Harvey · April 18th, 2009, 11:53 PM

Would low be a way of reducing the load on my older PC? kind of like a lower res proxy would do if I had that option?

jh

PS: thanks for the quick reply!

David Taylor · April 19th, 2009, 12:31 AM

Yes John, lower data rates (Low setting) also lowers the compute load making processing more friendly for a tired PC.

Dale Guthormsen · April 20th, 2009, 03:52 PM

David,

I wondered about these settings too.

does putting it on medium actually degrade your picture or just change a bit rate???

I run it on high for obvious reasons because I didn't I did not know for certain.

Bill Binder · April 22nd, 2009, 11:58 AM

Doesn't lower bit rate = lower quality by definition?

Matt Vanecek · April 22nd, 2009, 02:52 PM

See Cineform's new Web site for a nice write-up on the quality settings: Cineform Tech Blog Blog Archive Understanding CineForm Quality Settings. I'm digging the techblogs Web site...

Thanks
Matt

April 18th, 2009, 11:27 PM	#1
John Harvey Regular Crew Join Date: Feb 2005 Location: los angeles, ca Posts: 76	neoscene quality differances? When choosing conversion quality settings, what is really happening to the files besides the size difference? are they all 4:2:2? at first glance they seam visually very similar . on high my file became 707mb on medium it was 532mb on ow it was 432mb what is are the advantages of using low over high, or med over high, why not high all the time? thanks for the explanation. john h

April 20th, 2009, 03:52 PM	#5
Dale Guthormsen Inner Circle Join Date: Jun 2005 Location: Saskatchewan Posts: 3,048	David, I wondered about these settings too. does putting it on medium actually degrade your picture or just change a bit rate??? I run it on high for obvious reasons because I didn't I did not know for certain. __________________ DATS ALL FOLKS Dale W. Guthormsen

April 18th, 2009, 11:35 PM	#2
David Taylor Major Player Join Date: Sep 2003 Location: Solana Beach, CA Posts: 853	John, higher bitrates generally correspond with higher quality, but it also means the files are bigger. ou will probably want to use either Medium or High. Ultimately it is your choice, and a function of how much you "push" your images in post. If you don't push your images too much then Medium might be perfect for you. For more extreme post corrections you might want to go with High. Perhaps others might have some comments about the settings they use?

April 18th, 2009, 11:53 PM	#3
John Harvey Regular Crew Join Date: Feb 2005 Location: los angeles, ca Posts: 76	Would low be a way of reducing the load on my older PC? kind of like a lower res proxy would do if I had that option? jh PS: thanks for the quick reply!

April 19th, 2009, 12:31 AM	#4
David Taylor Major Player Join Date: Sep 2003 Location: Solana Beach, CA Posts: 853	Yes John, lower data rates (Low setting) also lowers the compute load making processing more friendly for a tired PC.

April 22nd, 2009, 11:58 AM	#6
Bill Binder Major Player Join Date: Jun 2005 Location: San Francisco Posts: 542	Doesn't lower bit rate = lower quality by definition?

April 22nd, 2009, 02:52 PM	#7
Matt Vanecek Major Player Join Date: Jul 2005 Location: Denton, TX Posts: 334	See Cineform's new Web site for a nice write-up on the quality settings: Cineform Tech Blog Blog Archive Understanding CineForm Quality Settings. I'm digging the techblogs Web site... Thanks Matt