8 Replies Latest reply: Nov 6, 2012 11:20 AM by toti54
toti54 Level 1 Level 1 (0 points)

Hi!

 

I am compressing at ProRes 422 

1920x1080 - 25p

16 bit audio

 

(original footage on HDV 1080p 25p)

 

am I loosing quality because of the frame rate...? or are my compression settings good enough, it has been performing well.

 

cheers,

 

maria from sydney


Final Cut Pro X, Quicktime
  • Tom Wolsky Level 10 Level 10 (111,835 points)

    Are you using 7toX? There should be zero loss.

  • toti54 Level 1 Level 1 (0 points)

    Hi Tom,

     

    yes I am editing on FCP 7 then exporting to X

    so, if I compressed at 1920 x 1080 can I change those dimensions to 1440x1080 (HD) - was told this is the right dimensions for HD.

     

    I used other proportions by mistake, I was told for HD I should use 1440x1080, so my question is when i change those proportions by mistake... does that affect the quality... or should I re-compress.

     

    Also, if I see horizontal lines, is that the scanning... or am I loosing quality somewhere. Should I not worry about those?

     

    Cheers,

     

    THank you¡

     

    maria

    sydney

  • Tom Wolsky Level 10 Level 10 (111,835 points)

    can I change those dimensions to 1440x1080 (HD) - was told this is the right dimensions for HD.

     

    1440x1080 is an anamorphic HD format. It's one HD format. It's being used less and less. Most devices are now on the Full HD bandwagon.

     

    Horizontal lines sound like interlacing. I think all 1440x1080 formats were interlaced. They're designed for television display, not for computer display.

  • toti54 Level 1 Level 1 (0 points)

    thank you.

     

    which format dimensions do you recommend then? should I keep the 1920 x 1080?

     

    whan you say full HD bandwagon what do you mean?

     

    Your support is very much appreciated as I am editing a documentary and i am getting to know these systems. I was was using avid before.

     

    Kind regards

     

    maria

  • Tom Wolsky Level 10 Level 10 (111,835 points)

    Most HD camera now have the option to shoot 1920x1080, marketed as Full HD. The HDV format can only shoot 1080 in 1440x1080, an anamorphic form of HD. There are other formats as well like DVCPRO HD that use anamorphic forms of HD. 1920x1080 is the the display size that the video is seen in. If you're converting the media for use in FCPX you should use 1920x1080 in ProRes. If you're capturing HDV in FCP7 as native HDV at 1440x0180 you can use that as well. But material you've converted outside of FCP that's not in HDV but converted to ProRes should not be in 1440x1080, as FCPX will not understand it properly, and there's no way to flag it as widescreen.

  • toti54 Level 1 Level 1 (0 points)

    hi Tom!

     

    I am compressing using the settings above, everything ok, but I have some volcano eruption footage shot at NIGHT and although they look perfect on the monitors, once I compress them they become grainy! and not looking so good. Please recommend a compress setting for these shots, they look amazing in the original footage...

     

    thank you for your help!

     

    cheers,

     

    maria p.

    from sydney

  • andynick Level 5 Level 5 (4,925 points)

    Maria, you're double-posting here (not good because it causes a lot of confusion).

    In your other post you say your original footage is 1080i. That is interlaced footage. Tom is trying to point out to you that converting to 1080p (P is for Progressive) is a major process, and almost certainly the cause of your woes.

     

    Use the application "7toX" to convert your FCP 7 project so that you can edit it in FCP X. This means you will reference the original footage, without any conversion or compression.

     

    You need to think about what format (interlaced or progressive) you will output the project to. Google for more information on Interlaced vs Progressive, but as a rule it's best to output the same as the original.

    Andy

  • toti54 Level 1 Level 1 (0 points)

    Hi Andy,

     

    Yes, sorry for the double post.

     

    Here is the thing, I have FCP X on my mac book pro and I would like to use FCP X to do the final edits or advance edits because I feel more comfortable (I dont have a LOT of memory on my laptop but I do like FCP X). The FCP 7 is on another computer which has plenty of memory, I am capturing there, making sequences that I like to call pre-edits.

     

    Then I am compressing those sequences and importing those to FCP X. I am using the settings recommended here:

     

    ProRes 422

    1920x1080 - 25p

    16 bit audio

     

    The original footage was shot on a Panasonic HDVX 1080p 25p

     

    I just realized that although the footage seems okay in general, there are some other shots i.e. a Pan shot of men with low light and volcano at night that are not OK. So I see that the interlace you mention has something to do with this...(!?) The Deck is i1080 although it is set to work with the HDV tapes, etc. And that professional camera...

     

    The question (#1) is:

     

    Can I use this application you mention (7 to X) to compress NOT all the footage (bins, etc) but ONLY the sequences (pre-edits)? How would that work?

    This way I will be exporting to my lap top ONLY the pre-edited sequences, and I dont have to load all the bins in my laptop which will be full too soon. Its a long project.

     

    I am figuring out the most efficient way to edit this long documentary so that is why I am thinking pre-edits. Plus I am not overloading my laptop.

     

    THANK you in advance for your help.

    Regards,

    maria

     

    p.s short question (#2): I will be backing up using the LaCie 1TB FW800 / USB 3.0 ? Is this a good portable memory external drive? (my budget is not too big so, for now, that is how it will work initially, backing up using portable memory and tape!)