Latest post Sat, May 24 2008 5:12 AM by AndrewAction. 9 replies.
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  • Thu, May 22 2008 3:18 AM

    • psmedia
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    Dreaded aspect ratio conversion problems with Sorenson...

    I am shooting standard def native 16:9, exporting a quick time ref. file from the Adrenaline to Sorenson Squeeze to transcode to an MPEG file for DVD playback with 16:9 pixel aspect ratio with "letter box or pillar" checked on the Large File DVD setting. It plays perfectly fine on a 4:3 standard television showing the letterbox. When I play the dvd through a wide screen television with an aspect ratio of 16:9 it stretches it sideways but looks fine when I change the ratio back to 4:3 on the wide screen television. Essentially, it's doing the complete opposite of what I've compressed it to do.

    I'm using the Avid DVD program to create the final DVD.

    Any suggestions from anyone would be great.

    Thanks.

  • Thu, May 22 2008 8:24 AM In reply to

    • DIESELE
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    Re: Dreaded aspect ratio conversion problems with Sorenson...

    I've posted the way I avoid this elsewhere here (wish I remembered where!) to help avoid others' similar trial & error (and wasted disks!). Quick re-cap:

    Select 'native' size in QTR (then it doesnt get messed with)

    Essentially I think Sorenson just passes it through as a squashed up 4:3 frame - try to achieve this using 'native/raw' whatever it was called.  The Sorenson preview window doesnt affect aspect ratio of output file.

    Using DVDit I ensure that the 16:9 tick box is checked on the imported movie and voila!

    Re-cap: label it as 16:9 on the authoring only, keep everything else as a 'native' or passthrough mode.

    Hope that helps.

     

    D

    MC 3, XP SP2, Asus P5K-E Mobo, Quad Core 2.7Ghz CPU (3.0 Ghz if I'm up against it!), 4Gb 800Mhz RAM Dual channel, 4 x 500Gb SATA Stripe O pairs, Quadro FX 1500 GFX, Soundblaster Audigy.  Approved Avid HP 8240 Notebook. Original DIY PC: Shuttle SN85, AMD 3200, 1Gig Ram, Quadro 980, on board sound, on board firewire, 2 x SATA + WD ext HDD - could that be less 'compatible? Never hiccuped once! :-)

  • Thu, May 22 2008 9:10 AM In reply to

    • bsuttie
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    Re: Dreaded aspect ratio conversion problems with Sorenson...

    Absolutely, you definitely don't want to letterbox it when you compress.

    Yoiu want to create a 16:9 Full Height Anamorphic MPEG2 and author the DVD as 16:9 FHA.  This will then play correctly (Full Screen) on a widescreen TV, and the DVD player will letterbox it for display on a 4:3 TV (assuming the DVD player / TV are set up correctly).

    regards

    Brian

     

    Symphony, Adrenaline, Xpress Pro [view my complete system specs]
    "We'll fix it in post"
    "This is post"
    "aaaahh"
  • Thu, May 22 2008 9:11 AM In reply to

    • bsuttie
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    Re: Dreaded aspect ratio conversion problems with Sorenson...

    Sorry, duplicate post - forum's acting strangely today

    regards

    Brian

     

    Symphony, Adrenaline, Xpress Pro [view my complete system specs]
    "We'll fix it in post"
    "This is post"
    "aaaahh"
  • Thu, May 22 2008 3:53 PM In reply to

    • evansmalley
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    Re: Dreaded aspect ratio conversion problems with Sorenson...

    hey Brian-

    Just wanted to say that I love your little signature graphics- and "this is post"! Hilarious! Think I'll click on the "beer"!

    How has this button been omitted from "The New Thinking"?

    Avid just can't help how out of touch it remains with it's software's effect on the human being- and how badly Avid inspires the need for this button.

    New tech tip: new project>click "beer">Ctrl+C>Ctrl+V>Ctrl+V>Ctrl+V>Ctrl+V>Ctrl+V>Ctrl+V

    the antidote to Avid, you're all welcome...

    P4 XPsp2, 2.8 GHz, 2 gig RAM, 120 gig, 2x160 gig and 80 gig drives, much other external drive'n, dual-monitor mode, 2x MOTU 2408 mk2 ASIO, Tascam US... [view my complete system specs]
  • Thu, May 22 2008 5:41 PM In reply to

    • DIESELE
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    Re: Dreaded aspect ratio conversion problems with Sorenson...

    bsuttie:

    Absolutely, you definitely don't want to letterbox it when you compress.

    Yoiu want to create a 16:9 Full Height Anamorphic MPEG2 and author the DVD as 16:9 FHA.  This will then play correctly (Full Screen) on a widescreen TV, and the DVD player will letterbox it for display on a 4:3 TV (assuming the DVD player / TV are set up correctly).

     

    Isnt that the rub - we all know what 'anamorphic' means but I dont think I have seen that in any TV related menus in Sorenson or DVDit or AvidAngry.  Using proper industry terminology would SO help avoid confusion.  I think most of us put 'FHA' on most broadcast VT clocks even though it's bleeding abvious its squashed up!Idea

    D

     

    MC 3, XP SP2, Asus P5K-E Mobo, Quad Core 2.7Ghz CPU (3.0 Ghz if I'm up against it!), 4Gb 800Mhz RAM Dual channel, 4 x 500Gb SATA Stripe O pairs, Quadro FX 1500 GFX, Soundblaster Audigy.  Approved Avid HP 8240 Notebook. Original DIY PC: Shuttle SN85, AMD 3200, 1Gig Ram, Quadro 980, on board sound, on board firewire, 2 x SATA + WD ext HDD - could that be less 'compatible? Never hiccuped once! :-)

  • Fri, May 23 2008 9:21 AM In reply to

    • bsuttie
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    Re: Dreaded aspect ratio conversion problems with Sorenson...

    Just wanted to say that I love your little signature graphics- and "this is post"! Hilarious! Think I'll click on the "beer"!

    How has this button been omitted from "The New Thinking"?

    Thanks Evan, Avid will probably pick up on the idea soon . . .

    Symphony, Adrenaline, Xpress Pro [view my complete system specs]
    "We'll fix it in post"
    "This is post"
    "aaaahh"
  • Fri, May 23 2008 11:40 AM In reply to

    • evansmalley
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    Re: Dreaded aspect ratio conversion problems with Sorenson...

    bsuttie:
    Thanks Evan, Avid will probably pick up on the idea soon . . .

    not until they get pummeled with three years of "FCP has a better "beer button" and FCP's "beer button" works in PAL 720p25!

    P4 XPsp2, 2.8 GHz, 2 gig RAM, 120 gig, 2x160 gig and 80 gig drives, much other external drive'n, dual-monitor mode, 2x MOTU 2408 mk2 ASIO, Tascam US... [view my complete system specs]
  • Sat, May 24 2008 2:11 AM In reply to

    • psmedia
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    Re: Dreaded aspect ratio conversion problems with Sorenson...

     At the risk of looking like a complete idiot only to keep other idiots from making the same mistake, the only variable I didn't check was the setting on my external dvd player!! It was set on 4:3 not 16:9. Super Angry I tried every combination imagineable from sending the QTref. out differently, which seems to make little difference, to setting different filters and cropping in Sorenson. Oh well, you live and learn.

  • Sat, May 24 2008 5:12 AM In reply to

    Re: Dreaded aspect ratio conversion problems with Sorenson...

    It takes a big person to admit such things. Well done for solving your problem and the courage to post an unexpected cause to help others avoid a similar situation.

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