• Blackmagic Design

  aftereffect output high frequency attenuation

  Posted by Sun Da qing on October 17, 2005 at 6:46 am

  I find decklink output with SDI will show high frequency attenuation.
  I capture 10bit 4:2:2 swept test singn ,and import aftereffect,and output with decklink sdi,high frequency attenuation will show.
  I guess the reason is aftereffect 4:4:4 RGB TO 4:2:2 YUV change.is reality?
  Can you help me explain the phenomena

  Luke Maslen replied 20 years, 10 months ago 2 Members · 4 Replies
• 4 Replies

• 

  Luke Maslen

  October 17, 2005 at 7:05 am

  Hi,

  Which model of DeckLink card are you using. What software did you use to perform the capture, eg Final Cut Pro or Premiere Pro? Did you perform a high definition or standard definition capture. Are you using Mac OS X or Windows XP? Your answers to these questions will help me to understand your problem?

  Regards,

  Luke Maslen
  Blackmagic Design
• 

  Sun Da qing

  October 17, 2005 at 8:14 am

  Premiere pro capture and premiere output is perfect.
  But Premiere pro capture and aftereffect output will high frequency attenuation .
  premiere pro output copy yuv data to decklink.but aftereffect will yuv to rgb conversion,and rgb to yuv conversion.

  all decklink card is sameness in pal sd.
  my system is pc xpsp2 decklink and decklink hd .
  I will email to you some picture about test.
• 

  Sun Da qing

  October 17, 2005 at 10:01 am

  Luke Maslen :
  may i sent email to you .
  can you tell me you email.I will sent some test picture.
• 

  Luke Maslen

  October 19, 2005 at 4:51 am

  Hi,

  Thank you, that would be very helpful. Please send the pictures to
  pcsupport@blackmagic-design.com

  Regards,

  Luke Maslen
  Blackmagic Design

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