• Apple Final Cut Pro Legacy

  Capture Audio and Video out of Sync

  Posted by Hugh Marshall on April 23, 2009 at 6:43 pm

  We capture video from multiple cameras through a switcher to select the appropriate footage and angle, the audio is fed from a mixer board into a MAC Pro via Aja Konah card. The audio and video go out of sync after capturing for 2 to 3 mins and gets worse the longer we record.

  Any Ideas?

  H. A. Marshall

  John Fishback

  

  replied 17 years, 4 months ago 2 Members · 3 Replies
• 3 Replies

• 

  John Fishback

  April 23, 2009 at 7:37 pm

  Are all recording devices fed with house sync?

  John

  MacPro 8-core 2.8GHz 8 GB RAM OS 10.5.5 QT7.5.5 Kona 3 Dual Cinema 23 ATI Radeon HD 3870
  ATTO ExpressSAS R380 RAID Adapter, PDE Enclosure with 8-drive 6TB RAID 5
  24″ TV-Logic Monitor
  Final Cut Studio 2 (up to date)

  Pro Tools HD w SYNC IO, Yamaha DM1000, Millennia Media HV-3C, Neumann U87, Schoeps Mk41 mics, Genelec Monitors, PrimaLT ISDN
• 

  Hugh Marshall

  April 24, 2009 at 2:02 am

  I’m not totally sure what you’re asking about the sync, it all feeds thru a panasonic switch to the konah card.

  H. A. Marshall
• 

  John Fishback

  April 24, 2009 at 3:23 pm

  A sync signal, also known as reference (ref) sync or black, should be fed to the cameras, switcher and the AJA card. This signal is what keeps all the signals synced so you don’t experience drift.

  John

  MacPro 8-core 2.8GHz 8 GB RAM OS 10.5.5 QT7.5.5 Kona 3 Dual Cinema 23 ATI Radeon HD 3870
  ATTO ExpressSAS R380 RAID Adapter, PDE Enclosure with 8-drive 6TB RAID 5
  24″ TV-Logic Monitor
  Final Cut Studio 2 (up to date)

  Pro Tools HD w SYNC IO, Yamaha DM1000, Millennia Media HV-3C, Neumann U87, Schoeps Mk41 mics, Genelec Monitors, PrimaLT ISDN

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