HD Link conversion out of sync at DVinfo.net

Marc Salvatore · June 29th, 2009, 11:36 AM

David,

I have an AVCHD file that I pulled off my Sony SR11 using the sony motion picture browser software. It is 2 hours 20 minutes in length.

I then brought it into HD Link (Neo HD) and converted it to Cineform (high quality). The resulting video file's audio is out of sync.

When I line up the original AVCHD and and the Cineform on the Vegas timeline it shows that the Cineform file is 14 frames out of sync. Any idea what's causing this?

My workaround is to render Cineform directly from the Vegas timeline but it takes much longer to do this.

Thank you, Marc

David Newman · June 29th, 2009, 12:54 PM

More likely a support question. Does it start in sync and goes further out sync? My guess it is the the join points created by sony motion picture browser software, so that there are more audio (or less) audio samples than video.

Marc Salvatore · June 29th, 2009, 01:36 PM

The Cineform clip starts out of sync. I just noticed that at the beginning of the Cineform clip there is 14 frames of green garbage before the clip starts. So basically the audio is running 14 frames ahead of the video.

I'm heading out of town and will file a ticket when I return.

Thanks, Marc

David Newman · June 29th, 2009, 01:43 PM

OK, there they was corrupt data at the beginning of the clip. If you have a short sample that does this, send it to support.

June 29th, 2009, 11:36 AM	#1
Marc Salvatore Regular Crew Join Date: Jun 2007 Location: Jacksonville, OR Posts: 131	HD Link conversion out of sync David, I have an AVCHD file that I pulled off my Sony SR11 using the sony motion picture browser software. It is 2 hours 20 minutes in length. I then brought it into HD Link (Neo HD) and converted it to Cineform (high quality). The resulting video file's audio is out of sync. When I line up the original AVCHD and and the Cineform on the Vegas timeline it shows that the Cineform file is 14 frames out of sync. Any idea what's causing this? My workaround is to render Cineform directly from the Vegas timeline but it takes much longer to do this. Thank you, Marc

June 29th, 2009, 12:54 PM	#2
David Newman Sponsor: CTO, CineForm Inc. Join Date: Jul 2003 Location: Solana Beach, California Posts: 6,058	More likely a support question. Does it start in sync and goes further out sync? My guess it is the the join points created by sony motion picture browser software, so that there are more audio (or less) audio samples than video. __________________ David Newman -- web: www.cineform.com blog: cineform.blogspot.com -- twitter: twitter.com/David_Newman

June 29th, 2009, 01:43 PM	#4
David Newman Sponsor: CTO, CineForm Inc. Join Date: Jul 2003 Location: Solana Beach, California Posts: 6,058	OK, there they was corrupt data at the beginning of the clip. If you have a short sample that does this, send it to support. __________________ David Newman -- web: www.cineform.com blog: cineform.blogspot.com -- twitter: twitter.com/David_Newman

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June 29th, 2009, 01:36 PM	#3
Marc Salvatore Regular Crew Join Date: Jun 2007 Location: Jacksonville, OR Posts: 131	The Cineform clip starts out of sync. I just noticed that at the beginning of the Cineform clip there is 14 frames of green garbage before the clip starts. So basically the audio is running 14 frames ahead of the video. I'm heading out of town and will file a ticket when I return. Thanks, Marc