View Full Version : Decklink HD Extreme capture of XL-H1 HDSDI and RCA audio


Michael Galvan
July 19th, 2007, 09:44 AM
Has anyone tried capturing the HD-SDI signal from the XL-H1 and the RCA analog audio out of the camera and into a Decklink HD Extreme? Does capturing it this way at the same time sync the audio with the video signal? For some reason, why do I feel like there will be some sort of audio drift or sync issue doing it this way, if its even possible ...

Douglas Villalba
July 19th, 2007, 11:58 AM
I use the HV20 to capture HDV tapes to DVCPROHD 1080i through component and it stays in sync.
It should work with HD SDI as well.

Kevin Martorana
July 19th, 2007, 07:40 PM
I have captured audio/video from the H1 two different ways.

1. Using a Convergent Connect box...that takes the firewire output....splits the timecode from firewire to RS422 and take the audio (ch. 1 and 2 only) and combines it with HDSDI video...

2. HD SDI video out of the jack pack...and audio from the RCA's into a mixer...then into our NLE. Works fine...no audio drift that we've seen.

Michael Galvan
July 20th, 2007, 04:22 AM
Well, I'd like to go HD-SDI out directly from the camera to the card and RCA out from the camera directly into the card. Unfortunately, I won't have a mixer for this upcoming shoot.

Will going out directly to the card both digitally through the HD-SDI and analog audio through the RCA ports work? WIll the card combine both signals upon record?

Kevin Martorana
July 23rd, 2007, 02:05 PM
Michael..

That's probably more of a questions for Decklink. Hopefully in the software...you have the option to select your video source and audio source. If that's the case..you'll be golden.

Michael Galvan
July 28th, 2007, 11:19 AM
Yes, I reinstalled my Decklink HD Extreme card and tried this and indeed, it does work. I then took the footage and reversed the telecine and brought it back to 23.976. No audio/video sync issues too after the reverse telecine. I love it :)