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Activity Forums AJA Video Systems DVCPRO 50 via SDI Reduce Import Audio Channels

  • DVCPRO 50 via SDI Reduce Import Audio Channels

    Posted by George Griswold on May 9, 2008 at 11:44 am

    I am importing from a AJ-D95DC Panasonic Deck using SDI through the Aja ioHD to FCP. I have really only used channels 1 and 2 on the recording, but the capture preset (even when I try to edit it) forces me to capture Channels 1-8. When I drag one of these clips to the timeline I have to render the audio. Is there a work around or workflow change that will overcome this?
    There are three settings for the project Stereo, Mono and Surround– none of these seems to effect this issue. What I really want is a mono mixdown for my final edit that will have music and some Nat Sound.

    Also, and I think unrelated, the DVCPRO 50 format is 48kHz at 16 bits, not 24. Using either 16 or 24 bits I still have the red bar when I drag in a clip. Right now I have the audio capture set for 16bits since that would seem to be the native DVCPRO 50 bits.

    The render does not take that long, but I want to sort this out– you hate to see a render bar at the get-go.

    Thank you,
    George

    George Griswold
    http://www.videonow.info
    New Orleans, Louisiana

    David Perry replied 17 years, 12 months ago 2 Members · 2 Replies
  • 2 Replies
  • George Griswold

    May 9, 2008 at 12:59 pm

    Progress through some trial and error. In the capture dialog there are the green “loudspeaker” icons that select which channels to capture– selected Ch 1 and 2 only. Made new project with 24 bit for capture, sequence etc– now there is no red bar when I drag a test clip.

    I still don’t know, but suspect that the ioHD converts to 24 bit since all the presets have 24 bit as the default. Must have been the 8 channels having to render down to my stereo output selection?
    The real comfort with FCP and the Aja ioHD is that I know that there is a way to do almost anything– I just have to explore to find the answer.

    Crisis averted!
    George

    George Griswold
    http://www.videonow.info
    New Orleans, Louisiana

  • David Perry

    May 11, 2008 at 11:34 am

    I have dealt with this issues many times and I find the easiest way is just lock down the video track and channel 1 and 2 and delete the others. The red bar goes away for good.

    David Perry
    Carmen Productions

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