recording movies for quality


    Jun 01 2008 | 4:32 pm
    Hello all.
    I am currently working on a project where I need to record several thousand filmclips via jitter into a database. They need to be recorded with sound. The clips are of people speaking(sitting still) and will be recorded using a new ibook. So far I am unhappy with the quality I have been achieving on the recorded clips.
    The question is simple: What is the best procedure for recording films from a Hd camera via firewire with Jitter. The only criteria is to get the highest possible quality. The sound comes from msp could be recorded as a seperate file joined with the quicktime file, whatever facilitates the highest quality. Tips regarding codecs, camera settings or other relevant info would be much appreciated.
    So far I have been using jit.qt.grab in combination with jit.vcr, also tried grabbing directly to disk from jit.qt.grab but did not see any increase in performance.
    Any tips appreciated.
    Thank you.
    Thor

    • Jun 01 2008 | 4:43 pm
      What messages are you sending with your "write" message? maybe you are
      using an inappropriate codec, or not setting the quality to "max".
      M
      On Jun 1, 2008, at 12:32, Thorolf Thuestad wrote:
      >
      > Hello all.
      >
      > I am currently working on a project where I need to record several
      > thousand filmclips via jitter into a database. They need to be
      > recorded with sound. The clips are of people speaking(sitting still)
      > and will be recorded using a new ibook. So far I am unhappy with the
      > quality I have been achieving on the recorded clips.
      >
      > The question is simple: What is the best procedure for recording
      > films from a Hd camera via firewire with Jitter. The only criteria
      > is to get the highest possible quality. The sound comes from msp
      > could be recorded as a seperate file joined with the quicktime file,
      > whatever facilitates the highest quality. Tips regarding codecs,
      > camera settings or other relevant info would be much appreciated.
      >
      > So far I have been using jit.qt.grab in combination with jit.vcr,
      > also tried grabbing directly to disk from jit.qt.grab but did not
      > see any increase in performance.
      >
      > Any tips appreciated.
      >
      > Thank you.
      > Thor
    • Jun 04 2008 | 9:26 am
      I have tried several codecs, and after much experimentation am using dvpal instead of photojpeg and grabing directly to disk with jit.qt.grab. A lack of clarity on my part that Jitter in this instance is just a layer working over quicktime caused confusion.
      The main problem I am having now is that I am using a Hd camera but am only able to access it in dv mode. I would prefer to get hd if at all possible. I am not having any problems recording hd in other applications. The hd optiuons show up in the device list form jit.qt.grab, but I am not able to access them, only the dv option is functional.
      Any tips on why that is and how the situation may be corrected?