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How do I record video to a local disk in AIR?

Is there any loss in quality when I connect my cameras direct to a video mixer then direct to a PC via USB.?

  • I have done a bit of research about DV-CAM video cameras and Hard Disk Video Cameras. What I have discovered is that DV-CAM is preferred mostly because the video picture quality is better because it does not get compressed as in the case of Hard Disk cameras which may compress video files by up to 3 times resulting in loss of quality. What I want to know however is this. I have two High Definition cameras which are hard disk types. I intend to connect them to a video mixer a Roland VR-3 and record straight from the mixer to a PC via USB. Since the picture will be coming direct from the cameras without first being saved onto the camera's hard disk, does this help to maintain the good picture quality ( similar to that which would be attainable on a DV-cam tape using a camera of similar resolution) I'm assuming that picture quality is usually lost when the video files are normally saved onto the camera.

  • Answer:

    Keep in mind that the Roland VR3 is a composite video mixer - it will only output composite video quality to your computer. That is your limiting factor.

Simon C at Yahoo! Answers Visit the source

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I agree with Daniel K... The roland mixer does only composite video. This means you connect the camcorder's ANALOG av-out (the yellow RCA plug) to the video mixer. So.. Step 1 = downconvert from digital vidoe to analog video at the camcorder and to the mixer. USB is a bursty format, so at best, standard definition video *might* get transported from the mixer to the computer. If you need high-quality, digital, video from the camcorder all the way through to the computer, then you need to connect using firewire or composite video from the camcorder to the mixer, then firewire or composite or component video from the mixer to the computer. This means replacing the Roland with a more appropriate mixer. Also... DVCAM is Sony's low compression version (other than standard DV) of standard definition video. If you need high definition video, that would be HDCAM (or XDCAM) - not DVCAM. And that Roland mixer certainly can't deal with high definition video... This is not to say the Roland VR-3 (and V-4, VR-5, and V-8) are bad... they are designed for web-streaming standard def video and audio and do a fine job with that. If high definition is a requirement, you need to use the V-440HD. It is the only one of the five that can deal with real high definition video. And if you are planning to stream the video, you will need HUGE bandwidth on the data connection.

Mmm J

About the only way one would know this is if they owned the camcorders you have, have hooked them to a TV via AV cables and tried to see if they can shoot live shots, They would then be able to see if video quality improves,

Palladini

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