video standard or signal refers to whether the video signal format is ntsc, pal, or secam. the osprey-540 supports only ntsc-m and pal-b,d,g,h,i formats.

    depending on the exact product version you have, buttons for some or all of the following formats are displayed:

    1 ntsc-m – north america

    2 pal-b, d, g, h, i – many countries in europe and elsewhere. b, d, g, h, and i refer to five nearly identical subformats.

    the following three standards are not supported by the osprey-540 at this time. however, there are other osprey video capture boards that do support these standards. please visit the web site at http://www.ospreyvideo.com/for more information.

    1 ntsc-j – japan

    2 pal-m – brazil

    3 pal-n, nc – argentina, paraguay, uruguay

    full-sized ntsc-m, ntsc-j, and pal-m have 525 lines total, 480 lines visible, per frame and a display rate of 60 fields per second, or 30 interlaced frames per second. full-sized pal (other than pal-m) and secam have 625 lines total, 576 lines visible, per frame and a display rate of 50 fields per second, or 25 interlaced frames per second.

    the standard frame sizes are different for ntsc and pal. for example, the halfframe size in pixels is 320x240 for ntsc, and 384x288 for pal. if you have selected a standard frame size (full, 1/2, 3/8, or 1/4), the driver automatically adjusts the frame size to correspond to the standard. if you have created a custom size, it does not change when you switch between ntsc and pal/secam.

    changes to the standard controls do not take effect until you exit the dialog.