1” C format video tape digital restoration by Archangels

Sdílet
Vložit
  • čas přidán 6. 05. 2024
  • Testing S&W Archangel 1 and 2 with a 1" C format source.
  • Věda a technologie

Komentáře • 7

  • @TTVEaGMXde
    @TTVEaGMXde Před 18 dny

    Snell & Wilcox Archangels Signal Processing Features
    Unsteadiness
    Luminance Flicker
    Dirt
    Tramline Scratch
    Noise and Grain
    Video Dropout
    2 inch Scratch
    Linear Filter
    Multiband Spatial Filter
    Non-Linear Enhancer
    But the question arises whether 660 watts of power consumption would not be better invested in AI today. But only when AI is also i. Since the manufacturer is from the UK, they have only programmed quadruplex (2") head switching point interference suppression, but not B-format (1" with 6-part field)

    • @hdvs
      @hdvs  Před 18 dny

      Thanks for your considerations. As far as I know, head switching artifacts on B-format are way less disturbing than those typical of Quad VTRs. I’ve not tried them with my BCN-52, maybe I’ll do it in the future, when needed. As for lower consumption, you have to consider that they can apply several filters in real time, while software based workstations are not RT and a good performance PC is usually eager of power.

    • @TTVEaGMXde
      @TTVEaGMXde Před 18 dny

      @@hdvs With Quadruplex, the interference was always there when the head disk (head spacing) did not fit without TBC, with B format it only becomes visible when the heads are worn out or the tapes are bad.

    • @hdvs
      @hdvs  Před 18 dny

      @@TTVEaGMXde yes, TBC is mandatory with broadcast machines.

    • @TTVEaGMXde
      @TTVEaGMXde Před 18 dny

      @@hdvs However, this did not come about until the mid-70s. Before that, you had to accept that noise bands would appear when copying if the playback device did not have the right head spacing for the recording device.

    • @hdvs
      @hdvs  Před 18 dny

      @@TTVEaGMXde tape interchange compatibility was always an issue with quad machines. At the beginning, tolerance were so high that video headblocks followed the tapes to be able to play them. Fortunately last generation machines were much better under this profile.