Results 1 to 25 of 68

Hybrid View

  1. #1
    Silence of the spam Site Moderator Geoffcin's Avatar
    Join Date
    May 2003
    Location
    NY
    Posts
    3,326
    So, is it 30 degrees or 40.04? Perhaps I'm missing something but the most "immersive cinematic experience” seems a little vague to me. How was that defined, or did a bunch of THX engineers just sit in a screening room and say; That's what looks coolest to us"

    It's pretty telling that their recommendation turns out to exactly match the 1 arc-minute standard used for calcualting 20/20 vision on a static chart.

    For me I like the 30 degree rule better, but it would matter on the subject material. If it's a romantic comedy 3 degrees would be too much for me.

    Oh, and off topic; PS is getting a PM from me about his sig. It will be changed.
    Audio;
    Ming Da MC34-AB 75wpc
    PS Audio Classic 250. 500wpc into 4 ohms.
    PS Audio 4.5 preamp,
    Marantz 6170 TT Shure M97e cart.
    Arcam Alpha 9 CD.- 24 bit dCS Ring DAC.
    Magnepan 3.6r speakers Oak/black,

  2. #2
    M.P.S.E /AES/SMPTE member Sir Terrence the Terrible's Avatar
    Join Date
    Jul 2002
    Posts
    6,826
    Quote Originally Posted by Geoffcin
    So, is it 30 degrees or 40.04? Perhaps I'm missing something but the most "immersive cinematic experience” seems a little vague to me. How was that defined, or did a bunch of THX engineers just sit in a screening room and say; That's what looks coolest to us"
    For Hometheater it is 36 degrees, for the theater it is 40.04. 30 degrees for SMPTE is for smaller theaters with screens that are a more moderate size than what we currently see in theaters now. 30 degrees is their minimum, and 36 is their maximum for larger theaters we currently have. They actually conducted individual tests over a period of 5 years using a large sample of viewers, and they also based their tests on a white that Fujitsu submitted to SMPTE a while ago.

    It's pretty telling that their recommendation turns out to exactly match the 1 arc-minute standard used for calcualting 20/20 vision on a static chart.

    For me I like the 30 degree rule better, but it would matter on the subject material. If it's a romantic comedy 3 degrees would be too much for me.
    LOL, I get that last statement! I admit, if you are not used to looking at a screen with a 36 degree viewing angle, it would probably make me uncomfortable as well. But after 25 years of working on sound for film, I have gotten so used to it, that nothing else works for me.

    Oh, and off topic; PS is getting a PM from me about his sig. It will be changed.
    Thank you much for the resolution.
    Sir Terrence

    Titan Reference 3D 1080p projector
    200" SI Black Diamond II screen
    Oppo BDP-103D
    Datastat RS20I audio/video processor 12.4 audio setup
    9 Onkyo M-5099 power amp
    9 Onkyo M-510 power amp
    9 Onkyo M-508 power amp
    6 custom CAL amps for subs
    3 custom 3 way horn DSP hybrid monitors
    18 custom 3 way horn DSP hybrid surround/ceiling speakers
    2 custom 15" sealed FFEC servo subs
    4 custom 15" H-PAS FFEC servo subs
    THX Style Baffle wall

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •