+ Post New Thread
Results 1 to 4 of 4
AV and Multimedia Related Thread, Can someone explain these encoder settings to me... in Technical; We have an exterity encoder box which is used to push a signal from a pc across our TV system, ...
  1. #1
    mrbios's Avatar
    Join Date
    Jun 2007
    Location
    Stroud, Gloucestershire
    Posts
    2,450
    Thank Post
    349
    Thanked 255 Times in 210 Posts
    Rep Power
    98

    Can someone explain these encoder settings to me...

    We have an exterity encoder box which is used to push a signal from a pc across our TV system, but i don't understand the settings on it, any explanations would be excellent:

    Encoder tab.....
    First off we can choose between MPEG-2 and MPEG-4, i know what these are but i don't really know the difference.

    Display resolution, now in the normal sense of those two words i'd kow what it meant, but there are a few selections that throw me off, here are the selections: VGA, QCIF, QVGA, CIF, Half D1 and D1

    The video bitrate goes from 1.5mbps to 15mb

    and finally we have a selection to "half frame rate"

    Input tab...
    Inverse Telecine Mode yes or no?
    VCR Mode yes or no?

    I'd like to optimise these settings for still images, most of the time we just have power point presentations running over the system, it's quite rare we have videos so could someone both explain the options to me and recommend me the best settings for use with power points?

    Thanks for any help here

  2. #2
    Marci's Avatar
    Join Date
    Jun 2008
    Location
    Wakefield, West Yorkshire
    Posts
    888
    Thank Post
    84
    Thanked 234 Times in 193 Posts
    Rep Power
    82
    MPG2 is DVD Standardised with a max data rate of 7mbps, with substandards for VCD, SVCD etc.
    MPG4 is unstandardised(ish) and allows for higher resolutions / HD.

    Resolutions:
    CIF = 352x288
    qCIF = 176x144
    sub-qCIF = 128x96
    nHD = 640x360
    VGA = 640x480
    QVGA = 320x240
    WVGA = 800x480
    SVGA = 800x600
    SVCD = 480x480
    VCD = 352x288 or 352x240

    D1 & Half-D1:
    The DVD resolutions which correspond to the "D1 resolution" are 720576 (or 704576) for 625/50 ("PAL" ) systems and 720480 (or 704480) for 525/59.94 ("NTSC" ) systems. The "half D1" resolution is simply half of that in the horizontal direction: 352576 for 625/50 ("PAL" ) systems and 352480 for 525/59.94 ("NTSC" ) systems. (The pixels in these so-called "half D1" resolutions can be thought of as being double-wide when compared to the "normal" DVD resolutions.) These "halved" resolutions are defined in the official DVD standards, and should be playable on all DVD players, even though the authors of commerical DVDs do not usually use them much. You can use them to save space on a disc when the-material-to-be-encoded does not necessarily warrant the full horizontal resolution.

    Inverse Telecine - captures at 29fps and then software scales it back to 24fps.
    VCR Mode - auto detects and autoswitches to the input when a signal is present.


    The larger the resolution, bitrate & FPS, the more space whatever will take up on the internal disk. It's a case of balancing quality against available disk space.

  3. Thanks to Marci from:

    mrbios (10th June 2011)

  4. #3
    mrbios's Avatar
    Join Date
    Jun 2007
    Location
    Stroud, Gloucestershire
    Posts
    2,450
    Thank Post
    349
    Thanked 255 Times in 210 Posts
    Rep Power
    98
    Thank you Marci, that's excellent information!

  5. #4


    Join Date
    Feb 2007
    Location
    51.405546, -0.510212
    Posts
    8,763
    Thank Post
    222
    Thanked 2,630 Times in 1,938 Posts
    Rep Power
    779
    Quote Originally Posted by mrbios View Post
    First off we can choose between MPEG-2 and MPEG-4
    There are quite a few MPEG-4 standards, but the two most common ones are: MPEG-4 Part 2 (Xvid, DivX) and MPEG-4 Part 10 (a.k.a. H.264). The latter being better than the former.

SHARE:
+ Post New Thread

Similar Threads

  1. Deploy audacity with lame encoder
    By itgeek in forum Windows 7
    Replies: 5
    Last Post: 9th February 2011, 07:09 AM
  2. Expression Encoder 4
    By SYNACK in forum Downloads
    Replies: 1
    Last Post: 8th July 2010, 06:57 AM
  3. Streaming tv Over Ip windows media encoder 9
    By Fontayne56 in forum AV and Multimedia Related
    Replies: 4
    Last Post: 22nd June 2010, 11:54 AM
  4. Capture Card for Windows Media Encoder
    By robknowles in forum Hardware
    Replies: 1
    Last Post: 4th June 2008, 08:55 PM
  5. SMART Notebook + Espresso + Riva Encoder Problem
    By CM786 in forum Educational Software
    Replies: 0
    Last Post: 16th October 2007, 02:22 PM

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
  •