"New" ITV1 HD channel

grimtales1grimtales1 Posts: 46,693
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I mean the ads with Ant & Dec.
Are ITV advertising this because of Freeview HD or will more shows be added to the exsisting service on Freesat? :)

Comments

  • nwhitfieldnwhitfield Posts: 4,556
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    Mostly, because it's now much more widely available; it's on all the UK digital platforms, whereas before it was, nominally at least, a Freesat exclusive
  • Nigel GoodwinNigel Goodwin Posts: 58,388
    Forum Member
    grimtales1 wrote: »
    I mean the ads with Ant & Dec.
    Are ITV advertising this because of Freeview HD or will more shows be added to the exsisting service on Freesat? :)

    It's simply because they have an ITV HD channel now, previously there wasn't a channel. It's a simulcast of ITV SD, so is almost entirely upscaled, but it will grow, just as CH4 HD is.
  • grimtales1grimtales1 Posts: 46,693
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    Thanks :)
    Just wondering if I need to update my box.
  • grahamlthompsongrahamlthompson Posts: 18,486
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    grimtales1 wrote: »
    Thanks :)
    Just wondering if I need to update my box.

    Freesat HD boxes should have updated automatically. Check for channel 119
  • stanandjanstanandjan Posts: 762
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    6 months ago the Part-Time ITV HD bit rate was quoted in forums as over 10.5 mbps ie better than the then BBC HD..
    Now that ITV HD is with us .. As an old Cynic,, could i ask..
    Why have i not heard that one is better than the other?
    For that matter anyone know the current rates for both please?
  • grahamlthompsongrahamlthompson Posts: 18,486
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    stanandjan wrote: »
    6 months ago the Part-Time ITV HD bit rate was quoted in forums as over 10.5 mbps ie better than the then BBC HD..
    Now that ITV HD is with us .. As an old Cynic,, could i ask..
    Why have i not heard that one is better than the other?
    For that matter anyone know the current rates for both please?

    They are both about the same, ITV 1 HD video is a bit higher than the BBC but the audio bitrate is lower so in total they are very similar
  • jzeejzee Posts: 25,498
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    audio bitrate is lower so in total they are very similar
    Actually ITV1 HD is slightly more per channel, so in a way it is better:D.
  • grahamlthompsongrahamlthompson Posts: 18,486
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    ITV 1 HD

    General
    ID : 801
    Complete name : E:\†FA Cup Live_ Tottenham Hotspur___‡_20100411_1644.ts
    Format : BDAV
    Format/Info : BluRay Video
    File size : 51.3 MiB
    Duration : 38s 734ms
    Overall bit rate : 11.1 Mbps

    Video
    ID : 2362 (0x93A)
    Menu ID : 10000 (0x2710)
    Format : AVC
    Format/Info : Advanced Video Codec
    Format profile : Main@L4.0
    Format settings, CABAC : Yes
    Format settings, ReFrames : 4 frames
    Duration : 38s 734ms
    Bit rate : 10.2 Mbps
    Width : 1 440 pixels
    Height : 1 080 pixels
    Display aspect ratio : 16/9
    Frame rate : 25.000 fps
    Resolution : 24 bits
    Colorimetry : 4:2:0
    Scan type : Interlaced
    Scan order : Top Field First
    Bits/(Pixel*Frame) : 0.263
    Stream size : 47.1 MiB (92%)

    Audio #1
    ID : 2363 (0x93B)
    Menu ID : 10000 (0x2710)
    Format : AC-3
    Format/Info : Audio Coding 3
    Duration : 38s 336ms
    Bit rate mode : Constant
    Bit rate : 256 Kbps
    Channel(s) : 2 channels
    Channel positions : L R
    Sampling rate : 48.0 KHz
    Video delay : -294ms
    Stream size : 1.17 MiB (2%)
    Language : English
    Language, more info : Hearing impaired

    Audio #2
    ID : 2369 (0x941)
    Menu ID : 10000 (0x2710)
    Format : MPEG Audio
    Format version : Version 1
    Format profile : Layer 2
    Duration : 38s 592ms
    Bit rate mode : Constant
    Bit rate : 192 Kbps
    Channel(s) : 2 channels
    Sampling rate : 48.0 KHz
    Resolution : 16 bits
    Video delay : -343ms
    Stream size : 905 KiB (2%)

    Menu
    ID : 288 (0x120)
    Menu ID : 10000 (0x2710)
    Format : AVC / AC-3 / MPEG Audio
    List : 2362 (0x93A) (AVC) / 2363 (0x93B) (AC-3, eng) / 2369 (0x941) (MPEG Audio, und)
    Language : / eng / und

    BBC HD

    General
    ID : 802
    Complete name : E:\BBC HD Preview_20100305_1140.ts
    Format : BDAV
    Format/Info : BluRay Video
    File size : 61.4 MiB
    Duration : 47s 965ms
    Overall bit rate : 10.7 Mbps

    Video
    ID : 5500 (0x157C)
    Menu ID : 6940 (0x1B1C)
    Format : AVC
    Format/Info : Advanced Video Codec
    Format profile : High@L4.0
    Format settings, CABAC : Yes
    Format settings, ReFrames : 4 frames
    Duration : 47s 965ms
    Bit rate : 9 659 Kbps
    Width : 1 440 pixels
    Height : 1 080 pixels
    Display aspect ratio : 16/9
    Frame rate : 25.000 fps
    Resolution : 24 bits
    Colorimetry : 4:2:0
    Scan type : Interlaced
    Scan order : Top Field First
    Bits/(Pixel*Frame) : 0.248
    Stream size : 55.2 MiB (90%)

    Audio #1
    ID : 5501 (0x157D)
    Menu ID : 6940 (0x1B1C)
    Format : AC-3
    Format/Info : Audio Coding 3
    Duration : 47s 968ms
    Bit rate mode : Constant
    Bit rate : 384 Kbps
    Channel(s) : 6 channels
    Channel positions : Front: L C R, Surround: L R, LFE
    Sampling rate : 48.0 KHz
    Video delay : -1s 99ms
    Stream size : 2.20 MiB (4%)
    Language : English

    Audio #2
    ID : 5502 (0x157E)
    Menu ID : 6940 (0x1B1C)
    Format : MPEG Audio
    Format version : Version 1
    Format profile : Layer 2
    Duration : 47s 880ms
    Bit rate mode : Constant
    Bit rate : 256 Kbps
    Channel(s) : 2 channels
    Sampling rate : 48.0 KHz
    Resolution : 16 bits
    Video delay : -1s 80ms
    Stream size : 1.46 MiB (2%)
    Language : nar

    Text
    ID : 5504 (0x1580)
    Menu ID : 6940 (0x1B1C)
    Format : DVB Subtitles
    Language : English

    Menu
    ID : 258 (0x102)
    Menu ID : 6940 (0x1B1C)
    Format : AVC / AC-3 / MPEG Audio / DVB Subtitles
    List : 5500 (0x157C) (AVC) / 5501 (0x157D) (AC-3, eng) / 5502 (0x157E) (MPEG Audio, NAR) / 5504 (0x1580) (DVB Subtitles, eng)
    Language : / eng / NAR / eng

    Basically they are so similar it's got to be down to encoder performance. Itv has a little more bitrate for video but less for audio which is what I posted
  • jzeejzee Posts: 25,498
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    Basically they are so similar it's got to be down to encoder performance. Itv has a little more bitrate for video but less for audio which is what I posted
    ITV1 HD and BBC HD are equal for stereo with 192kbps AC3, but BBC only uses 384kbps for 5.1, so in theory you are getting less bits, 76.8 vs 96kbps per channel with stereo (or less if you count the .1 as a channel).
  • grahamlthompsongrahamlthompson Posts: 18,486
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    jzee wrote: »
    ITV1 HD and BBC HD are equal for stereo with 192kbps AC3, but BBC only uses 384kbps for 5.1, so in theory you are getting less bits, 76.8 vs 96kbps per channel with stereo (or less if you count the .1 as a channel).

    I know that, I did not say the audio was better on the beeb but simply that the overall bitrate is slightly higher on BBC-HD which it is, and that the video bitrate is slightly higher on ITV-HD which it is (about 5%). Never claimed one was better than the other simply stated the facts.

    In practice the source material has much more effect on picture quality there's good and bad HD pictures on both channels.
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