Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie
Hi there,
There is an issue with role permissions that is being worked on at the moment.
If you are having trouble with access or permissions on regional forums please post here to get access: https://www.boards.ie/discussion/2058365403/you-do-not-have-permission-for-that#latest

Sound glitch and vision/sound synch issues with Saorview channels today?

  • 13-12-2012 2:39pm
    #1
    Mr Cumulonimbus
    Closed Accounts Posts: 1,463 ✭✭✭


    Digifriendly has posted the following in the "Digital Switchover - UTV Region (DigitalUK)" thread:
    All channels on Mux 1 from Clermont Carn when tuned in have no sound to begin with and stutter for a moment before picture and sound come into synchronisation. This has been happening from this morning. Anyone else experiencing this and has it got anything to do with Mux 2 testing?

    I'm also experiencing this with a Sony EX524 series TV. Reception is from Clermont Carn too. The TV is Saorview approved. It takes 2 to 3 seconds for the sound to come on. Not apparent with an LG (LH2000 series) TV though.

    The test channels on MUX 2 are not affected as neither are Freeview and Freeview HD channels. As Digifriendly suggests, something to do with mux 2 testing maybe?


Comments

  • #2
    zg3409
    Registered Users, Registered Users 2 Posts: 7,034 ✭✭✭zg3409


    They could be testing a new multiplexer. A multiplexer take lots of difference channels and combines them into one stream for broadcast. There is generally just one unit in Dublin, and then ever other site take the same stream.

    Depending on the multiplexer settings it make take longer for a TV just turned on to show a picture or sound. The reason for this is that a whole picture is not sent every time. Only the differences between the current picture and the last picture are sent. Only every so often is a whole new image sent, and then at that point the TV can start to show a picture. Also the better the compression used, the longer the delay between each whole image. Thus it may take a while for the TV to get a whole image. Possibly the testcards are coming from Dublin, along with the normal Mux 1 signals. Depending on the settings it might cause some makes of TVs to display a picture before they really have a full picture ready. Just my guess.


  • #3
    Mr Cumulonimbus
    Closed Accounts Posts: 1,463 ✭✭✭Mr Cumulonimbus


    Noticing too that sound/vision synch on RTE1, TV3 and RTE News Now appears to be out.


  • #4
    Mr Cumulonimbus
    Closed Accounts Posts: 1,463 ✭✭✭Mr Cumulonimbus


    Picture/sound synch problems continuing tonight. Some Saorview channels are unwatchable. Hopefully will be sorted soon.


  • #5
    Digifriendly
    Registered Users, Registered Users 2 Posts: 4,073 ✭✭✭Digifriendly


    Problem seems to have been fixed this morning.


  • #6
    Mr Cumulonimbus
    Closed Accounts Posts: 1,463 ✭✭✭Mr Cumulonimbus


    Yip, seem ok now.

    But now 3e is gone. TV3 broadcasting at the moment in its place, even though the EPG is saying 3e. Also being broadcast in some squashed letterbox format, as is TV3 that is on channel 3 in the EPG.


  • Advertisement
  • #7
    ethernet
    Registered Users, Registered Users 2 Posts: 3,568 ✭✭✭ethernet


    Problem acknowledged by RTÉNL: https://www.facebook.com/saorview/posts/430593173677374


  • #8
    Mr Cumulonimbus
    Closed Accounts Posts: 1,463 ✭✭✭Mr Cumulonimbus


    3e back now. Plus aspect ratio is ok again.


Advertisement