Intermittent "no sound" - live TV and recordings - Sydney, Australia (1 Viewer)


Portal Pro
May 20, 2008
TV-Server Version: RC1 with last SVN
MediaPortal Version: RC1 with last SVN
MediaPortal Skin: BlueTwo
Windows Version: XP SP3
CPU Type: AMD LE-1600
HDD: Plenty
Memory: 2 GB
Motherboard: Gigabyte
Video Card: 8500GT
Video Card Driver: 175.16
Sound Card:
Sound Card AC3:
Sound Card Driver:
1. TV Card: Leadtek DTV1000S
1. TV Card Type:
1. TV Card Driver:
2. TV Card: Leadtek DTV1000S
2. TV Card Type:
2. TV Card Driver:
3. TV Card:
3. TV Card Type:
3. TV Card Driver:
4. TV Card:
4. TV Card Type:
4. TV Card Driver:
MPEG2 Video Codec: PowerDVD 7
MPEG2 Audio Codec: PowerDVD 7
h.264 Video Codec: PowerDVD 7
Satelite/CableTV Provider:
HTPC Case: Antek 2480B
Power Supply:
Remote: Leadtek CoolCommand
TV: Analog
TV - HTPC Connection: S-Video

Hi guys,

I'm in Sydney, Australia. To be honest, I haven't had a chance to fully investigate this problem or review the logs, but the problem I'm having is that - intermittenly - there is no sound when watching live TV.

Originally, this would primarily happen when changing channels, or sometimes when turning live TV on for the first time after a resume from standby. Generally, changing to a different channel, then changing back would mean that the sound would come on OK. Up until yesterday, there'd been no problems with any scheduled recordings, but yesterday a show recorded and when it played back, there was no sound - I even tried playing the recorded file in PowerDVD and it had no sound in there either.

Does anyone have this sort of problem from time to time? If so, what is the likely cause? Is it a broadcast signal problem, a configuration, or a TV-card / driver problem?


Paranoid Delusion

Moderation Manager
  • Premium Supporter
  • June 13, 2005
    United Kingdom United Kingdom
    PDVD7 is not a good sound codec, by far the best one that i know is FFDShow, which i use for everything, including ac3 (enable in config).

    Running the files through gspot will confirm which codecs are needed, or even if there is sound in the file.


    Portal Pro
    May 20, 2008
    Thanks Ray,

    I'll give that a crack!

    Can I happily run the FFDShow audio codec along-side the PDVD7 video codec? I still want to be able to use PDVD7's hardware acceleration for my video card, but all the MediaPortal doco recommends using the same video and audio code provider.



    Retired Team Member
  • Premium Supporter
  • April 26, 2005
    Perth, Australia

    I have had the same issue, and like you not had much time to investigate the issue, it seems to be the changing of channels that kicks it off, or maybe the spike of some interference... i have found tho that using MPA for audio seems to solve the problem and i still get dolby D from the HD channels. i also use PDVD 7.3 video codec and have no real issues with tv playback, using mismatching codecs.

    now all we need is australia to free up the damn epg.. :)




    Portal Pro
    November 8, 2005
    Hi guys,

    I have the same issue. And it started not too long ago when the HD channels finally started sending out proper dolby digital.

    I notice if you skip back 15 secs, or change channel, you can get it to work fine. It seems therefore to be an issue when you change channels (or skip ahead) to a dolby digital soundtrack.


    Retired Team Member
  • Premium Supporter
  • August 3, 2007
    Australia Australia
    Country flag
    Same here, get the same issue even when watching same channel and showes goes into an advertisement. (god send really). Again changing channel and back again resolves it. Only happens once or twice a day so no real big issue from my end.

    I am using ac3 filter as my ausio codec output to SPDIF. Interesting, the amp still show Dolby Digital when this happens. Not much further testing done as usually when happens , wife is in control and too dangerours to override here decision....hehehe


    Portal Pro
    May 20, 2008
    Hi guys,

    Thanks for the replies. Yeah, I haven't had an opportunity to go to RC2 yet, and probably won't until the Olympics is all over and one with, and maybe once I've read an SVN thread that doesn't seem to be full of bug reports. Good to know that at least it doesn't seem to be just me that's having the problem. I did try Paranoid Delusion's suggestion of using FFdshow for sound, and doing lots of test channel changing tonight (SD -> HD -> SD, etc.) didn't throw the problem up. (doesn't mean that's necessarily the fix though - I'll monitor over the next few days).


    p.s. MediaPortal still rocks!

    Users Who Are Viewing This Thread (Users: 0, Guests: 1)

    OP Similar threads Forum Replies Date
    A TV playback intermittently stops on clients Television (MyTV frontend and TV-Server) 4
    mickb 1.25.0 No Sound Installation, configuration support 2
    M TV Server Preview Window is blank, sounds works Television (MyTV frontend and TV-Server) 3
    S [solved] No sound - MKV file MediaPortal 1 Talk 2
    A [solved] menu sounds General 1
    R Normalise sound volume somehow? Television (MyTV frontend and TV-Server) 5
    cbr954rr [solved] No sound after clean install? General 24
    Y [solved] Sound will only come out of TV and not computer attached speakers General 1
    T Missing sound in online streaming service (SVTPlay) General Support 3
    rexdog unhandled exception error, and, no sound on first TV channel selected - fine afterwards General 2
    M No sound on videos General 8
    joecrow Loss of Navigation Sounds on Resume from Sleep Mp 1.21 General Support 10
    N [Rejected] Include BBC Sounds (radio catch up) in the Online Videos plugin Feature Requests 4
    Glith Sound stops working after first playback 1.21 88
    Cowboy [solved] MP1.20 issue with HD audio stream (not all media) watch/edit Videos 6
    stirlinghart [solved] No Rear Surround Sound inside MP2 General 10
    J amazon plays sound but no video OnlineVideos for MediaPortal 2 0
    K MP1.24 HDHomeRun Quatro DVT2 - Pixelation on live TV General Support 1
    S IPTV from online m3u8 for Aussie Live TV General Support 9
    K Flickering live TV playback Newcomers Forum 3
    H [solved] MP2 Wiedergabe von Aufnahmen und Live TV geht nicht Allgemeines Support- und Diskussionsforum 6
    torone Dritter versuch mit Mediaportal 2 Allgemeines Support- und Diskussionsforum 1
    W [solved] MP suddenly Crashes when starting live TV on most channels and on recordings from the same channels General Support 20
    W [solved] MP suddenly Crashes when starting live TV on some channels and on some recordings Television (MyTV frontend and TV-Server) 1
    vvulture UNKNOWN ERROR when starting live TV General Support 6
    Similar threads

    Top Bottom