Bad sound quality in MC / good in WMP


  1. franck102
    Posts : 9
    windows7
       New #1

    Bad sound quality in MC / good in WMP - Solved


    mp3s that play perfectly in WMP are playing with very bad quality in media center (cracking sounds, slow downs...).

    I have seen people with similar issues but mostly with x64 setups. Can this be a driver problem and if so does anyone have a pointer for better audio drivers? This is really frustrating, any help greatly appreciated!

    Here is my setup:

    Operating System Windows 7 Professional Media Center Edition 6.1.7600

    --------[ Summary ]-----------------------------------------------------------------------------------------------------

    Computer:
    Operating System Windows 7 Professional Media Center Edition
    OS Service Pack -
    DirectX 4.09.00.0904 (DirectX 9.0c)
    Computer Name SALON
    User Name Home

    Motherboard:
    CPU Type Intel Pentium 4 530, 3000 MHz (15 x 200)
    Motherboard Name Unknown
    Motherboard Chipset Unknown
    System Memory 2048 MB
    BIOS Type AMI (06/26/08)
    Communication Port Communications Port (COM1)
    Communication Port ECP Printer Port (LPT1)

    Display:
    Video Adapter GeForce PCX 5300
    Video Adapter GeForce PCX 5300
    3D Accelerator nVIDIA GeForce PCX 5300
    Monitor Generic PnP Monitor [NoDB]

    Multimedia:
    Audio Adapter Intel 82801GB ICH7 - High Definition Audio Controller [A-1]

    [ Motherboard ]

    Motherboard Properties:
    Manufacturer ASUSTeK Computer INC.
    Product P5B-MX
    Version x.xx
    Serial Number MB-1234567890
    Last edited by franck102; 16 Oct 2009 at 09:55. Reason: Solved
      My Computer
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  3. franck102
    Posts : 9
    windows7
    Thread Starter
       New #2

    Update: I just installed the latest Realtek drivers and they don't make any difference.
    The problem really seems to be Media Center specific, even the MC starting sound is garbled...
    This really sucks, this is rendering MC completely unusable which was the only reason I installed Windows 7 in the first place

    franck102
      My Computer
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  4. franck102
    Posts : 9
    windows7
    Thread Starter
       New #3

    Update2: I have setup ffdshow to decode MP3 in Media Center as described on Hacking Windows 7 Media Center - Plugins Codecs FFDShow dvrmstoolbox showanalyzer comskip haali shark007 - Hack7MC.com and it didn't make any difference.

    The playback is poor when it is the only thing happening, and worthless if any activity takes place (pressing a button on the remote or a background image changing).

    If the audio drivers are now running outside the kernel, maybe there is a way to give them an extra high priority?
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  6. franck102
    Posts : 9
    windows7
    Thread Starter
       New #4

    Solved... noticed that graphic activity (more than CPU activity) was causing problems, I installed an GeForce 9400GT and connected the MoBo (Asus P5) SPDIF out to the graphic card.
    Perfect sound over DVI with that setup... no idea which of installing the new graphic card or switching to digital out did the trick though.
      My Computer
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