Downmix on HDMI / passthrough on SPDIF (1 Viewer)

mmf

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  • August 29, 2007
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    Hi everyone,

    I am currently using the Audio Renderer Changer - Plugin to switch between SPDIF and HDMI-output - so far working great. Used audio codec is the latest FFDSHOW tryouts version.

    The problem - ffdshow is configured for passing through AC3 / DTS. If so, movies are not playing if the HDMI-renderer is configured.

    I need stereo downmix if HDMI-output is used, because my TV is not able to "understand" AC3 or DTS-passthrough. But of course I also need AC3 / DTS-passthrough if SPDIF is used, so my external receiver can decode these tracks.

    So far I am unable to find a solution which works. I tried profiles with FFDSHOW (not working, because the audio renderer is not readable from the automatic profile switcher).

    I already had this scenario working (I guess), but I cannot recall what I did at that time (it was with AC3-Filter).

    Maybe someone can help me out on this one...

    Getting closer to perfection :D

    Kind regards,

    MMF



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    netexplorer

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  • January 21, 2009
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    AW: Downmix on HDMI / passthrough on SPDIF

    Audio Renderer Changer support different registry files for your settings.
    You have to export the registry settings from ffdshow twice.
    -Export the settings for passthrough
    -Configure ffdshow to downmix all content
    -Export these settings for downmix
    -Configure Audio Renderer Changer with the generated .reg files

    To got this working without UAC window, i have to turn off UAC function from Windows.
     

    mmf

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  • August 29, 2007
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    AW: Downmix on HDMI / passthrough on SPDIF

    Thanks netexplorer,

    I will get the solution for working UAC (I think it's just registry ACLs) and post it here for your convenience.

    Works like a charm, never noticed the reg setting in ARC.



    Btw - no UAC because only HKCU is modified :)
    :D
     

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