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  1. 18th Jun 2011 09:14 #1
    JackyWang
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    Hello! Can someone please help me to figure it out what exact problem.

    I'm using TAW4 and now I'm having a problem with and AVI files contain AC3 audio. My input file was AC3 (5.1 Ch) audio but when I load it into TAW4 I only got 2 ch audio (please see the pics).

    I'm sure it has something to do with Audio Codec but I can't figure it out how to fix it. I'm really need your help on this problem. Please help me.

    Thanks.

    PS: I tested a lot of files with an AC3 audio (MP4, AVI) but I got the same result.

    Click image for larger version Name: GSpot.jpg Views: 1024 Size: 627.9 KB ID: 7450

    Click image for larger version Name: MediaInfo.jpg Views: 1066 Size: 227.4 KB ID: 7449Click image for larger version Name: TAW4.jpg Views: 1024 Size: 256.1 KB ID: 7448
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  2. 18th Jun 2011 13:52 #2
    lordsmurf
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    Does TAW4 do 5.1?
    I don't believe it does.
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  3. 18th Jun 2011 14:02 #3
    johns0
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    TAW4 does 5.1 dd but you have to specify it to recode to that before authoring,if the audio is already 5.1 dd it should leave it alone unless there's something wrong with it.
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  4. 18th Jun 2011 15:22 #4
    davexnet
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    Perhaps because it's using the directshow file reader. There could be a mixer in the chain somewhere
    down-converting to 2 channels.
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  5. 18th Jun 2011 19:39 #5
    JackyWang
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    I'm sure TAW4 does support AC3 Audio input.


    davexnet: maybe you are right. Do you have any idea how to fix it?

    Thanks everyone for helping me.
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  6. 18th Jun 2011 21:21 #6
    lordsmurf
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    Originally Posted by davexnet View Post
    Perhaps because it's using the directshow file reader..
    Good catch.
    That may be it. Some system codec/filter is causing this.
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  7. 19th Jun 2011 20:28 #7
    JackyWang
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    I knew it was a Codec problem but How can I get raid of it???
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  8. 19th Jun 2011 20:40 #8
    davexnet
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    Perhaps you have ac3filter installed, or FFDshow audio config/mixer is forcing 2 channel.
    Check those and disable them temporarily while you do the encode.
    Another method could be to demux the audio from the source file and feed the ac3 file as the audio source direcly.
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  9. 20th Jun 2011 03:30 #9
    Alex_ander
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    I'd demux it and import as separate file for the audio track.
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  10. 20th Jun 2011 05:05 #10
    TimA-C
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    I think TAW4 will work with 5.1 but only if there's no re-encoding - license issues I guess. Try what Alex_ander above suggests, but you may end up having to convert the video to Mpeg2 outside of TAW4 and then just use TAW to author the disk.
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  11. 22nd Jun 2011 10:46 #11
    JackyWang
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    davexnet I'm still can't get what you mean.


    Can you please instruct me how to do it?
    Last edited by JackyWang; 24th Jun 2011 at 06:45.
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