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  1. Member
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    Just a quicky, I hope.

    I have a couple of .avi DiVX files, and I want to convert them into 1 .mpg VCD files. Easy-peasy I would have thought.

    What I have done is extracted the audio from both files using VirtualDub into 2 .wav files, then along with the .avi files used TMPGEnc and created 2 .mpg VCD files, then used the MPEG Tools and combined these two files. This works fine, except for a slight "pop" in between the two audio files.

    Any better idea to combine the two? I thought of creating 2 .mpg files with no sound, combining these two, then merging 1 .wav file to this, but couldn't even find an App to combine 2 .wav files into 1!

    Anyone help?



    Thanks,

    J
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  2. Member
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    if you have a wave editor(the kind that goes down to milliseconds) open the wav in it and you'll notice a "spike" on the graph where the merge occurs. and you can delete it out but try to smooth it so that two peeks or two dips touch each other. try not to delete out more than .10 seconds total. i use the wave editor software that came with my soundblaster card and actaully found out about this technique editing music for anime videos.
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  3. Member
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    OK, not quite the technical answer I had hoped but sounds like it might work.

    So you mean extracting the .wav file from the completed .mpg, performing this fix, then merging them again?


    Cheers,

    J
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  4. Member
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    exactly. the pop is part of the audio so unless you "cut" it out, its going to be there. software doesn't(exept for high-end audio soft) know the diference between a split pop and any other sound in a file.
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  5. Member DJRumpy's Avatar
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    If the two avi's have the same framerate, and audio, then just open them in Virtualdub. Open the first file. Set audio, and video to Direct Stream Copy.
    From the FILE menu, select APPEND AVI SEGMENT, and select your second avi.

    Select FILE | SAVE AS AVI. You should have two seemlessly joined AVI files.

    If the pop is still noticable at this point, you can then open your new avi in virutal dub, and select FILE | SAVE AS WAV

    Edit in your audio editor of choice to remove the pop. Multiplex back into your final MPEG.
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  6. I think DJRumpy's suggestion is best although you didn't mention if the "pop" sound was evident at the end of the original AVI part 1 or beginning of part 2?
    If it is,then I would open the audio wav in something like Goldwave and replace the pop before encoding.
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  7. Member
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    Apologies for the delay, been on holiday for a couple of weeks.

    Thanks for the replies everyone. Have tried the "APPEND AVI SEGMENT" method in VirtualDub, this pretty much does the trick. That's the feature I was after and knew it must exist somewhere!


    Thanks again,

    J
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    ... Furthering this, I decided to cut some pieces out of the movie to make it slightly smaller, but I'm not sure if VirtualDub is handling the DiVX that well.
    I have chosen the 'Selection Start' and 'Selection End' and deleted the portions, but when I "Save as AVI..." the end product is not what was desired but actually includes this piece I was hoping to delete...

    Is "Save as AVI..." not the correct way to process this?


    Cheers,

    Jase
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  9. Virtualdub > Open > Video > check video for freezes.

    this takes a few minutes.
    If you have bad frames a window will pop up telling you how many and where they are located.Jot it down and in Virtualdub:

    Open > Edit > Go-To > tYpe in bad frame start point > ok > go back 1 key frame(button on bottom row) > click on Mark In (little button at the bottom ,second from right) > Edit > Go-To > Type in bad frame end point > ok > go forward 1 key frame > mark out (button ,bottom right) > Edit > Delete selection.
    Repeat above steps with all bad frame sections ,working your way to the beginning of the movie.
    Then Video > Direct Stream > Audio > Direct Stream > File > Save As AVI.
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    OK, no bad frames (at least not in the source, perhaps in the created file however).

    Interestingly, when I chose frames from the FRONT of the DiVX .avi file, "Delete" these and then 'Save as AVI...' they are not removed from the created file. Just done some testing on this, and it only seems to do this for anything less than 10 seconds. If I chose to Delete more than 10 seconds, all is hunky-dory. ???
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  11. Theres a seriously cool program called Sound Laundry, its very good, cleans up just that pops and cracks, noise and filters it out very effectivly.

    Im not sure where to get it of the top of My head but just do some searching, Im sure youll get it

    ciao

    TLTw
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  12. Member
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    hmmm OK I might give it a try, however this trick in VirtualDub does seem to do the trick, however as I mentiond I can't remove the initial 10seconds from the .avi. Anything more and it works fine, anything under 10 seconds and the produced file is exactly the same. Weird... any ideas?

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  13. Member vhelp's Avatar
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    jase,

    this may be the only idea for you (worked for me in another audio issue)

    If you have a SoundBlaster (SB) card installed, I would go ahead and use the
    SoundRecorder from SB, and set it up to record in "WhatYouHear" mode or
    something like that (can't remember the exact words) and, go ahead and
    play your movie, or first 10 seconds of it or so, and record it w/ SB
    SoundRecorder app into a *.WAV file.

    Then, use whatever *.WAV app to edit (merge the *.wav files in question)
    and THAT should cure your 10 second missing audio. Actually, SB's
    SoundRecorder has it's use you know. If all else fails, I just hook up my
    Mic to my Accoustic Guitar, and jam with a slight Chorus effect, and I tell
    ya, I sound so damn good, like studio quality, he, he... oh, yes, and I'm
    recording it all in digital (well, *.wav anyways) and then I convert the
    Guitar *.wav'ed file to a MP3 for really small/tight azz sound he, he...

    But, do check out the SB SoundRecorder thing - might be your answer, as
    a last resort though.

    -vhelp
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