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  1. Member
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    I'm remastering a set of older clips. A few avi clips have the vo1+ audio codec. I guess vorbis / ogg. My VLC player plays the movie part well, but no sound. I want to convert these clips anyway but both handbrake and shotcut failed to recognize the sound. Is there a way to convert this clip (or perhaps only the sound) into a clip with mp3? Don't want to use online conversion. I assumed that software could do the job so i didn't install any codec (pacs). How can i manage this. preferably using freeware (no online converting) Using windows 7.
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    Open one of the files with mediainfo, put it in text view, and post the info here in the thread
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    This is the relevant information from mediainfo: extension .avi

    1 video stream: MPEG-4 Visual (DivX), First video stream 1410 kb/s 640x480 at MPEG-4 Visual (Divx)
    1 audio stream: Vorbis First audio stream 128 kb/s 48,0 kHz. 2 channels, Vorbis (Mode 1+)

    Writing application: Nandub v1.0 rc2
    Writing library: Nandub build 1853 / release

    More audio info:

    Format: Vorbis
    Format version: mode 1+
    Format settings: floor 1
    Codec ID: 676F
    Bit rate Mode: constant
    Bit rate: 128 kb/s
    Channels 2
    Sampling rate: 48,0 kHz
    Compression mode: lossy
    Stream size: 59,6 MiB
    Interleave, duration : 34 ms (1,00 videoframe)
    Interleave prelaod duration 669 ms
    Writing application: vorbis.acm
    Writing library: libVorbis 1.0 RC3
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  4. Try
    ffmpeg -i your.avi -c:v copy -c:a aac -b:a 192k output.mkv
    Last edited by ProWo; 25th Jan 2021 at 14:21.
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    Thans for your reply.

    Failed. could not find codex parameters for stream 1 (audio : none ...................). consider increasing the value for the analyzeduration and probesize options. Guessed channel layout for input stream #0.1 strereo.. Decoder (codex none) not found for input stream #0.1

    Looks this causes somehow the problem:
    Writing application: Nandub v1.0rc2
    Writing library: Nandub build 1853 / release

    probably i overlooked a thing .......
    Last edited by condorday; 25th Jan 2021 at 19:19.
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    A very old ACM codec was used (vorbis.acm), probably this one: https://www.videohelp.com/software/OGG-Vorbis-ACM-Codec.

    FFmpeg has on old ticket related to this: https://trac.ffmpeg.org/ticket/1690.
    PB
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  7. Another idea.
    Open the AVI in nandub, in the video menu set direct copy, in the audio menu set full processing mode with wav as output and then save to new avi.
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    Well Nandub : couldnt load decompressor for format dx50 (will check that out and try to fix it later). Foobar didnt open the avi file and i tried the acm codec but no succes either .
    Last edited by condorday; 26th Jan 2021 at 03:55.
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  9. Then try to open your avi with avidemux and save the audio track only.
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    Thanks to all, especially ProWo for your effort again. Learned a lot in two days with this excellent forum. Unfortunately i couldn't solve the problem although. Avidemux, i had it already on my computer but also this program didn't work. Well, beginning to think about a corrupt audio file. Suggestions are still welcome.
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    Can you upload a sample?
    Secondly, what is the origin of these files, and have you
    ever been able to successfully play them?
    Last edited by davexnet; 27th Jan 2021 at 16:47.
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    @davexnet Thanks, i've never been able to play the audio. I'll let it go now.
    Last edited by condorday; 28th Jan 2021 at 18:40.
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  13. Originally Posted by autodidact View Post
    A very old ACM codec was used (vorbis.acm), probably this one: https://www.videohelp.com/software/OGG-Vorbis-ACM-Codec.

    FFmpeg has on old ticket related to this: https://trac.ffmpeg.org/ticket/1690.
    I have the same issue and it seems to be this codec indeed. Is there a way to make it work? If I install it, the error doesn't go away. Interestingly, this codec shows up under ACM/VFW (x64) category in codec tweak tool wich seems wrong (I really doubt that this is x64 due to it's age). Is there a way to force some tool to use the specific acm codec for playback?
    Maybe there is something wrong in how it's installed? https://github.com/kunitsyn/ogg-acm-codec/blob/master/vorbisacm.inf
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  14. Sample, please
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  15. Originally Posted by ProWo View Post
    Sample, please
    How? None of the software is able to extract the sample since it can't decode it.
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    Originally Posted by flashmozzg View Post
    Originally Posted by ProWo View Post
    Sample, please
    How? None of the software is able to extract the sample since it can't decode it.
    Post a mediainfo report (text view) or post the complete file
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  17. Ok, since this forum has been unhelpful so far, I post the solution I've found (@condorday you might be interested):
    The issue is just as I've suspected. The vorbis.acm codes linked above ( https://www.videohelp.com/software/OGG-Vorbis-ACM-Codec ) was incorrectly being installed as x64 codec when in fact it was created before x64 was a thing.
    To solve that, I did the following:
    Go to %WINDIR%\SysWOW64 (folder for x86 compat stuff).
    Find cmd.exe in that folder and launch it as an administrator. (Both are important!)
    Now type the following: rundll32.exe setupapi.dll,InstallHinfSection DefaultInstall 0 <Path to extracted codec dir>\vorbisacm.inf
    Done.
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    Thanks for the update, this is a similar procedure to install huffyuv on 64bit OS
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