Audio Codec Vo1+ problem

[condorday]

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.

[davexnet]

Open one of the files with mediainfo, put it in text view, and post the info here in the thread

[condorday]

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

[ProWo]

Try

ffmpeg -i your.avi -c:v copy -c:a aac -b:a 192k output.mkv

[condorday]

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 .......

[autodidact]

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.

[ProWo]

Try to play it with Foobar 2000

[ProWo]

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.

[condorday]

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 .

[ProWo]

Then try to open your avi with avidemux and save the audio track only.

[condorday]

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.

[davexnet]

Can you upload a sample?
Secondly, what is the origin of these files, and have you
ever been able to successfully play them?

[condorday]

@davexnet Thanks, i've never been able to play the audio. I'll let it go now.