Extracting audio track from a AVI, not working

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  • Modify_inc
    Junior Member
    Junior Member
    • Nov 2001
    • 22

    Extracting audio track from a AVI, not working

    I have a audio recording that was saved as a avi file, which is strange because there is no video. When I try to play it on my iPhone or Android, it says the file is not supported. Even VLC will not play it, it says:

    Codec not supported:
    VLC could not decode the format "RFBW" (No description for this codec)
    Unidentified codec:
    VLC could not identify the audio or video codec

    I've tried to convert it using other video to audio converters but they all fail.

    I just happen to try it in Windows media player, and to my shock, it actually played it. Now I'm really confused how Windows media player can play it but VLC, which usually plays pretty much anything, fails to.

    Anyone know how I can extract/convert the audio from this stubborn avi? If WMP can play it, is there a way in WMP to convert and save it?

    Here is the MediaInfo from the file if that helps:

    Code:
    General
    
    Format                                   : AVI
    Format/Info                              : Audio Video Interleave
    File size                                : 3.91 MiB
    Duration                                 : 14mn 18s
    Overall bit rate                         : 38.2 Kbps
    
    Video
    ID                                       : 0
    Format                                   : RFBW
    Codec ID                                 : RFBW
    Duration                                 : 14mn 18s
    Bit rate                                 : 8 681 bps
    Width                                    : 3 000 pixels
    Height                                   : 1 920 pixels
    Display aspect ratio                     : 16:10
    Frame rate                               : 100.000 fps
    Bits/(Pixel*Frame)                       : 0.000
    Stream size                              : 910 KiB (23%)
    
    Audio
    ID                                       : 1
    Format                                   : G.729a
    Codec ID                                 : 83
    Codec ID/Hint                            : AT&T
    Duration                                 : 13mn 49s
    Bit rate                                 : 8 000 bps
    Channel(s)                               : 1 channel
    Sampling rate                            : 8 000 Hz
    Bit depth                                : 1 bit
  • mycrof
    Junior Member
    Junior Member
    • Oct 2018
    • 1

    #2
    I'm looking for way to play video files with RFBW codec, do you still have way to play them? What software had you installed?

    Comment

    • danieldan
      Fazer Dinheiro Online
      • Oct 2018
      • 2

      #3
      The same thing happened to me as well, and I thought it was strange. Daniel Silva

      Comment

      • danieldan
        Fazer Dinheiro Online
        • Oct 2018
        • 2

        #4
        Hello

        I am new here. I just happened to say hi

        Comment

        • Victoriategg952
          Junior Member
          Junior Member
          • Oct 2018
          • 1

          #5
          I am new here. I just happened to say hi

          ffmpeg -i input-video.avi -vn -acodec copy output-audio.aac

          vn is no video.
          acodec copy says use the same audio stream that's already in there.

          ffmpeg -i video.mp4 -f mp3 -ab 192000 -vn music.mp3

          Comment

          Working...