No Audio

Discussion in 'MPEG-1 and MPEG-2 encoding (AVI to DVD)' started by hebblew, May 20, 2006.

  1. hebblew

    hebblew Member

    Joined:
    May 20, 2006
    Messages:
    6
    Likes Received:
    0
    Trophy Points:
    11
    Hi followed the guide for AVI-dvd using all the same software, dvd burns but no sound on playback on computer, panasonic dvd or PS2. audio selection when in dvd says MPEG2.

    Have done this twice, does it differ if when I convert it to mpeg2 if i do not split the audio and video.,
     
  2. aldaco12

    aldaco12 Active member

    Joined:
    Nov 6, 2002
    Messages:
    2,544
    Likes Received:
    0
    Trophy Points:
    66
    Are you sure you authored correctly that DVD?

    Usually an authoring application asks for the video, the audio(s) and the subtitle(s).
    That is:
    - the M2V (the encoder's MPEG2 output)
    - the audio stream(s) (AC3 , MP2 or WAV 48 kHz)
    - (oprional the subtitles)

    Theat application, ususlly, need video and ausio separated. No encoder I know will create a big (4.3 GB large) DVD MPG file .

    Try the plain (and free) IFOEdit, to seee an example. Do DVD Author___Author a new DVD.
    It will create, on your destination directory, a VOB set and the BUP,IFO needed, but if you won't give it any (compliant) audio stream you'll create a 'mute' VOB set.
     
    Last edited: May 23, 2006
  3. hebblew

    hebblew Member

    Joined:
    May 20, 2006
    Messages:
    6
    Likes Received:
    0
    Trophy Points:
    11

    I used TMPGENC-2 to make the mpeg 2 files

    and then IFOEdit to author the dvd using the DVD Author, selected the audio and seperate video mpeg's. and then used the batch of files it created in nero to make the dvd.

    When i open the audio mpeg in Media player it plays for the lenght that the film is but has no sound

    The audio info from the avi i converted is below
    78 MB, 134 Kbps, 48000 Hz, 2 channels, 0x55 = MPEG Layer-3, Supported
     
  4. aldaco12

    aldaco12 Active member

    Joined:
    Nov 6, 2002
    Messages:
    2,544
    Likes Received:
    0
    Trophy Points:
    66
    I don't think DVDs support MP3 (MPEG Layer-3) as AVI have. I'm sure it supports MP2 (normal stereo), instead, or AC3 (1+1 or 5+1 channels). Of course, you won't be able to make a 5+1 audio stream from a 1+1 MP3 stream.

    Therefore I would do this: I would:
    1) extract the audio from that AVI as an uncompressed WAV (open VirtualDub; set audio__Full processing mode; do File___Save WAV)
    2) open HeadAC3he or FFMPEG GUI (use it if HeadAC3he signals you some errors and doesn't work). Load the WAV choose destinaction format: MP2 (I think you can leave the default 224 kbps; If you use FFMPEG GUI you can also choose AC3 192 kbps [2 channels] 48000 Hertz, which is a little smaller)

    Try authoring the DVD loading (with IFOEdit, or the authoring appication you use) as 'audio track' a MP2 or an AC3 stream, not a MP3 one. You should obtain a VOB set with sound, this time. Trust me.
     
    Last edited: May 24, 2006

Share This Page