No audio in AVI or mpeg file

[Simon Sudbury]

Hi

Working with family project (captured by someone else-not me). Gist is that the raw AVI file doesn't have any sound when I play in media player or VSX2. The avi video format shows up as mpeg4s Decoder DMO and the audio as "Unknown ACM Format". I naively used this to make an mpeg vid file and tried to tweak the audio using LPCM but the resulting file has no audio either. The avi shows the video compression as mpeg4 but when I use my mpeg4 converter it doesn't recognise it so it's obviously an avi file with an mpeg4 video compression used.

Is there any way to recover the audio in these circumstances?

Thanks

[skier-hughes]

google the audio codec for any results on mp4 ACM format and try installing it.
Ask your friend how the file was made, using what, and see if he can send you the audio codec.
Ask your friend to convert the file to something else that you cna use.

[Simon Sudbury]

Thanks

Slight change to report. The avi has sound but it disappears when I convert using the VSX2 options. Does that make a difference?

[teknisyan]

Here are some of the codecs that you may want to install.
RealPlayer: http://www.real.com/
DivX: http://www.divx.com/en/software/divx-plus/codec-pack
XviD: http://downloads.xvid.org/downloads/xvidcore-1.3.2.zip
Windows Media Player: http://windows.microsoft.com/en-US/wind ... dia-player or just download the Windows Encoder at http://www.microsoft.com/expression/pro ... rview.aspx
QuickTime: http://www.apple.com/quicktime/download/
Direct X: http://on-msn.com/aLrk0j (WinXP)
Direct X: http://www.microsoft.com/Windows/window ... tx-11.aspx

[teknisyan]

Thanks

Slight change to report. The avi has sound but it disappears when I convert using the VSX2 options. Does that make a difference?

Yes but could be the same issue.

[Simon Sudbury]

Many thanks

Used another prog which obviously had the right audio codecs. I was just a bit surprised that the LPCM and mpg settings available in VSX2 didn't help when I created the original mpeg file.