- Re: Demux followed my re-mux has no sound afterwards.
- Posted by Dave J. on July 11th, 2003
On Fri, 11 Jul 2003 00:56:43 GMT, davexnet <davexnet_nospam@yahoo.com>
wrote:
Yes it had sound when played in media player.
It works. I can read/write them as well as mp3. Do you have the mp3
plugin too? It comes with Acid Pro (and also Vegas I think). My stuff
is pretty old. Sound Forge is 4.5 ok?
No I haven't read everything in the help system but let me add that
the audio stream *was* originated from AVI audio and was encoded by
tmpgenc earlier.
BTW: I'm using the Tmpgenc Plus 2.513.53.162
- Posted by davexnet on July 11th, 2003
On Fri, 11 Jul 2003 05:44:05 GMT, Dave J. <dju@nospam.com> wrote:
if you demux it and open the audio component in soundforge,
does it play? Or is the data just a flat line?
Dave
- Posted by Dave J. on July 13th, 2003
On Sun, 13 Jul 2003 09:38:11 GMT, Dave J. <dju@nospam.com> wrote:
Ok I did some testing and I think the problem might be that SF4.5 is
saving the file as an mp3, but with an mp2 extension. When I say "save
as", SF presents an additional dialog that gives me some choices like
data rate and quality. At the top of that dialog, it says "Sonic
Foundry MP3 Plug-in", so I suspect it's actually an mp3.
If I mux this modified audio with video, the sound is quiet except for
short bursts every few seconds and the video stutters badly. I think
this only happens when I change to data rate to the highest setting in
the mp3 file in one test. If I demux this bad file, I get the audio
dumped out as an MPA file instead of an MP2 file this time. And this
file still has good audio in it.
Could Tempgenc be getting confused on the type of file because it
looks at the extension and has minimal error checking? If this is why
then it should show an error instead of carrying-on blindly processing
garbage-in-out.
But... it's not a show stopper. Now I can get around this easily by
renaming the file to .mp3 or save it as .wav then re encode the audio
and mux it back with the video.
