xbox media player and gordian knot encodes

[Maggoty]

Howdy,
I have tried searching the forums and have found nothing. I have a weird problem when making divx movies with gordian knot and playing them back in xbox media player.
Lately I have noticed the problem with the 5.05codec and above. I make 1 cd rips as per usual, with the audio being a variable bit mp3 of 96kh or 112kh or 128kh, depending on the lenght of the movie.
The last movie I encoded was Xmen2 with a audio bit rate of 96kh variable bit mp3 and an average bit rate of 680 or so for the picture, if i can remember correctly.
Now everything turned out beautifully. A perfect 1 cd rip I would consider. Playing the movie on my pc, I don't have a single problem, yet playing the movie on xbox media player, the audio goes out of sync very quickly. By slightly adjusting the audio by -450 ms in xbox media player, it comes back into sync fine and then I don't have a problem.
I'm thinking its a xbox media player problem, but then again, if I encode the movie with divx 5.02 it all works fine?

Anyway, I hope this is in the right forum?

Cheers,
maggoty
:)

[jggimi]

I've moved this to the AVI/DVD Player forum. It's certainly not a Gknot issue, since all Gknot does is manage an encoding process, it does not do the encoding.

But, since you mentioned that the resulting AVI plays fine on a PC-based AVI player, and not on the Xbox Media Player, the fault is likely the latter. Of course, the problem may also be from a change in the codec, or in your codec configuration options as you moved off of 5.02 and onto 5.05, 5.1, etc.

As you probably know, MP3 audio bitrates below 128kbps with default LAME options may cause sync issues as LAME will resample at lower frequencies, unless the --resample option is used. But, since you don't have the problem on a PC, then you probably already knew that, and your platform player is the likely place to look for a cause.

[Schultz]

Maggoty I was wondering if you could try this.. Could you try encoding the Audio with a CBR bitrate instead of a VBR.. Because issues that you may be having is that if i remember right there is a bug in the windows DirectShow which basically allows VBR mp3 to work correctly but you can't reliable seek through the avi file.. While Xbox Media Player is based off of Mplayer for Linux.. What you could also try is the Mplayer port to windows and see if it has issues with the audio also.