??

[kgb]

Greetings all

I have read enough to get new ideas about what should i do next, but it seems i am always one step from doing it right.

I also have .avi (DivX 3.11 & 5) files with VBR mp3 audio(t), that we all know have sync. problems with the video file, when encoded directly with TMPGEnc or extracted to PCM .wav from VirtualDub.
The original .DivXs have not the sync. error.

So as some of you sugested i got myself a copy of NanDub (witch was not an easy target to download) and VirtualDubMod.

1. VDubMod like plain VDub detects an improper VBR audio header, but this one asks you if you want to rewrite it with a CBR header. After answering NO, when i go to demux and extract the pure .mp3 file, program locks and has to be aborted. Itself reports that it is not responding for more than 10 seconds due to live lock.

2. If i open the file in VDubMod and leave the audio header as is, by answering not to rewrite the VBR with CBR header or just open the file in NanDub and then try to proces and extract the audio to PCM .wav the two programs report the same error:
ACM reported error on audio decompress [b]

and stop the procesing.

3. If i chose to rewrite the audio header of the .avi file, in VDubMod, i am able to do the demux and save the .mp3 file. It seems like an OK VBR mp3, but the result of converting that file to PCM .wav is the same as with VirtualDub's direct stream copyed audio to mp3 encoded .wav CBR, what i was doing for the past 5 days.
i do all this just to play the damn movie on my computer at home, p200mmx connected on tv.
At last i gave up of makeing a proper VCD mpeg and was going for the .mpeg file with the extracted .mp3, but TMPGEnc's tool for simple multiplex, did report that the .mp3 file is invalid.

Realy, is it that hard to simply demux and get the bloody .mp3 VBR or what ever encoded audio stream and re-encode it or convert to PCM WAV format?
Or is it just me?

Please help, all the new movies i get have this problem. I could re-encode the video in .mp4 with lower resolution, to be able to play on my computer 352 X 288 will be low enough, but it is in my personality to like better VCD's.

[kgb]

Ups...
Sory i am new at this forum, and by mistake i have opened a new thread instead posting to "yet another sync. problem"

My apologies.

[setarip]

With all that you've written, I don't see where you indicate that you tried to USE NanDub (although you've downloaded it):

Simply use NanDub to save the audio stream as an Uncompressed PCM (WAV) file as follows:
Load your original .AVI into NanDub
Set "Video" to "Direct Stream Copy"
Set "Audio" to "Full Processing Mode"
From the "Audio" dropdown menu, select "Compression" - and choose "No compression(PCM)"
From the "File" dropdown menu, select "Save WAV" (Enter a new filename with a ".WAV" extender).Click on "OK"
Then set "Video" to "Direct Stream Copying"
Then save the .AVI as a silent .AVI (set "Audio" to "No audio" after you've saved the WAV file).

Then close NanDub and restart it
Set "Audio" to "No audio"
Load your silent .AVI
Set "Video" to "Direct Stream Copying"
Under "Audio" click on "WAV Audio" and load your .WAV
Set "Audio" to "Full Processing Mode"
From the "Audio" dropdown menu, select "Compression" and choose the appropriate .MP3 settings. Click on "OK"
From the "File" dropdown menu, select "Save as AVI" and save your file with a new filename.

[kgb]

Greetings and thanks for the replay setarip, i was hopeing for that.

"With all that you've written, I don't see where you indicate that you tried to USE NanDub (although you've downloaded it):"

Here

2. If i open the file in VDubMod and leave the audio header as is, by answering not to rewrite the VBR with CBR header or just open the file in NanDub and then try to proces and extract the audio to PCM .wav the two programs report the same error:
ACM reported error on audio decompress [b]

and stop the procesing.

I have done this for so many times, and i will do it again litterary step by step as you explain.
Hope this time it works, i am on onother computer, at home.

I'll post soon what happens. In the meantime, if anyone whants to take a look at the movies i have problems with, just ask. But playing them, you can seen that there is nothing wrong with them, and i have got them from thotaly different locations. One downloaded from the net, the other from store.

[kgb]

I still get this error:
ACM reported error on audio decompress [b]

Thanks for your time & if you have any other suggestions, i'll be happy to try.
Maybe i need some other mp3 decoder in NanDub than Radium Codec 1.2?

If i find a workaround for this problem i'll post
I'l try to do it analog. All i need is a fast computer to play the DivX file and i'll connect the audio output into my line-in to record the input of my soundcard with creative wav studio.

see ya.

[setarip]

A) Sorry I overlooked that mid-sentence change to NanDub in your initial post (You'll get old someday, also ;>})


B) Please do the following:

1) Load the DivX-compressed .AVI video file into VirtualDub (or one of its many variants) or NanDub

2) From the "File" dropdown menu, select "File Information"

3) Post (here) EVERYTHING you see (BOTH video and audio information), or post a screen capture .jpg of the information box


C) Regarding the "ACM" error from within VirtualDubMOD - Try the following (quoted from the VirtualDubMOD documentation):

Options>>Preferences>>Audio Put a checkmark next to "Priss rocks!"

"Added another option in the 'Audio' preferences. This let you use Priss (VirtualDub
internal Mpeg audio decoder) instead of an ACM codec when decoding MP3 streams.
There may be some bugs (in the way I use it, not in Priss ), but it seems this
decoder works better than ACM for MP3 VBR streams "

[kgb]

"A) Sorry I overlooked that mid-sentence change to NanDub in your initial post (You'll get old someday, also ;>})"

No problem. I am understand that long posts can make a headache.

"3) Post (here) EVERYTHING you see (BOTH video and audio information), or post a screen capture .jpg of the information box"

AVI Information (VirtualDubMod)

Video stream
Frame size, fps (us pf) : 640x272, 25fps, 40000us
Length : 163211 frames (1:48:48.44)
FourCC code : DIV3
Decompressor : DivX MPEG-4 Video Codec
Number of key frames : 2259
Min/avg/max/total : 856/8383/24929 (1849K)
Min/avg/max/total : 87/3652/45988 (574137K)
Data rate : 744kbps (0.64% overhead)

Audio stream
Sampling rate : 48000Hz
Chanels : 2 (stereo)
Sample precision : N/A
Audio tag : Tag: 0x0055, ACM Decodable MPEG Layer3
Compresion : MPEG Layer3 Codec (profesional)
Layout : 271998 chunks (3348|0.07s preload)
Length : 271998 samples (5:16:16.60)
Min/avg/max/total : 384/396/11520 (105299K)
Data rate : 132kbps (5.71% overhead)

or the other nasty movie

Video stream
Frame size, fps (us pf) : 640x288, 25fps, 40000us
Length : 113719 frames (1:15:48.76)
FourCC code : DIV3 DivX 3.11 Low Motion
Decompressor : DivX MPEG-4 Video Codec
Number of key frames : 621
Min/avg/max/total : 907/12248/47405 (7429K)
Min/avg/max/total : 92/5698/46683 (629335K)
Data rate : 1147kbps (0.42% overhead)

Audio stream
Sampling rate : 44100Hz
Chanels : 2 (stereo)
Sample precision : N/A
Audio tag : Tag: 0x0055, ACM Decodable MPEG Layer3
Compresion : MPEG Layer3 Codec (profesional)
Layout : 173609 chunks (3063|0.07s preload)
Length : 173609 samples (3:21:00.39)
Min/avg/max/total : 104/434/21888 (73664K)
Data rate : 133kbps (5.23% overhead)

"C) Regarding the "ACM" error from within Video stream Try the following (quoted from the VirtualDubMOD documentation):
Options>>Preferences>>Audio Put a checkmark next to "Priss rocks!"

Thanks for the advice, tryin that right now.
In progress...

[kgb]

I gues i have bad luck with this files

"MP3 decoder error: incomplete frame."

Nevermind

Lame ACM codec does not apear in VirtualDub, why is that?

From now on, i'll better encode VCD from DVD.

ps - i'll bet you wont make a difference bettwen 128kbps 44.1KHz stereo CBR (mp3) and 224kbps 48KHz stereo VBR on a plain movie. It's not like it is a HI-FI electronic music...

Opinions. What do you think, is CVD better than sVCD?

[setarip]

1) "i'll bet you wont make a difference bettwen 128kbps 44.1KHz stereo CBR (mp3) and 224kbps 48KHz stereo VBR on a plain movie. It's not like it is a HI-FI electronic music..."

I don't understand your point...



2) "Opinions. What do you think, is CVD better than sVCD?"

In my opinion, the Chinese Video Disk (CVD) format of 352x480 (NTSC) or 352x576 (PAL) generates a higher quality video image for television display than does standard SuperVideoCD (SVCD)...

(Of course, if you meant to type "VCD" [VideoCD] instead of "CVD" [Chinese Video Disk], VCD output quality is significantly lower than taht of standard SVCD - but results in smaller filesizes)

[kgb]

My point was in a question. What are they aiming for encoding average 160kbps VBR 48KHz mp3 for a movie? Saveing diskspace on a HQ sound for the conversation on the movie?
But then again, who am i to judge...

I ment CVD, as you have guesed, and am too for CVD vs sVCD, since i saw the spec. and on the first look you are able to see that it has double the vertical resolution of the VCD.

So, what do you think about that .avi file information i have posted?
Normal DivX, with VBR mp3 audio, i guess.

I could mention the name of the movies (if that's alowed), so if someone has them from the net and already made VCD's may help.

Think this VBR mp3 audio in .avi files makes it difficult for more people, than just me.