Hallo everyone.

First of all I have to thank everyone who are helping on this board, it have helped me alot. Thanks.

My question this time is about the audiostream in a divx-file that isn't working. When playing the movie in for example The Playa there isn't any sound. The thing I wan't to do is to get the divx into mpeg1 but the sound can't work if there isn't any sound in the divx-file, right? I loaded the divx into Virtual Dub and watched the "File information". There I read following datas:

"Sampling rate" - 48000 Hz "(should be 44100 Hz?).
"Channels" - 2(stereo).
"Sample precision" - 0 bit.
"Compression" - Unknown (tag 2000).
"Preload skew" - 12000 samples (0,25 s)
"# of frames" - 81735
"Min/avg/max/Total framesize" - 12/1001/12000 (79909K)

I tried to save the file in 44100 Hz as a wav-file but it didn't work. Virtual Dub said that the requested audiocompression wasn't compatible with the inputformat. Well my question is if there is something wrong with the audiostream in the divx-file or if I can change the sampling rate to 44100 Hz in some way. This so it later can be converted with sound to Mpeg1 in TMPGenc.

Thanks in advance

I capture TV to an MPEG2 file using dazzle DVC II.
When I try to convert the mpg file to S video CD using tmpgenc latest version, I get an error mesage as soon as I hit the Start button. It says " the error was caused when ACM was initialised".
What does this mean?
I can encode to DVD ok.
Thanks

Don't capture in MPEG directly, bad idea!

capture in avi using these settings:

NO RECOMPRESSION
YU12
320*240
25*30fps
CD quality audio


Then convert to MPEG using TMPGENC

if u cant, then make sure you convert the MPEG audio to uncompressed PCM audio/MP3 audio

Techno

Thanks for the reply.
>>Don't capture in MPEG directly, bad idea!


-I have the dazzle digital video creator II which doesn't capture AVI.

>>if u cant, then make sure you convert the MPEG audio to uncompressed PCM audio/MP3 audio

-sorry to be stupid. but how do you do this??
Thanks

I capture TV to an MPEG2 file using dazzle DVC II.
When I try to convert the mpg file to S video CD using tmpgenc latest version, I get an error mesage as soon as I hit the Start button. It says " the error was caused when ACM was initialised".
What does this mean?
I can encode to DVD ok.
Thanks

Don't capture in MPEG directly, bad idea!

capture in avi using these settings:

NO RECOMPRESSION
YU12
320*240
25*30fps
CD quality audio


Then convert to MPEG using TMPGENC

if u cant, then make sure you convert the MPEG audio to uncompressed PCM audio/MP3 audio

Techno

From within TMPGEnc, toolame completes the encoding... or at least it seams.. it went fairly quick. The toolame screen goes away, TMPGEnc attempts to start transcoding video with the new audio file and returns an "Illegal MPEG audiostream" error. Project then aborts...

extract the audio using virtualdub as wave then open the wave and video in TMPGENC and encode

Techno

ok guys i have been here before but i cant seem to fix this problem

i am using the latest TMPG enc the file i use was an avi

first of all i extracted the audio file to a wav file 44100Hz using Virtualdub

then i loaded the avi to TMPG and wav files of course

the settings are :- 352x288 25fps 44100Hz

operating system is windows 98 with amd 166+ processor and 256 ddr memory 71Gb free hard disk drive space

Pleeeeeeeeeeeze help

if audio is faster than video, increase the frame rate
if audio is slower than video, decrease the frame rate

Techno

thanks for your help

no probs

Glad to help

Techno

i have found big data spikes per FRAME in CBR mode with TMPGEnc, which is a shame as its generally brilliant. Does anyone know how to alter the data load across frames or smooth out these spikes?
per second data rate is fine.
ta

What are you encoding ? SVCD or VCD ?

Hmm what is the problem ? if you stick to the templates it should be fine even if you have dataspikes ?

Or ?

/Regards Dennis

i am encoding MPEG1 for some networking project which is less tolerant. The spikes are up to 66 Kbytes per frame when encoding at 1600 Kbits/sec. It is loading up 1 frame of the 25 with a third of the data (66Kbytes) when an average should be 64Kbits. Up to 50Kbytes per frame would be ok but 66 is just too big.
Any ideas appreciated!
Thanks.

Hmm... i have a problem that could have the same root-cause.
If i play a VCD encoded with TMPGEnc (standard VCD-PAL-template) on a DVD-player, then sometimes the video jumps. It looks like one frame is missing and the player then simply repeats the old frame.
These jumps are always on the exact same place in the video.

If the datarate of one frame is way to high, then this could be the cause.

If i change encoding to better quality, then the place where these jumps occure do change, but they are still in.

I looked into the file with Bitrate-viewer... but i could NOT see big datarate-spikes.

lu: With which tool did you detect the datarate-spikes?

a friend of mine can work it out but i don't actually have a tool. I have been looking for one as well but no joy. If I find one i'll let you know.
It would be really cool if we could work this out!
L8er

To make sure that we have the same problem i could encode a short part of movie, check, that this part has this problem, and send you the mpg-file.
Could your friend then check, if there is such a spice in?
Or maybe you can ask him which tool he uses?
I used the bitrate-viewer, and with this i could not detect a spice.

I've tried using TMPGEnc 2.53.35.130 to split a large MPEG2 file into 3 sections, using the Merge & Cut MPEG tool. While the split is successful, the video overruns past the end of the first two selected sections by about 30 seconds. The audio stops where it should. Sync between both is fine.

Does anyone know of a workaround for this?

seems like a bug because there are people here saying the same thing! :)

Try doing each file 30 secs before the next one

Techno

When making vcds with TMPGENc I get some audio problems, namely there's a lot of hissing and buzzing at higher fequencies, eg. female voices.
I know the source audio file is fine
Any reason for this problem, settings that might help?
Thanks
Mani

What is the sampling rate and bitrate u are using?

Techno

Try using external plugins for sound

toolame - audio encoder
ssrc - bitrate sampler

http://www.vcdhelp.com has the guides

Olli

rip the audio first, before encoding to vcd mpg, and use the correct bitrate
use virtual dub (freeware) goto vcdhelp.com
open the original divx file
goto to file > file information
note the framerate for encoding later
goto audio > full processing mode (select this)
goto audio > conversion... and select 44100hz
goto audio > compression... make sure no compression PCM is selected
goto file >save wav name the file and wait a few minutes
after encoding's finished open video file in tmpgenc and open the wav file you just created as the audio source file
you can now encode and select the range, etc, as you normally would
i hope this helps
happy converting :o)

I don't think it is that type of issue! :)

Techno

Hi,
I am having quality problems when I use the DirectShow Multimedia File Reader (VFAPI)
The VCD movie that is created using this reader, results in a movie with a lot of jumps when any kind of motion is involved.
When I use the other 2 readers (AVI2-OpenDML, AVI-VFW) there are some jumps in the resulting movie also but the result is much smoother compared to directshow.

Has anybody else noticed the same behaviour?

Thanks in advance.

I forgot to mention that, the AVI2-OpenDML & AVI-VFW don't convert sound from DivX files, that's why I cant use them.

I am very new at using this program, but I have a question concerning the quality of the resulting MPEG1 video I've been getting.

Basically, I have a whole bunch of downloaded Divx-encoded AVI videos (NTSC). All I need to do is convert them from AVI format to VCD (MPEG1) format, and then (later) burn them. I've been able to do the conversions, and I've also had success burning them with Nero.

The only thing I'm wondering about is that the quality of the resulting video tends to be lower than that of the original one. I've messed around with various options without getting any better result.

The input videos are either full-screen or wide-screen, but I prefer keeping the black bands on the top and bottom of wide-screen videos. I've tried all of the settings of "Motion Search Precision", I've changed around the "Video Source" and "Field Order", and also changed the "Source Aspect Ratio" and "Video arrange Method", but the quality doesn't improve.

The only other thing which I had to change early on was to increase the priority of the "DirectShow Multimedia File Reader" under the "VFAPI plug-in" tab in the "Environment" section because certain files were "unsupported". Doing so fixed that problem.

The thing is, the resulting video doesn't look horrible - I'd say it's about 90-95% of the original one in terms of quality. I was just wondering if that was normal.

Any help/advice any of you can offer would be greatly appreciated.

well, make sure you have very high quality in the motion search precision.

Brighten up the video a bit.

There maybe some blocks in the DIVX file, so when you convert it to MPEG, you notice it more.

Techno

Also ... don't forget that the standard resolution bitrate of VCD (1150) will give rise to a blocky effect. The way to counter this is to up the bitrate and/or the res. This means in effect that you are creating a non-standard VCD - an XVCD

I'm trying to merge 2 mpg2 files so I can author the mpg file. both are the same specs. I open up TMPG2.53 and select mpg tools merge and add my mpgs...
1.)000.mpg[3.72gb] and 2.)001.mpg[222mb]Now I run the program to merg the two...it stops at 10% and says out of memory. What does that mean and how do I fix it.
My sytem consist of:
Windows 2000
P3-1ghz
768mb PC133 ram
40gig HD for video files
20gig HD for operating system
my windows paging file is 8095mb for all my drives

What difference does the audio 'Sampling Rate' make when Encoding mpeg-1 for playing on a DVD player. Does it have to be set to a certain value for NTSC COMPATABILITY or is this just a quality thing? I just burned a video to disk and the sound was there for the first 30 sec. then nothing for the rest of the video, but when I play the same mpeg (from file) on my computer the sound is perfect?!?

Actually I just realized that the sound disappears only when i skip ahead (fast forward) on my DVD player. Then the sound completely disappears for the rest of the video. I've been having this problem alot when I burn them, but I just realized this fact. Is it a possibility that it's from using the cheap burning software I got with my burner?

use nero! and make sure the sampling rate is 44100Hz

Techno