Need difinitive help on avi converter
 

Hi,
I am new to this forum so please go easy on me !!
I have been using avi converter 2.0 and the resulting video's are juddery, so I downloaded the pal converter.ini which is on this site. This now makes the video nice and smooth but I have audio sync problems, but I think this was a problem even before the .ini mod. The audio is always ahead of the video but I have found that if I use rewind search, it sometimes cures it. I have used a few different types of third party converters but none thus converted will play. I have found avi 2.0 uses a type of codec(possibly like xvid) called:-
MEncoder Sherpya-MinGW-20060312-4.1.0

I have tried u.k. vob files 25fps, music videos 29.--fps and none are in sync. The only one that seems to work is a film that was encoded with a frame speed of 23fps, which is perfectly in sync and never seems to falter.

Has anyone got a difinitive answer as to how to make the audio in sync or a way to alter the converter.ini to achieve this. I tried this myself with limited knowledge but the files just won't play so I obviously don't know what I am doing !!
Please help as I am sure many people would be interested in how to achieve this. The picture is stunning and so is the sound; If they could be brought together, it would be fantastic .

Thanks in advance to anyone who tries to help.

Re: Need difinitive help on avi converter
 

You have not told us what player you are using but I am guessing it is a Sumvision Sempra Pro.

AVI Converter is just a GUI for Mencoder which converts video files to xvid. Mencoder normally uses a command line interface which is why AVI Converter is such a help as you do not have to worry about entering lines of code.

AVI Converter 4 is downloadable from this site and when used with the pal2 ini file, I have found that the sync problem disappears. When you download the ini file there is also a html file which explains how the change in frame rate was what was required to achieve this. eg moved down to 24 fps instead of 25fps.

Maybe moving down another step to 23 fps by updating the ini file in wordpad would work for you but it is the framerate that you must be sure of as the Sempra Pro expects it to be just a fraction short of 24.

Re: Need difinitive help on avi converter
 

Hi
Thanks for the reply.
I don't know the exact make but I think it is a rockchip player and it uses the new codec mentioned in my original post. I don't think avi ocnverter 4 that you mentioned will work with my player as it will only play if converted with that codec. Also, I made a mistake about the sample file that came with it that works perfectly; I said it was 23 f.p.s but it was actually 20 f.p.s. I have now found after using it for a while that the sync problem doesn't seem to happen very often with dvd conversions but it still won't work with most music videos which are often at 29 f.p.s.

I also have a second problem. When trying to convert a dvd to play on it, I first have to convert it from the disc using either clone dvd or fab hd decryptor. However, when there are multiple audio streams, it is often hard to know which one to select as neither programmes have the ability to let me listen to each stream before selecting it. What this means is that I often end up with the directors commentary as I can't tell until it has finished converting. Is there any programme you know of that has this facility to listen before converting to vob files ?
Thanks.

Re: Need difinitive help on avi converter
 

soundssupreme - I'm having the same problem with a 2.4" rockchip player purchased for my friend. Since she's technologically impaired, I promised her I'd put videos on for her. The thing is, the audio sync problem is driving me nuts. As the video progresses, the sync gets progressively worse to the point that by the end of the a sitcom episode, the audio is at least a whole scene ahead. I found, like you, that rewinding it temporarily fixes the problem, but before long the same thing happens again. I tried AVconverter 4.0 with the pal2 ini fix, but it doesn't help. Please! If someone knows anything about this can you please help? I'm desperate to watch some good videos without hassle

Re: Need difinitive help on avi converter
 

I'm sorry to hear you are having the same problem but as yet I have not found a fix for it yet. It would seem to me that the original video that came with the player is not made the same as when using the conversion software such as avi converter 2.0 which is what I have been using. I have found that when converting u.k. dvd's using avi converter 2.0 with the converter ini mod for 25f.p.s. , the sync problem is only apparent on some dvd's and as you have said, rewinding the video for a short while usually cures the problem, for a while at least. I have found when converting music videos, the sync problem is on it permanently and cannot seem to get rid of it at all, but most music videos that I have are not 25 f.p.s. but usually 29f.p.s. for some unknown reason, so the sync problem would seem to be that the audio and video are not mutually linked to each other as I believe they are with most other formats. I do not know enough about this to help you but maybe others can pitch in and help. I am sure someone out there has the knowledge to sort this problem out. Sorry I could not have been of more help.

Re: Need difinitive help on avi converter
 

Just had a look around the forum and found this new post entitled :-

AVIConverter.ini file posted by Grindathotte-Help !!


There is some help on this in that post which could help, I printed it out and I am going to try it out with my music videos and see how I get on with them. I hope you all have success too !!

Re: Need difinitive help on avi converter
 

Hi from RickyWoo,

I'm the guy who eventually found the write text code combination to add to the .ini file left on this forum by Grindathotte to add to the AVI Converter v4.0 programme to bring the audio back into sync on converted videos to play on my Sumvision Sempra Pro 4GB mp4 player.

Apparently this a very common problem with AVI Converter which affects a lot of mp4 players requiring this conversion programme to play on their Mp4- AVI players.

But like a lot of members I think it's also down to some other factors, either the player itself or the individuals computer setup your running which sometimes just does'nt agree with the present .ini file which can be downloaded from this site. Thats probably why some people have success with it and some don't, I was one of the unlucky one's who didnt.

So after posting a fresh enquiry about changing the text to the .ini file I got a reply message from Grindathotte (The Original Author) which was a BIG HELP, and I managed to sync the audio/video in the end.

For me, personally it took a couple of hours to work it out by converting the same 30 second sample video clip and applying different delay time codes to the .ini file. each time I converted it, I then replayed the clip to check to see if it was in sync on my Mp4 player. I eventually found that "0.2" was the correct delay code to add and correct the out of sync problem. For reference I'm using Windows XP home edition.

Grindathotte posted a new add in "Text Code" for the .ini file which can either increase or decrease the audio sync to play in time with the video part. This extra code can be found in my other post
AVIConverter.ini file posted by Grindathotte-Help !!

I've pasted a sample of the codeline in this post for all to see how it's done. Remember to add the new code to every line in the .ini file that applies to your player video size, mine was 224 x 176.

In the Converter.ini file, after "-ofps 20" and "-ofps 24" add the parameter " -delay -0.2 " (The value can be either positive or negative. You may have to adjust the figure up or down the scale to suit your own sync problem, it's a time consuming process to get it just right, but the result is great if you stick at it !!!! LOL...)

Example of first code line, complete all paragraphs, in this case from 1 to 10.

1-1-1=-ofps 20 -delay -0.2 -vf-add scale=224:176 -vf-add expand=224:176:-1:-1:1 -srate 44100 -ovc xvid -xvidencopts bitrate=350:max_bframes=0:quant_type=h263 -oac lavc -lavcopts acodec=mp2:abitrate=128

I hope this information helps you...Good Luck from RickyWoo.